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• Bad motherboard / controller / HDs?

  - by quidpro

  On a leased server, I am running into some timing issues with an application that requires precise timing. Server is a Dual Xeon E5410 running on a Supermicro X7DVL-3 motherboard under CentOs 5.5 x64. The application I am running is timer sensitive and keeps sensing drift whether under load or at idle, but especially under load. I did some investigating with atop and dd and found some mind-blowing numbers. Mind you, I am no Linux guru but something sure seems out of whack. I ran: dd bs=4096 if=/dev/zero of=/bigtestfile to generate disk activity. Regardless whether I wrote it to sda or sdb my DSK value in atop would go over 100%, at one time peaking at 1700%. Again it does not matter if I am writing to sda or sdb. DSK | sdb | busy 675% | read 0 | write 110 | avio 78 ms | Here are the smartctl outputs: # smartctl -A /dev/sda smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0007 165 165 021 Pre-fail Always - 2750 4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 21 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x000a 200 200 051 Old_age Always - 0 9 Power_On_Hours 0x0032 065 065 000 Old_age Always - 25831 10 Spin_Retry_Count 0x0012 100 253 051 Old_age Always - 0 11 Calibration_Retry_Count 0x0012 100 253 051 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21 194 Temperature_Celsius 0x0022 116 093 000 Old_age Always - 27 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0012 200 200 000 Old_age Always - 0 199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 051 Old_age Offline - 0 # smartctl -A /dev/sdb smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0003 180 180 021 Pre-fail Always - 3958 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 22 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 200 200 051 Pre-fail Always - 0 9 Power_On_Hours 0x0032 068 068 000 Old_age Always - 24087 10 Spin_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0 11 Calibration_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21 194 Temperature_Celsius 0x0022 122 096 000 Old_age Always - 25 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0009 200 200 051 Pre-fail Offline - 0 Any idea what's wrong here? Bad motherboard? It would seem rare that both drives are going bad (smartctl says they PASS_, so it leaves the mobo as the culprit in my eyes.

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• New Computer Build Questions

  - by MJ

  I'm in the process of gathering parts and specs for a new machine. I wear many hats, so the machine needs to do a lot. I need at least 2 monitor support, if not three. I also play many online MMOs (wow, aion, war hammer, etc), along with some freelance programming projects. I already have a case which is very large, so it will fit anything. I have 2 other SATA HDs. They are more for storage and basic programs. I feel that the best improvement could be done with a solid state HD, true or not? I'm more of a software/programming guy, so ANY input at all on improving this system build would be appreciated. I have a few questions with this list. AMD or Intel? I don't know enough about either to choose what would best fit me. Thanks! **EDIT: Thanks for the input everyone! Here are some answers: I do a lot of programming and gaming, so I do need things for both. The newer video card covers the gaming aspect, as well as allowing me to have many monitors. (hopefully upgrade to dual 30' or more) I don't need any additional HDs at this time. I have a SATA 160g and 120g from my previous computer, and a NAS system with over 2TB of storage on the homenetwork. I just wanted a fast HD for OS/programs/games. With the memory. I have used G.SKILL before in 2 system builds. It's done excellent for me in them. Very stable. **EDIT2: Made some additional changes. Lowered the power supply down to 750, which saves me more $$. Also changed the SSD to 2 WD 650G HDs. Thinking of doing a CPU upgrade to the 3.4GHZ AMD Phenom II X4 965 Black Edition Deneb 3.4GHz System Specs - Budget:$1500 CPU: AMD Phenom II X4 955 Black Edition Deneb 3.2GHz MB: GIGABYTE GA-MA790GPT-UD3H AM3 AMD 790GX HDMI ATX Memory: G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 1066 Video: DIAMOND 5870PE51G Radeon HD 5870 (Cypress XT) 1GB 256-bit GD Power Supply: XCLIO GREATPOWER 1000W ATX12V SLI Ready CrossFire Ready HD:Intel X25-M Mainstream SSDSA2MH080G2C1 2.5" 80GB SATA II MLC Changes: Power Supply: CORSAIR CMPSU-750TX 750W ATX12V / EPS12V HD: 2x Western Digital Caviar Blue WD6400AAKS 640GB CPU: AMD Phenom II X4 965 Black Edition Deneb 3.4GHz

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• Installing drivers for switchable graphics

  - by Anonymous

  I recently bought a laptop that came with Windows 7 64-bit installed. I have some older (16-bit and 32-bit) software that doesn't work with 64-bit Windows, but works just fine with 32-bit. Since I also wanted to get rid of all of the pre-installed spam, I decided to wipe the hard drive and install a fresh copy of Windows 7 32-bit. I can't get the graphics cards working. This laptop uses switchable graphics, an Intel card and a Radeon card. I first tried installing this driver from Intel, which works for the Intel card. Of course, the Radeon card doesn't work with this driver and I need it for some of the newer games I have. I also tried this driver. Windows's device manager will recognize the Radeon card, but it will still use the Intel card. Also, even though that package says it contains the Intel driver, the Intel card still isn't properly recognized by Windows (leaving me with a nasty 800x600 resolution). On top of that, the Catalyst Control Center won't open (saying "The Catalyst Control Center is not supported by the driver version of your enabled graphics adapter") I tried installing HP's driver then installing Intel's driver on top of it. Device manager will then recognize both graphics cards properly. However, the laptop still uses the Intel card. The CCC still won't start (saying the same thing as before) and I can't find any of 'switching' graphics cards. Before formatting, I could right-click the desktop and click "Configure Switchable Graphics" This option hasn't been in the context menu regardless of what driver(s) I've installed. After some research, I found out that this menu entry runs the command "cli.exe Start PowerXpressHybrid" I've tried manually running this command, but I get the same unsupported message from CCC. So, does anyone know how I can get this working? I would like to be able to switch between the Intel and Radeon. But, if there's some way to disable the Intel and use only the Radeon, that would be fine I dual-boot with Linux (framebuffer uses the Intel, haven't even tried getting X set up yet) Here's the output of lspci # lspci -v | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller: ATI Technologies Inc NI Seymour [AMD Radeon HD 6470M] (prog-if 00 [VGA controller]) The laptop is a HP Pavilion g6t-1d00. HP doesn't support installing anything but Windows 7 64-bit, so calling tech support isn't an option. Thanks for any help UPDATE: I finally got it working. After a fresh install of Windows 7, I installed the HP driver (the one linked above). Then, there's an optional Windows update I installed (don't remember the exact name, but it'll stick out). After that, graphics switching works just like it's supposed to. Moab, thanks anyways for your help

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• Apache2 cgi's crash on odbc db access (but run fine from shell)

  - by Martin

  Problem overview (details below): I'm having an apache2 + ruby integration problem when trying to connect to an ODBC data source. The main problem boils down to the fact that scripts that run fine from an interactive shell crash ruby on the database connect line when run as a cgi from apache2. Ruby cgi's that don't try to access the ODBC datasource work fine. And (again) ruby scripts that connect to a database with ODBC do fine when executed from the command line (or cron). This behavior is identical when I use perl instead of ruby. So, the issue seems to be with the environment provided for ruby (perl) by apache2, but I can't figure out what is wrong or what to do about it. Does anyone have any suggestions on how to get these cgi scripts to work properly? I've tried many different things to get this to work, and I'm happy to provide more detail of any aspect if that will help. Details: Mac OS X Server 10.5.8 Xserve 2 x 2.66 Dual-Core Intel Xeon (12 GB) Apache 2.2.13 ruby 1.8.6 (2008-08-11 patchlevel 287) [universal-darwin9.0] ruby-odbc 0.9997 dbd-odbc (0.2.5) dbi (0.4.3) mod_ruby 1.3.0 Perl -- 5.8.8 DBI -- 1.609 DBD::ODBC -- 1.23 odbc driver: DataDirect SequeLink v5.5 (/Library/ODBC/SequeLink.bundle/Contents/MacOS/ivslk20.dylib) odbc datasource: FileMaker Server 10 (v10.0.2.206) ) a minimal version of a script (anonymized) that will crash in apache but run successfully from a shell: #!/usr/bin/ruby require 'cgi' require 'odbc' cgi = CGI.new("html3") aConnection = ODBC::connect('DBFile', "username", 'password') aQuery = aConnection.prepare("SELECT zzz_kP_ID FROM DBTable WHERE zzz_kP_ID = 81044") aQuery.execute aRecord = aQuery.fetch_hash.inspect aQuery.drop aConnection.disconnect # aRecord = '{"zzz_kP_ID"=>81044.0}' cgi.out{ cgi.html{ cgi.body{ "<pre>Primary Key: #{aRecord}</pre>" } } } Example of running this from a shell: gamma% ./minimal.rb (offline mode: enter name=value pairs on standard input) Content-Type: text/html Content-Length: 134 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><BODY><pre>Primary Key: {"zzz_kP_ID"=>81044.0}</pre></font></BODY></HTML>% gamma% ) typical crash log lines: Dec 22 14:02:38 gamma ReportCrash[79237]: Formulating crash report for process perl[79236] Dec 22 14:02:38 gamma ReportCrash[79237]: Saved crashreport to /Library/Logs/CrashReporter/perl_2009-12-22-140237_HTCF.crash using uid: 0 gid: 0, euid: 0 egid: 0 Dec 22 14:03:13 gamma ReportCrash[79256]: Formulating crash report for process perl[79253] Dec 22 14:03:13 gamma ReportCrash[79256]: Saved crashreport to /Library/Logs/CrashReporter/perl_2009-12-22-140311_HTCF.crash using uid: 0 gid: 0, euid: 0 egid: 0

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• How can I troubleshoot a "Hardware Malfunction" blue screen?

  - by AaronSieb

  My computer has suddenly started crashing to a blue screen with the following text: hardware malfunction call your hardware vendor for support *the system has halted* The crash occurs randomly during normal use. I have thus far always been able to reproduce it by transferring the contents of a large folder... But I'm not sure if this is caused by the file transfer, or simply because the transfer takes long enough for something else to trigger it. A bit about my hardware I have an dual core Intel CPU, and Asus motherboard. Video card is by nVidia, and connects via PCIe. My hard drives are in pairs, and connect via SATA to a RAID controller on the motherboard. They are configured to use a RAID0 configuration. What I've tried so far There is nothing in the Windows Event Log. WhoCrashed was unable to find any crash records. ScanDisk runs to completion (it launches prior to Windows load) and reports no errors. MemTest reports no errors (to 200% coverage). System temperatures are in the range of 40 to 50 degrees Celsius, with video card temperatures in the range of 60 to eighty degrees Celsius. I have stripped the system down to a minimal configuration (hard drive, video card, one memory module, motherboard, CPU, power supply). The problem still occurrs. However, this has allowed me to rule out a few components: It is not the video card because the problem still occurred after replacing the video card another one I had on hand. It is not the hard drive or anything software related because the problem occurred after a fresh installation of Windows on a replacement hard drive. It is not the hard drive cables because I replaced those with new ones and still had the problem. It is not the power supply because the problem still occurred after replacing the power supply with another one I had on hand. It is probably not the memory because I've tried three different memory modules in three different memory slots and was still able to replicate the issue. Is there anything I can do to confirm what's causing the issue? At the moment it seems as though it must be either the motherboard or CPU, but those are both difficult components to replace... In addition, both components are relatively new (two to three years old). I will gladly edit in any additional information I can get my hands on, and/or focus the question as I can find more details...

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• MD3200 - 3 to 4x less throughput than MD1220. Am I missing something here?

  - by Igor Polishchuk

  I have two R710 servers with similar configuration. One in my office has MD1220 attached. Another one in the datacenter of my hosting services vendor has MD3200. I'm getting significantly worse throughput from MD3200 at my vendors setup. I'm mostly interested in sequential writes, and I'm getting these results in bonnie++ and dd tests: Seq. writes on MD1220 in my office: 1.1 GB/s - bonnie++, 1.3GB/s - dd Seq. writes on MD3200 at my vendor's: 240MB/s - bonnie++, 310MB/s - dd Unfortunately, I could not test the exactly the same configurations, but the two I have should be comparable. If anything, my good performing environment is cheaper than the bad performing. I expect at least similar throughput from these two setups. My vendor cannot really help me. Hopefully, somebody more familiar with the DAS performance can look at it and tell if I'm missing something here and my expectations are too high. To summarize, the question here is it reasonable to expect about 100MB/s of sequential write throughput per each couple of drives in RAID10 on MD3200? Is there any trick to enable such performance in MD3200 with dual controller as opposed to simple MD1220 with a single H800 adapter? More details about the configurations: A good one in my office: Dell R710 2CPU X5650 @ 2.67GHz 12 cores 96GB DDR3, OS: RHEL 5.5, kernel 2.6.18-194.26.1.el5 x86_64 20x300GB 2.5" SAS 10K in a single RAID10 1MB chunk size on MD1220 + Dell H800 I/O controller with 1GB cache in the host Not so good one at my vendor's: Dell R710 2CPU L5520 @ 2.27GHz 8 cores 144GB DDR3, OS: RHEL 5.5, kernel 2.6.18-194.11.4.el5 x86_64 20x146GB 2.5" SAS 15K in a single RAID10 512KB chunk size, Dell MD3200, 2 I/O controllers in array with 1GB cache each Additional information. I've also ran the same tests on the same vendor's host, but the storage was: two raids of 14x146GB 15K RPM drives RAID 10, striped together on the OS level on MD3000+MD1000. The performance was about 25% worse than on MD3200 despite having more drives. When I ran similar tests on the internal storage of my vendor's host (2x146GB 15K RPM drives RAID1, Perc 6i) I've got about 128MB/s seq. writes. Just two internal drives gave me about a half of 20 drives' throughput on MD3200. The random I/O performance of the MD3200 setup is ok, it gives me at least 1300 IOPS. I'm mostly have problems with sequentioal I/O throughput. Thank you for looking into it. Regards Igor

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• All the Gear and No Idea: Suggestions for re-designing my home/office/entertainment network

  - by 5arx

  Help/ Advice/ Suggestions please: I have a load of kit that I love but which currently operate in disconnected, sometimes counter-productive way. Because I never really had a masterplan I just added these things one after another and connected them up in ad hoc ways. Since I bought my Macbook I've found I spend much less time on the MacPro that was until then my main machine. Perversely, as my job involves writing .Net software, I spend a lot of Mac time actually inside a Windows 7 VM. I stream media from the HP box to the PS3 and thus to the TV, but its not without its limitations/annoyances. We listen to each other's iTunes libraries but the music files are all over the place and it would be good to know they were all safely in one location (and fully backed up). I need to come up with a strategy that will allow me to use all the kit for work, play (recording live music, making tunes, iMovie work), pushing/streaming media to the TV and sharing files with my other half (she uses a Windows laptop and her iPod touch). Ideally I'd like to be able to work on any of the machines and have a shared homedrive that was visible to all machines so all my current files were synced up wherever i was. It would be great if I could access everything securely and quickly over the web. I'd also like to be able to set up a background backup process. The kit list thus far: Apple MacPro 8GB/3x250GB RAID0 + 1TB Apple MacBook Pro 13" 8GB/250GB - I spend a lot of my work time on a Windows 7 VM on this. Crappy Acer laptop (for children's use - iPlayer, watching movies/tv files) HP Proliant Server 4GB/80GB+160GB+300GB Sun Ultra 10 2 x 80GB (old, but in top-notch condition) PS3 160GB iPod Classic 2 x 8GB iPod Touch Observations: Part of the problem is our dual use of Windows and OS X - we can't go for a pure NT style roaming profile. Because the server is also used for hosting test/beta applications and a SQL Server db, it can't be dedicated to file serving. The two Macs really could do with sharing a roaming profile or similar. I'd love to be able to do something useful with the Ultra 10. My other half has been trying to throw it away for over five years now and regularly ask what function it serves in my study :-( I've got no shortage of 500GB external USB hard drives iMovie files are very large and ideally would be processed on a RAID system. Apple's TimeMachine isn't so great. If anyone could suggest all or part of a setup that would fulfil some of my requirements I'd be very grateful. I am willing to consider purchasing one or two more bits of kit (an Apple TV and a Squeezebox have been moted by friends) if they will help make efficiencies rather than add to the chaos and confusion. Thanks for looking.

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• JNDI Datasource Problem on Tomcat 6, Hibernate

  - by Asuman AKYILDIZ

  I am using Tomcat 6 as application server, Struts-Hibernate and MyEclipse 6.0. My application uses JDBC driver but I should modify it to use JNDI Datasource. I followed steps as described in tomcat 6.0 howto tutorial. I defined my resource in tomcatconf: <Resource name="jdbc/ats" global="jdbc/ats" auth="Container" type="javax.sql.DataSource" driverClassName="oracle.jdbc.OracleDriver" url="jdbc:oracle:thin:@//localhost:1521/MISDEV" username="TEST" password="TEST" maxActive="20" maxIdle="10" maxWait="-1" validationQuery="SELECT 1 from dual" removeAbandoned="true" removeAbandonedTimeout="30" logAbandoned="false"/> I gave reference in my application web.xml: <resource-ref> <description>Oracle Datasource example</description> <res-ref-name>jdbc/ats</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> And I defined datasource-dialect in my hibernate-cfg.xml <property name="connection.datasource">java:comp/env/jdbc/ats</property> <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property> But when I create hibernate session, it can not open the connection: 09:18:11,322 ERROR JDBCExceptionReporter:72 - Connections could not be acquired from the underlying database! org.hibernate.exception.GenericJDBCException: Cannot open connection I also tried to set the properties at runtime: Configuration configuration = new Configuration(); configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle9Dialect"); //configuration.setProperty("hibernate.connection.datasource", "java:comp/env/jdbc/ats"); configuration.setProperty("hibernate.current_session_context_class", "thread"); configuration.setProperty("hibernate.connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider"); configuration.setProperty("hibernate.show_sql", "true"); sessionFactory = configuration.configure().buildSessionFactory(); It does not open connection again. But, when I use JDBC driver it works: Configuration configuration = new Configuration(); configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle9Dialect"); //configuration.setProperty("hibernate.connection.datasource", "java:comp/env/jdbc/ats"); configuration.setProperty("hibernate.connection.url", "jdbc:oracle:thin:@//localhost:1521/MISDEV"); configuration.setProperty("hibernate.connection.username", "test"); configuration.setProperty("hibernate.connection.password", "test"); configuration.setProperty("hibernate.connection.driver_class", "oracle.jdbc.OracleDriver"); configuration.setProperty("hibernate.transaction.factory_class", "org.hibernate.transaction.JDBCTransactionFactory"); configuration.setProperty("hibernate.current_session_context_class", "thread"); configuration.setProperty("hibernate.connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider"); configuration.setProperty("hibernate.show_sql", "true"); sessionFactory = configuration.configure().buildSessionFactory(); I have been searching for 3 days and no success. What may be de problem?

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• Nginx and PHP-FPM running out of connections

  - by E3pO

  I keep running into errors like these, [02-Jun-2012 01:52:04] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 19 idle, and 49 total children [02-Jun-2012 01:52:05] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 16 children, there are 19 idle, and 50 total children [02-Jun-2012 01:52:06] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 32 children, there are 19 idle, and 51 total children [02-Jun-2012 03:10:51] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 18 idle, and 91 total children I changed my settings for php-fpm to these, pm.max_children = 150 (It was at 100, i got a max_children reached and upped to 150) pm.start_servers = 75 pm.min_spare_servers = 20 pm.max_spare_servers = 150 Resulting in [02-Jun-2012 01:39:19] WARNING: [pool www] server reached pm.max_children setting (150), consider raising it I've just launched a new website that is getting a conciderable amount of traffic on it. This traffic is legitimate and users are getting 504 gateway timeouts when the limit is reached. I have limited connections to my server with IPTABLES and I'm running fail2ban and keeping track of nginx access logs. The traffic is all legitimate, i'm just running out of room for users. I'm currently running on a dual core box with ubuntu 64bit. free total used free shared buffers cached Mem: 6114284 5726984 387300 0 141612 4985384 -/+ buffers/cache: 599988 5514296 Swap: 524284 5804 518480 My php.ini max_input_time = 60 My nginx config is worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 19000; # multi_accept on; } worker_rlimit_nofile 20000; #each connection needs a filehandle (or 2 if you are proxying) client_max_body_size 30M; client_body_timeout 10; client_header_timeout 10; keepalive_timeout 5 5; send_timeout 10; location ~ \.php$ { try_files $uri /er/error.php; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 256 16k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_max_temp_file_size 0; fastcgi_intercept_errors on; fastcgi_pass unix:/tmp/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } What can I do to stop running out of connections? Why does this keep occurring? I'm monitoring my traffic on Google Analytics realtime and when the user count gets above about 120 my php-fpm.log is full of these warnings..

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• Windows 7 boot problem (with colorful blinking smilies)

  - by Ishmael Smyrnow

  I put my computer (Windows 7) to sleep, and a couple hours later, tried to wake it back up, but the monitor wouldn't come back on. I did a hard reset (held power button), but I still couldn't get the monitor to show anything. I plugged it into my laptop, and the monitor works fine. I then swapped out the video card with an older one I have. The monitor came on and started showing the boot process. However, shortly after the Windows 7 animated logo came up, the screen went blank, it made this weird beeping noise, and I seen the strangest thing ever. Small, colorful blocks started to fill my screen, and flash, as if something was loading. Inside of those blocks, were smilies (like the ASCII character kind). This continued for about a minute, then the computer rebooted. It scared the sh!t out of me. I've never had a virus before, and I'm savvy enough to keep myself from one, but I'm wondering if that's what it was. I've been using computers for ages, and never seen anything quite like this. Has anyone ever seen something like this? I'm doing hardware diagnostics before trying to boot into Windows again. Hopefully I can figure this out, but I thought I would consult the SU community while I wait on these results. -- UPDATE -- I did a Memory Diagnostic, which turned up nothing. I also booted into Safe Mode no problem, and scheduled a disk check on both of my drives (I dual boot XP & 7). I was feeling good, and tried putting my regular video card back in, and the monitor won't display anything with it. Also, even though the monitor displays nothing, the system sounds like it's booting up. However, I hear a clicking in one of my hard drives that isn't there with the older video card. Could this be a problem with my hard drive, video card, or PSU? PSU makes sense, except for the fact I've been using the same setup for over a year, and the video card doesn't require it's own power plug thing.

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• How to diagnose repeated "Starting up database '<dbname>'"

  - by Richard Slater

  I have a SQL 2008 server which is predominantly used as a development server, in the last two weeks it has been having occasional "fits", I have isolated the cause of these fits as CHECKDB being run almost continuiously, the following log information is logged to the Windows Event Log (Source: MSSQLSERVER, Category: Server): Event: 1073758961, Message: Starting up database 'DBName1'. Event: 1073758961, Message: Starting up database 'DBName2'. Event: 1073759397, Message: CHECKDB for database 'DBName1' finished without errors on 2010-07-19 20:29:26.993 (local time). This is an informational message only; no user action is required. Event: 1073759397, Message: CHECKDB for database 'DBName1' finished without errors on 2010-07-19 20:29:26.993 (local time). This is an informational message only; no user action is required. This is repeated every 1-2 seconds untill SQL Server is restarted or the offending databases are detatched. I initially thought that it was a problem with the databases so I took a backup and restored them to a SQL Express instance, all of the data is in tact, and CHECKDB runs without problem. The two databases that were causing a problem last week were not being used; so I took full backups of them and detached the databases, this resolved the problem. However at 0100 GMT this morning to other totally unrelated databases started showing the same problems. There is nothing in the event log to suggest that something happened to the server such as a restart, there are no messages about processes crashing or issues being detected with the storage controller. Speaking to the owner of the company this computer has suffered from "gremlins" in the past, however advice was taken and the motherboard was replaced and the computer rebuilt, memory and processor are the same. Stats: O/S: Windows 2008 Standard Build 6002 CPU: 2x Pentium Dual-Core E5200 @ 2.5GHz RAM: 2GB SQL: 2008 Standard 10.0.2531 Edit: someone posted then deleted a comment about AutoClose, it was turned on on the databases affected. It seems that best practice is to disable it so I have done that with the folllowing. EXECUTE sp_MSforeachdb 'IF (''?'' NOT IN (''master'', ''tempdb'', ''msdb'', ''model'')) EXECUTE (''ALTER DATABASE [?] SET AUTO_CLOSE OFF WITH NO_WAIT'')' I won't know if the problem recurs for some time so I am still open to further answers.

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• Windows 7 x64 installation freezes on new PC build

  - by jhsowter

  Symptoms While attempting to install Windows 7 (64 bit) on my new PC build, it freezes usually at the point where it is expanding the windows image, but has frozen as early as accepting the licence agreement, and as late as just after the first restart. My specs are at the bottom of the post. So far I have tried the following to identify the problem, in rough chronological order: Tried different hard drives with different sata cables. Same symptoms. I later used a different computer to install windows on the same hard drive with no problems. Tried the RAM in different slots, and tried one RAM stick instead of two. Same symptoms. Updated the BIOS to 1.60. Same symptoms. Ran Memtest86+ with RAM in dual channel. It passed about 6 times when I left it running overnight. Used USB to install windows instead of an optical drive. Same symptoms. Change SATA configuration from AHCI to IDE. Same symptoms. Tried various different SATA ports. Same symptoms. Updated BIOS to 1.70. Same symptoms. I saw the RAM did not list my motherboard as being supported even though the motherboard did list the RAM as being supported. So I tried some Kingston DDR3 1333MHz RAM instead. Same symptoms. Other (possibly) pertinent information My CPU idles at about 30 °C. I can't tell what it gets to when it's working. When I installed the CPU, the lever which locks the CPU in place took quite a bit of force to pull down. Now I didn't just yank it down without rechecking the CPU was seated properly about 5 times, but it does seems unusual, and I wonder if the CPU was seated badly if I would see these symptoms? I am out of ideas and don't know how to diagnose any further. I suppose either the motherboard or CPU must be the problem. I am on the verge of taking it to a specialist. The Question How should I proceed from here? Is there anything I can rule out as being the source of the symptoms I am seeing? My Specs CPU: Intel i5 3570k RAM: G.Skill RipjawsX 8GB kit HDD: single 3.5" 500GB SATA or 160GB 2.5" SATA (at different times and sometime together. But no RAID or anything). MB: ASRock Extreme4 Z77 PSU: Silverstone Strider Plus 600W ST60F-P

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• Splitting an internet connection between multiple separate subnetworks

  - by pythonian4000

  Problem I have an internet connection that I want to split between four separate networks. My requirements are: I need to be able to monitor the amount of bandwidth and data being used by each network, and notify or control as necessary. The four networks should only be able to connect to the internet, not each other. My parents need to be able to operate it, so it needs a simple, preferably Windows-based GUI. Progress so far Server I have a mini-ITX server with six Gigabit ethernet ports - one for the ethernet internet connection, one for each of the four networks, and one for remote access to the server for administration. Bandwidth control I spent a long time researching solutions here. The majority of the control systems/software I found could control bandwidth usage via QOS, but could not monitor or control the amount of data being used. Eventually I found the SoftPerfect Bandwidth Manager, which has everything I need in terms of monitoring and control - per-interface quota management, usage statistics, a web interface for checking usage, and email notifications when quotas are exceeded. It is also Windows-based and has a simple GUI. Internet sharing This is where I am having issues. I am currently using Windows XP Pro SP2 for the server (yes, I know this is far from ideal, but it's the only spare Windows OS I currently have). I can't use the built-in Internet Connection Sharing for several reasons: The upstream internet router has an IP of 192.168.0.1 which ICS clashes with, and I cannot change the router settings. ICS can only share an internet connection with a single interface, but I have four. I have tried bridging the four network cards, but then the Bandwidth Manager cannot see the four individual interfaces - it only sees the bridge. I have tried setting up Dual DHCP DNS server (and am having issues getting DHCP offers to be received by clients), but that would still require gateway software of some sort, which I have been unable to find. My current attempt is to use OpenVPN, with a server for the internet NIC and a separate client for each of the four networks. My thought is that I could bridge the OpenVPN TAP devices to each NIC, meaning that the Bandwidth Manager would control traffic from the bridge instead of the interface. I have not made much progress here though - I've never used OpenVPN before. Questions Is there a Windows software package that does everything I need? (Unlikely, I know) Is there a Windows software package that will share internet between multiple NICs without bridging? Are either of my about attempts feasible? Would it help to have a newer/server version of Windows? Is there a non-Windows alternative that is easy to use?

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• Linux Mint 14 severe overheating

  - by agvares

  I've tried switching to Mint (it was Mint 12) about 6 months ago, but failed to do it due to enormous overheating which made it virtually impossible to run any applications more complex than Gedit. Time had passed, and now I'm back again with Mint 14, but feeling way more determined. What I face are the following issues: 1) Great overheating (and by great I mean that just by doing nothing my CPU temp is floating around 70-75 C, which I find a lot) 2) Running multiple applications (let's say Chrome, Skype and Pidgin) results in critical overheating and immediate shutdown of the system 3) Due to the stuff listed above, my battery drains in about 10-15 minutes, pretty much turning my laptop into a crippled desktop machine I've got a HP-dv6 laptop (i7, 6gb RAM, dual graphics) Here's the output of lspci: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Whistler XT [AMD Radeon HD 6700M Series] 07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) 0d:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) 13:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01) 19:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) what i've tried to do already: 1) I've edited my grub file to add some "splash" arguments there 2) Installed jupiter and powertop 3) Tried to upgrade to newer kernels (up to 3.8), btw running anything newer than 3.5 results in both resolution and wi-fi detection fail 4) Read lots of forum threads devoted to the topic So, my question is simple: What else might I do to become finally able to use Mint as my default OS without the risk of being burned alive by the CPU heat?

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• Quantifying the effects of partition mis-alignment

  - by Matt

  I'm experiencing some significant performance issues on an NFS server. I've been reading up a bit on partition alignment, and I think I have my partitions mis-aligned. I can't find anything that tells me how to actually quantify the effects of mis-aligned partitions. Some of the general information I found suggests the performance penalty can be quite high (upwards of 60%) and others say it's negligible. What I want to do is determine if partition alignment is a factor in this server's performance problems or not; and if so, to what degree? So I'll put my info out here, and hopefully the community can confirm if my partitions are indeed mis-aligned, and if so, help me put a number to what the performance cost is. Server is a Dell R510 with dual E5620 CPUs and 8 GB RAM. There are eight 15k 2.5” 600 GB drives (Seagate ST3600057SS) configured in hardware RAID-6 with a single hot spare. RAID controller is a Dell PERC H700 w/512MB cache (Linux sees this as a LSI MegaSAS 9260). OS is CentOS 5.6, home directory partition is ext3, with options “rw,data=journal,usrquota”. I have the HW RAID configured to present two virtual disks to the OS: /dev/sda for the OS (boot, root and swap partitions), and /dev/sdb for a big NFS share: [root@lnxutil1 ~]# parted -s /dev/sda unit s print Model: DELL PERC H700 (scsi) Disk /dev/sda: 134217599s Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 63s 465884s 465822s primary ext2 boot 2 465885s 134207009s 133741125s primary lvm [root@lnxutil1 ~]# parted -s /dev/sdb unit s print Model: DELL PERC H700 (scsi) Disk /dev/sdb: 5720768639s Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 34s 5720768606s 5720768573s lvm Edit 1 Using the cfq IO scheduler (default for CentOS 5.6): # cat /sys/block/sd{a,b}/queue/scheduler noop anticipatory deadline [cfq] noop anticipatory deadline [cfq] Chunk size is the same as strip size, right? If so, then 64kB: # /opt/MegaCli -LDInfo -Lall -aALL -NoLog Adapter #0 Number of Virtual Disks: 2 Virtual Disk: 0 (target id: 0) Name:os RAID Level: Primary-6, Secondary-0, RAID Level Qualifier-3 Size:65535MB State: Optimal Stripe Size: 64kB Number Of Drives:7 Span Depth:1 Default Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if Bad BBU Current Cache Policy: WriteThrough, ReadAdaptive, Direct, No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default Number of Spans: 1 Span: 0 - Number of PDs: 7 ... physical disk info removed for brevity ... Virtual Disk: 1 (target id: 1) Name:share RAID Level: Primary-6, Secondary-0, RAID Level Qualifier-3 Size:2793344MB State: Optimal Stripe Size: 64kB Number Of Drives:7 Span Depth:1 Default Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if Bad BBU Current Cache Policy: WriteThrough, ReadAdaptive, Direct, No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default Number of Spans: 1 Span: 0 - Number of PDs: 7 If it's not obvious, virtual disk 0 corresponds to /dev/sda, for the OS; virtual disk 1 is /dev/sdb (the exported home directory tree).

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• Why do I have multiple drives in my backup system image?

  - by bebop

  I have a drive which has 2 partitions. One is where the OS is installed, the other is a data (but not libraries) drive. When I try and create a backup using the built in tool, it wants to include both partitions in the system image. Why does it do this? If I move the os to a separate drive will I be able to back up just this data? Edit: To be more clear. I have 4 disks in the machine. 1 disc has 2 partitions. These are c: and e:, the other disks are d: f: and h:. The OS is installed on c: and libraries are stored on h:. The libraries are already backed up using crashplan, but I want to create a system image so I can easily restore the machine, if it either dies or if I get a SSD drive. When I choose backup (either through the wizard or if I open it through control panel) and check (or click) create a system image it automatically adds both c: and e: to the list of drives that will be backed up, and I cannot change this, the checkboxes to unselect are greyed out. I would like to know why it automatically adds e: to the list (but not h:, where the libraries are) and if I can change some setting so whatever files it has on e: that it thinks need to be backed up as part of the system image are moved to c:. How can I determine what they are? Is it because c: and e: are partitions of the same disk? If I move c: tro a different disk will that mean I only have to back up c:? Thanks Edit 2: I have viewed all files including hidden and system ones on both drives and it seems that I have a suspicous hidden e:\boot\ folder. I think that I might have installed the OS as a VHD at first then installed a seperate version straight on the disk, having dual boot for a while, then used EasyBCD to remove the VHD boot and file. Might this be what is causing my issue? How might I go about removing this? is it safe to just delete the boot folder?

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• Intermittent internet access on a flat network - Router is connected

  - by Naveed

  I’m looking for some help with network settings. I’ve just started a new job (non-IT!) and we have problems with our office network. I’m the most IT literate in the organisation (15 permanent employees) and so have been dealing with IT issues. Our main bit of software is web-based so we need constant web access but it sometimes goes down for between 20 minutes and 3 hours despite everything seemingly working fine. It’s a flat network with wireless APs, BT Business Broadband 8Mbit connection and that’s about it. We have no servers and no standard settings and staff are encouraged to bring in their own laptops and connect! The network basically exists to provide internet access and that’s it. We also have students accessing the wireless (and I know there’s a whole list of access and content issues etc but right now we just need internet access stabilised). This is what we have: Building 1 Cisco SLM-224P 24-port PoE 10/100 switch with 2 gigabit ports 3 x ZyXEL NWA-3160 wireless APs Samsung OfficeServ 7100 phone server which borrows the building’s wiring Building 2 Netgear GS605-UK 5-port 10/100/1000 switch 1 x ZyXEL NWA-3160 wireless AP 1 x BT Business Hub – 2wire BT2700hgv – is the DHCP server We have 2 link cables between the buildings. One connects the two switches on a gigabit port. The second (oddly) connects the switch in building 2 to the OfficeServ server in building 1. When the internet goes down I can still access the router through a wireless connection. I can also ping websites and get a response. Firefox just says “Cannot connect” etc. The system then heals itself when it feels like it. (Sorry if this is asking too much but) These are my immediate questions… Why would browser-based internet go down? I don’t know enough about protocols etc but I can try to standardise settings. The WAPs have a DNS server setting and I don’t know whether it should be “None” or “From DHCP”. What should be the DHCP server? The router or the Cisco switch? Or something else?! Would there be any problem in connecting the second link from switch to switch? Is that good practice? Is it worth swapping the Netgear GS605 with either a Cisco SG200-08 or Netgear GS108T-200? Is it worth upgrading the router to, for instance, a Cisco RV042G Dual Gigabit router which would also act as a switch? Or is it better to have a separate router and switch in Building 2?

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• Lenovo Ideapad Y480 can't reinstall windows?

  - by elegantonyx

  Alright, so here's the deal... For a while, I wanted to mess with Linux. I don't know why, but I wanted to. So, what I did was use WUBI and install Ubuntu. Because of some unknown reason (Intel Rapid Start? Half the drivers being on a Lenovo-installed SSD [separate from the main hard drive]?) it wouldn't dual boot. So, I decided to use Linux Mint instead, and install it in a partition. Since Windows 7 Home Premium won't make partitions any more if you have a certain number already, I just shrank my system drive and left empty space for the installer to claim. When I installed Mint, it worked, but left my Windows 7 installation unable to boot and eventually it corrupted. I tried to use a system repair disc I burned earlier but it didn't find the Windows installation, so I assume the partition corrupted. I used this link:http://www.pcworld.com/article/248995/how_to_install_windows_7_without_the_disc.html to try and reinstall Windows. What happened was that originally it said that the partition I was trying to reinstall from had been locked down by the OEM (Lenovo). So, I went into GParted, wiped EVERYTHING, and selected 'Construct new Boot record' or whatever that function is, and now the error is: "Setup was unable to create a new system partition or locate an existing system partition. See the setup log files for more information." Does anyone know how to see the log files? Can anyone help? This system is a month old but the warranty only covers hardware failures, and I would need to pay around USD$60 for them to fix it. Please help. Any ideas? this is my main machine... Extra information: I have at my disposal: System Repair Disc (Burned myself) Windows 7 Home Premium 64 bit SP1 installation disk (burned from the pcworld links) Gparted Live CD Linux Mint 13 live cd A system backup (from the morning before this catastrophe) made using the Windows Backup and Restore. I put it on an external drive...that should be safe for now.

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• Ubuntu Newbie Needs Assistance!!

  - by Steve Greene

  New Ubuntu User Needs Help!- version 9.10 does not communicate with laptop Hello folks, Several days ago, I installed Ubuntu 9.10 onto my Acer Aspire 3100 laptop, running it alongside Widows Vista as a dual-bootable system. Creation of the Ubuntu boot CD went fine, and the installation onto my hard drive was flawless. Ubuntu opens and behaves as I would expect, except for one little problem. For reasons unknown to me, Ubuntu is not communicating with my laptop's networking hardware, and I have no internet connectivity, even when sitting directly under the wireless router at the local library (literally), which puts out a wickedly-fast signal that my Windows Vista OS auto-detects and immediately connects to. Up in the right side of the Ubuntu desktop, I click on the network icon and it does not show a wireless connection at all, even though I am only a few feet from the router. At home, where I use a dialup modem, I also see no means of getting online. My modem is an HDAUDIO Soft Data Fax Modem with Smart CP,manufactured by CXT (Conexant Systems Inc., file version 4.0.13.0, and the driver version is 7.58.0.0). I desparately wish to convert to Ubuntu. I used Mac for ten years, and then Windows for ten years. Now, after 20 years, I want to live out my days as an open-source Ubuntu fanatic. I am ready to give the old status quo the boot! I am an advanced computer user, but I am not a programmer. I seek a solution that is user-friendly for normal people, something equivalent to a driver that I can easily install or activate that will allow Ubuntu to see my hardware and get me connected. Can anyone help me over this hopefully-little glitch so that I can move on in total Ubuntu bliss? My processor is a Mobile AMD Sempron Processor 3500+ at 1.80 GHz, 1.50 GB RAM, and a 32-bit Operating System. I am running Windows Vista Home Basic, Service Pack 2. My current email is [email protected] if you have a workable solution that does not require programmer status to implement. Surely this must be a simple fix that I simply am overlooking, but being the new guy on the block, I have yet to be enlightened. Thanks for your help in coming up to speed!! Steve Wanna' be Ubuntu Fanatic "If you're not living on the edge, you're taking up too much space."

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• networking tunnel adapter connections?

  - by Karthik Balaguru

  I understand that Tunnel Adapter LAN is for encapsulating IPv6 packets with an IPv4 header so that they can be sent across an IPv4 network. Few queries popped up in my mind based on this :- If i do 'ipconfig', Apart from ethernet adapter LAN details, I get a series of statments as below - Tunnel adapter Local Area Connection* 6 Tunnel adapter Local Area Connection* 7 Tunnel adapter Local Area Connection* 12 Tunnel adapter Local Area Connection* 13 Tunnel adapter Local Area Connection* 14 Tunnel adapter Local Area Connection* 15 Tunnel adapter Local Area Connection* 16 Except for the *16, all the other Tunnel Adapter Local Area Connections show Media Disconnected. Why is the numbering for the Tunnel adapter LAN not sequential? It is like 6, 7, 12, 13, 14, 15, 16. A strange numbering scheme! I tried to figure it out by thinking of some arithmetic series. But, it does not seem to fit in. There is a huge gap between 7 and 12. Any ideas? What is the need for so many Tunnel Adapter LAN connections? Can you tell me a scenario that requires all of those ? I did ipconfig /all to get more information. From the listing, I understand that: 16, 15, 14, 12 are Microsoft 6to4 Adapters 13, 6 are isatap Adapters 7 is Teredo Tunneling Pseudo-interface I understand that the above are for automatic tunneling so that the tunnel endpoints are determined automatically by the routing infrastructure. 6to4 is recommended by RFC3056 for automatic tunneling that uses protocol 41 for encapsulation. It is typically used when an end-user wants to connect to the IPv6 Internet using their existing IPv4 connection. Teredo is an automatic tunneling technique that uses UDP encapsulation across multiple NATs. That is, It is to grant IPv6 connectivity to nodes that are located behind IPv6-unaware NAT devices ISATAP treats the IPv4 network as a virtual IPv6 local link, with mappings from each IPv4 address to a link-local IPv6 address. That is to transmit IPv6 packets between dual-stack nodes on top of an IPv4 network. That is, to put in simple words, ISATAP is an intra-site mechanism, while the 6to4 and Teredo are for inter-site tunnelling mechanisms. It seems that Teredo should alone enabled by default in Vista, But my system does not show it to be enabled by default. Interestingly, it shows a 6to4 tunnel adapter (Tunnel adapter LAN connection 16) to be enabled by default? Any specific reasons for it? If i do ipconfig /all, why is only one Teredo present while four 6to4 are present ? I searched the internet for answers to the above queries, but I am unable to find clear answers.

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• Optimal setup for ASUS P6X58D Premium BIOS (no OC)?

  - by rumtscho

  Normally, I'd trust the mainboard manufacturer to choose the best options as defaults. But I had trouble with the board, because even with Quick Boot enabled, it booted twice as slowly as a Pentium 4 Celeron. Then I changed lots of options at once (most of them weren't explained in the manual, just mentioned with a single sentence) and the boot time is only marginally worse than the Pentium 4 (54 sec against 46 sec from button to pw entering screen). Now I don't know if I have turned something off which should have stayed on. I guess I even won't be able to boot from a CD now, because even though it is present in the boot sequence, I took off a timeout I think it needs to check whether there is a disk in the drive. The second reason is that I don't have an internal HDD, only a SSD. I forgot my sources blush but I am under the impression that today's BIOS and OS options are geared toward booting from a HDD, which is often less than optimal when one boots from a SSD, especially when there are functions which cause avoidable writing cycles, as a SSD wears out after too many writing cycles. Most of the things I've read concern the OS, but there are some BIOS-relevant options too. I am especially confused about the disk mode. The board supports AHCI, IDE-simulation and RAID, but of the different articles I've read, there is a proponent for each and no clear arguments for any. So can one tell me which options are important in general and which are important for a SSD-only system? I don't want to overclock the CPU, so you don't have to say anything about this (yes I know the board is meant for OC:)). I am thinking of overclocking the RAM, since they sold me 1600er heatsinked modules which are running at 1066 now, but I'm not sure yet about that. The rest of the system: i7-930, Intel X25-m G2, 6 GB RAM, GTS 250, some no-name Blue-ray ROM. 2 external HDDs over USB 2.0. Lots of other USB-connected hardware (12 devices I think), no SATA 3 drives (will disabling the controller have an impact on performance?), no LAN, only WiFi. Lucid Lynx 64 bit, no dual boot, no virtual installations. The main uses of the system are: managing and playing/showing all the media stored on the external disks, lots of image manipulation, some video editing, a bit of (non-demanding) gaming, rarely development. Lots of Internet surfing too, but this shouldn't have much impact on performance.

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• Windows 7 The boot selection failed because a required device is inaccessible 0xc000000f

  - by piratejackus

  I have a problem with my Windows 7, hardware : Acer 3820TG Operating Systems : Windows 7 and Ubuntu 10.04 dual Case: When I try to boot my windows 7 I see an error: "Window failed to start. A recent hardware or software change might be the cause. To fix the problem: 1.Insert.... 2. .... ... status : 0xc000000f info : The boot selection failed because a required device is inaccessible .... " I can't exactly remember what were my last actions on Windows. I already searched this error and applied the proposed solutions, I created a repair USB (because I don't have a CD-ROM nor a Windows 7 CD) such as; -repair operating system :it says it cannot repair it -checking disk (chkdsk D: /f /r) : it checks the disk without a problem or error and it takes pretty long (more than a hour). But when I restart, still the same error. -I didn't create a restore point so I pass this option -I don't have a system image -I tried to run windows recovery (I have a recovery partition) but there are just two options: 1- Format the operating system but retain user data (copies the files under users to c\backup folder, but when I searched deeper I found that there are some people who already tried this option and couldn't find their user files under backup directory). Plus, I have unfortunately just one partition D (it is a fault I know) because I use always Ubuntu. So this is not applicable in my situation 2- Format entire system (Windows). I keep my valuable data in windows but not in user folder. I was reaching them from Windows. -I tried to repair windows boot by: bootrec /fixMBR bootrec /fixBoot bootrec /rebuildBCD I lost all grub menu, and reinstalled it. - ubuntuforums.org/showthread.php?t=1014708&page=29 nothing changed, same error. I created a thread in microsoft forums - http://social.answers.microsoft.com/Forums/en-US/w7install/thread/69517faf-850a-45fd- 8195-6d4ed831f805 but I couldn't find a solution. Before I run chkdsk from usb repair disk I couldn't able to mount Windows (NTFS) partition from Ubuntu, I was getting "couldn't mount file system, error code 2". I tried to fix ntfs partition from ubuntu and got "segmentation fault". I also created a thread on ubuntuforums for this mount problem: - http://ubuntuforums.org/showthread.php?t=1606427 So, after chkdsk, I could enable to mount windows partition but all I see in this partition is chkdsk logs, no any other data. Now, I don't think I lost my data because I don't get any filesystem errors, just the boot section, but this log files under windows partition makes me afraid. I see that Microsoft developers don't have a solution yet for this error. If you need any information to get more idea I can give, maybe I miss some points or it could be complicated. Thanks in advance.

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• networking tunnel adapter connections?

  - by Karthik Balaguru

  I understand that Tunnel Adapter LAN is for encapsulating IPv6 packets with an IPv4 header so that they can be sent across an IPv4 network. Few queries popped up in my mind based on this :- If i do 'ipconfig', Apart from ethernet adapter LAN details, I get a series of statments as below - Tunnel adapter Local Area Connection* 6 Tunnel adapter Local Area Connection* 7 Tunnel adapter Local Area Connection* 12 Tunnel adapter Local Area Connection* 13 Tunnel adapter Local Area Connection* 14 Tunnel adapter Local Area Connection* 15 Tunnel adapter Local Area Connection* 16 Except for the *16, all the other Tunnel Adapter Local Area Connections show Media Disconnected. Why is the numbering for the Tunnel adapter LAN not sequential? It is like 6, 7, 12, 13, 14, 15, 16. A strange numbering scheme! I tried to figure it out by thinking of some arithmetic series. But, it does not seem to fit in. There is a huge gap between 7 and 12. Any ideas? What is the need for so many Tunnel Adapter LAN connections? Can you tell me a scenario that requires all of those ? I did ipconfig /all to get more information. From the listing, I understand that: 16, 15, 14, 12 are Microsoft 6to4 Adapters 13, 6 are isatap Adapters 7 is Teredo Tunneling Pseudo-interface I understand that the above are for automatic tunneling so that the tunnel endpoints are determined automatically by the routing infrastructure. 6to4 is recommended by RFC3056 for automatic tunneling that uses protocol 41 for encapsulation. It is typically used when an end-user wants to connect to the IPv6 Internet using their existing IPv4 connection. Teredo is an automatic tunneling technique that uses UDP encapsulation across multiple NATs. That is, It is to grant IPv6 connectivity to nodes that are located behind IPv6-unaware NAT devices ISATAP treats the IPv4 network as a virtual IPv6 local link, with mappings from each IPv4 address to a link-local IPv6 address. That is to transmit IPv6 packets between dual-stack nodes on top of an IPv4 network. That is, to put in simple words, ISATAP is an intra-site mechanism, while the 6to4 and Teredo are for inter-site tunnelling mechanisms. It seems that Teredo should alone enabled by default in Vista, But my system does not show it to be enabled by default. Interestingly, it shows a 6to4 tunnel adapter (Tunnel adapter LAN connection 16) to be enabled by default? Any specific reasons for it? If i do ipconfig /all, why is only one Teredo present while four 6to4 are present ? I searched the internet for answers to the above queries, but I am unable to find clear answers.

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• Vagrant - Failed login, ssh not set up

  - by motleydev

  This question is two fold because somewhere in my attempts to solve the problem, I created a new one. First: I was trying to vagrant up using a Vagranfile based on the standard hashicorp/precise32 box. Everything worked up until default: SSH auth method: private key where it would eventually time out. Enabling gui in the Vagrantfile showed that the machine never actually logs in. I can use the standard user/pass and log in from that point but the vagrant up process still remains at that prior status. Here's where my understanding might be a little dim. I've tried setting auth method from the insecure_pass_key to my root ~/.ssh/id_rsa or whichever one I wanted to use. I'm not entirely sure where to put a copy of the public key or my authorized keys file. I've got a .vagrant.d folder in my user dir (I'm on OSX) which seems to contain the box images. I've got a .vagrant folder in my directory with the Vagrantfile which seems to contain the specific machine I am building off of. I've tried pouring over the docs and forums but I seem to be missing a key concept here. And Now: After a host of tips/tricks such as rolling back by VirtualBox install, uninstalling/reinstalling Vagrant and VritualBox several times, when I try to run vagrant ssh-config with a Vagrantfile based on the same hashicorp/precise32 it says that the box is not enabled for SSH. Specifically, this error: The provider for this Vagrant-managed machine is reporting that it is not yet ready for SSH. Depending on your provider this can carry different meanings. Make sure your machine is created and running and try again. Additionally, check the output of `vagrant status` to verify that the machine is in the state that you expect. If you continue to get this error message, please view the documentation for the provider you're using. So now I am slightly up a creek. Any help would be appreciated if not just clarifying a concept. Some pertinent info: I'm on OSX Maverics Due to the fact I'm running a dual HD system with system files on one HD and user files on another, my permissions are a little wonky and VBoxManage will only let me run commands via Sudo - not sure if it's pertinent - but maybe. I have no idea what I'm doing. That part is perhaps more important.

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• JNDI Datasource Problem on Tomcat 6, Hibernate

  - by Asuman AKYILDIZ

  Hello; I am using Tomcat 6 as application server, Struts-Hibernate and MyEclipse 6.0. My application uses JDBC driver but I should modify it to use JNDI Datasource. I followed steps as described in tomcat 6.0 howto tutorial. I defined my resource in tomcatconf: <Resource name="jdbc/ats" global="jdbc/ats" auth="Container" type="javax.sql.DataSource" driverClassName="oracle.jdbc.OracleDriver" url="jdbc:oracle:thin:@//localhost:1521/MISDEV" username="TEST" password="TEST" maxActive="20" maxIdle="10" maxWait="-1" validationQuery="SELECT 1 from dual" removeAbandoned="true" removeAbandonedTimeout="30" logAbandoned="false"/> I gave reference in my application web.xml: <resource-ref> <description>Oracle Datasource example</description> <res-ref-name>jdbc/ats</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> And I defined datasource-dialect in my hibernate-cfg.xml <property name="connection.datasource">java:comp/env/jdbc/ats</property> <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property> But when I create hibernate session, it can not open the connection: 09:18:11,322 ERROR JDBCExceptionReporter:72 - Connections could not be acquired from the underlying database! org.hibernate.exception.GenericJDBCException: Cannot open connection I also tried to set the properties at runtime: Configuration configuration = new Configuration(); configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle9Dialect"); //configuration.setProperty("hibernate.connection.datasource", "java:comp/env/jdbc/ats"); configuration.setProperty("hibernate.current_session_context_class", "thread"); configuration.setProperty("hibernate.connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider"); configuration.setProperty("hibernate.show_sql", "true"); sessionFactory = configuration.configure().buildSessionFactory(); It does not open connection again. But, when I use JDBC driver it works: Configuration configuration = new Configuration(); configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.Oracle9Dialect"); //configuration.setProperty("hibernate.connection.datasource", "java:comp/env/jdbc/ats"); configuration.setProperty("hibernate.connection.url", "jdbc:oracle:thin:@//localhost:1521/MISDEV"); configuration.setProperty("hibernate.connection.username", "test"); configuration.setProperty("hibernate.connection.password", "test"); configuration.setProperty("hibernate.connection.driver_class", "oracle.jdbc.OracleDriver"); configuration.setProperty("hibernate.transaction.factory_class", "org.hibernate.transaction.JDBCTransactionFactory"); configuration.setProperty("hibernate.current_session_context_class", "thread"); configuration.setProperty("hibernate.connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider"); configuration.setProperty("hibernate.show_sql", "true"); sessionFactory = configuration.configure().buildSessionFactory(); I have been searching for 3 days and no success. What may be de problem?

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