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  • Resize partition of Windows 7 running on VirtualBox with dynamically allocated storage

    - by Nicolas Raoul
    I run Windows 7 inside VirtualBox. I resized the disk of Windows 7 from 25 GB to 50 GB: VBoxManage modifyhd Windows\ 7\ Pro.vdi --resize 50000 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% PROBLEM: I can' grow the partition, neither with Windows 7 itself nor with GParted: It looks like VirtualBox does not tell the client OS about the new size. What additional step is necessary?

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  • Very poor read performance compared to write performance on md(raid1) / crypt(luks) / lvm

    - by Android5360
    I'm experiencing very poor read performance over raid1/crypt/lvm. In the same time, write speeds are about 2x+ faster on the same setup. On another raid1 setup on the same machine I get normal read speeds (maybe because I'm not using cryptsetup). OS related disks: sda + sdb. I have raid1 configuration with two disks, both are in place. I'm using LVM over the RAID. No encryption. Both disks are WD Green, 5400 rpm. IO test results on this raid1: dd if=/dev/zero of=/tmp/output.img3 bs=8k count=256k conv=fsync - 2147483648 bytes (2.1 GB) copied, 22.3392 s, 96.1 MB/s sync echo 3 > /proc/sys/vm/drop_caches dd if=/tmp/output.img3 of=/dev/null bs=8k - 2147483648 bytes (2.1 GB) copied, 15.9 s, 135 MB/s And here is the problematic setup (on the same machine). Currently I have only one sdc (WD Green, 5400rpm) configured in software raid1 + crypt (luks, serpent-xts-plain) + lvm. Tomorrow I will attach another disk (sdd) to complete this two-disk raid1 setup. IO tests results on this raid1: dd if=/dev/zero of=output.img3 bs=8k count=256k conv=fsync 2147483648 bytes (2.1 GB) copied, 17.7235 s, 121 MB/s sync echo 3 > /proc/sys/vm/drop_caches dd if=output.img3 of=/dev/null bs=8k 2147483648 bytes (2.1 GB) copied, 36.2454 s, 59.2 MB/s We can see that the read performance is very very bad (59MB/s compared to 135MB/s when using no encryption). Nothing is using the disks during benchmark. I can confirm this because I checked with iostat and dstat. Details on the hardware: disks: all are WD green, 5400rpm, 64mb cache. cpu: FX-8350 at stock speed ram: 4x4GB at 1066Mhz. Details on the software: OS: Debian Wheezy 7, amd64 mdadm: v3.2.5 - 18th May 2012 LVM version: 2.02.95(2) (2012-03-06) LVM Library version: 1.02.74 (2012-03-06) LVM Driver version: 4.22.0 cryptsetup: 1.4.3 Here is how I configured the slow raid1+crypt+lvm setup: parted /dev/sdc mklabel gpt type: ext4 start: 2048s end: -1 Now the raid, crypt and the lvm configuration: mdadm --create /dev/md1 --level=1 --raid-disks=2 missing /dev/sdc cryptsetup --cipher serpent-xts-plain luksFormat /dev/md1 cryptsetup luksOpen /dev/md1 md1_crypt vgcreate vg_sql /dev/mapper/md1_crypt lvcreate -l 100%VG vg_sql -n lv_sql mkfs.ext4 /dev/mapper/vg_sql-lv-sql mount /dev/mapper/vg_sql-lv_sql /sql So guys, can you help me identify the reason and fix it? It has to be something with the cryptsetup as there is no such read slowdown on the other setup (sda+sdb) where no encryption is present. But I have no idea what to do. Thanks!

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  • Ofice for Mac 2011 does not start, how do I repair the database?

    - by RomanT
    After a TimeMachine restore; Office 2011 is having kittens over permissions it would seem. Having attempted a 'repair' out of Disk Utility, am still seeing: there is a problem with the Office database upon startup, after which Word/Excel work without issues. Outlook on the other hand won't even start. Given the obvious message here "You do not have write access to the Outlook application folder" – where is the DB located to check?

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  • VMWare - Writing files to virtual hard drive performance

    - by Ardman
    We have just moved our infrastructure from physical servers to virtual machines. Everything is running great and we are happy with the result of the move. We have identified one problem, and that is reading/writing performance. We have an application that compiles files and writes to disk. This is considerably slower on the new virtual machines compared to the physical machines. Is there a performance bottleneck when writing to a virtual hard drive compared to a physical hard drive?

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  • OS X Apache giving 503 error for anything in /api directory

    - by WilliamMayor
    I have a locally hosted website that uses Smarty templates, I'm trying to get started on building an API for the site. I've used virtualhost.sh to create a local virtual host for this and other sites. I've discovered that if I put a directory called api at the root of any of these virtual hosts I will get a 503 error when I try to access anything inside. I am using mod-rewrite but so far only to append a .php extension when needed. Here are the error logs for a request: [Thu Feb 09 13:42:37 2012] [error] proxy: HTTP: disabled connection for (localhost) [Thu Feb 09 13:49:06 2012] [error] (61)Connection refused: proxy: HTTP: attempt to connect to [fe80::1]:8080 (localhost) failed [Thu Feb 09 13:49:06 2012] [error] ap_proxy_connect_backend disabling worker for (localhost) The middle line gave me a clue to look in my hosts file because why would a request go to [fe80::1]:8080? I commented out that line and tried again, this time the error was in connecting to the standard 127.0.0.1 localhost. I have concluded that perhaps there is some config file somewhere picking up the underlying request of localhost/api and pointing it somewhere other than my virtual host. At this point my ability to fix the problem fails me. Can anyone help?

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  • Remove Mac OS X and install Windows?

    - by user18948
    Is there a way to completely remove Mac OS X from MacBook Pro and replace it with Windows 7? I’m not talking about Boot Camp, I’m talking about completely wiping disk of any files and partitioning it for Windows installation. Any BIOS, booting, compatibility problems? I know it’s rare to replace Mac OS X for Windows, but I have this one situation where this is needed so I would appreciate any help. Thanks!

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  • Creating DOS bootable cd

    - by dotnetdev
    I need to burn a cd which I will boot from to reset a password on Windows Server. I am using Active Password Changer, but I get an error like so: http://www.freeimagehosting.net/image.php?faa4737491.png How can I create a "DOS bootable disk"? I have an ISO on the cd I thought that will work. The manual says I need DOS system files, where do I get these from? Thanks

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  • How long do you keep log files?

    - by Alex
    I have an application which writes its log files in a special folder. Now I'd like to add a functionality to delete these logs after a defined period of time automatically. But how long should I keep the log files? What are "good" default values (7 or 180 days)? Or do you prefer other criteria (e.g. max. used disk space)?

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  • Apache Reverse proxy for intranet and other integrated application on intranet

    - by user1433448
    I'm trying to configure a reverse proxy (ssl) with apache 2.2 in Debian Squeeze, but I have some problems, specially with some path absolute and with https I'll try to detail what I have made and what I'm trying to configure I have a server Debian Squeeze with apache2.2 + mod_proxy_html with: # apt-get install libapache2-mod-proxy-html libxml2-dev # a2enmod proxy # a2enmod proxy_http # a2enmod proxy_html # a2enmod headers After that I have configured a virtual host with: reverse_proxy_ssl.conf I'm trying to configure to allow access of our intranet from internet with a reverse proxy (apache that is located in DMZ). With this configuration domain.com/intranet works correctly and we can access to intranet, but we have one problem when from domain.com/intranet we need to use another internal application that is called from intranet with absolute path ( https://192.168.10.25/application/) and from internet appears that try to access with internal ip, and this link es incorrect from external site We only need to access from intranet to multiple internal application that are in external server and we like to restrict to minimal access from internet. All the application that are in the smae server of intranet are working. The second problem is with https and reverse proxy in our firewall appears some errors with packets (not valid packets), and with https seems to work. What can I do to solve this problems (absolute path and ssl problem) Thanks

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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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  • Win'08 - Extend volume size on SAN attached storage in a failover cluster

    - by user53207
    Running Win 2008, I'd like to extend the volume of a SAN attached drive that is part of a failover cluster. The SAN team has allocated additional drive space which is being seen by Windows Storage Manager. However, the option to "Extend Volume" is disabled, so is the ability to turn it into a dynamic disk. Is the ability to extend volumes when part of a failover cluster disabled or not available when it's part of SAN attached storage?

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  • php5-mysqlnd on debian wheezy/sid?

    - by Joseph
    I am trying to install php5-mysqlnd on a fresh install of Wheezy (/etc/debian_version refers to it as wheezy/sid) and I'm having a problem: root@debian:/var/www/lottery1# apt-get install php5-mysqlnd Reading package lists... Done Building dependency tree Reading state information... Done php5-mysqlnd is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? Y Setting up php5-mysqlnd (5.4.0-3) ... ucfr: Attempt from package php5-mysqlnd to take /etc/php5/mods-available/mysql.ini away from package php5-mysql ucfr: Aborting. dpkg: error processing php5-mysqlnd (--configure): subprocess installed post-installation script returned error exit status 4 Processing triggers for libapache2-mod-php5 ... configured to not write apport reports Reloading web server config: apache2. Errors were encountered while processing: php5-mysqlnd E: Sub-process /usr/bin/dpkg returned an error code (1) It seems there is some sort of conflict with the php5-mysql package, but I still get this error even after removing (with --purge) the php5-mysql package. Any thoughts? I'm trying to run a web tool that makes heavy use of mysqli_result::fetch_all(). Thanks!

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  • Normal check interval and re try check interval doesnot work in nagios

    - by chandra
    Hi Guys, I have configured nagios in my environment and i have used the following setting for a service which monitors the disk space for every 10 min , Normal check interval =10 min retry check interval = 1 min Maximum attempts =2 But accoring to this values i should recieve my first alert after 10 min and then from there for every 1 min. But in my case i am recieving my first alert and then next alert comes to me after 20 min. Can some one help me in fixing this.

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  • Just to not to be ingnorant.

    - by atch
    Could anyone explain to me why is it that producers of processors claim that their processor can perform so many thousands (or millions) operations per second and yet typical program (Word, VS etc.) on my machine with 4GB, 3500hz starts with no less than 10sek. Have to mention that I've just formatted disk and tick any necessarry boxes to optimize my machine. So if for example outlook starts in 10 sek I wonder how many millions of operations have to be performed to run such program? Thanks

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  • Debian apache2 restart fault after some updates

    - by Ripeed
    can anyone give me an advice with this please: I run update on my debian server by Webmin. After updating some apache2 and etc. It shows update fail. After that I cant start apache2. I must run netstat -ltnp | grep ':80' Then kill pid kill -9 1047 and now i can start apache2 When I started it first time after update some websites on fastCGI wont work I must change them in ISPconfig3 to mod-PHP and now works NOW - I cant restart apache without kill pid. In log of ISP I see Unable to open logs (98)Address already in use: make_sock: could not bind to address [::]:80 (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down In log of some website I see [emerg] (13)Permission denied: mod_fcgid: can´t lock process table in pid 19264 Do you thing it will be solution update everithing by: apt-get update and apt-get upgrade to complete all updates? I have little scare if I do that then next errors will occur. If I look at apache log i see error: Debian Python version mismatch, expected '2.6.5+', found '2.6.6' But that was there before that problem before. Thanks A LOT for help.

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  • Finder Using Nearly 100% CPU

    - by jerwood
    I'm having a problem where the Finder uses WAY too much CPU time. It's using up to 100% of one of my cores. I'm running 10.6.2 on a MacBook Pro w/ 6GB of RAM, plenty of fast (SSD) disk space. I also run DropBox and BackBlaze. I've tried disabling my third party stuff (DropBox and BackBlaze), but that doesn't seem to help. It's killing my battery life!

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  • Hard Drives: Always on or spin up/down as needed?

    - by Terminal Frost
    The specific application is a NAS that hosts media content and is frequently accessed during the day. My NAS was probably cycling on and off around 5 times a day so I decided to not allow it to spin down. I'm thinking this will be better for the drive, but I am not sure. I am wondering, however, if there is any concrete information out there as to what causes more detrimental wear on a hard disk: Spinning 24/7 or cycling on and off as needed?

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  • Where are Microsoft Outlook 2007 mails located ?

    - by Manu
    After a windows crash, I bought a new computer. I would like to recover the mails stored in the old install. I can access the old drive as a data disk, but windows won't boot anymore from it. I've reinstalled everything on the new computer, but can't find my old emails. Where are they stored ? Since I can't boot from the old drive, I cannot use Outlook's .pst export :(

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  • Windows XP machine not seeing external FAT32 partitions correctly

    - by Rob_before_edits
    About 8 months ago my Windows XP machine stopped being able to see FAT32 external drives when I plug them in... mostly. I will explain... It happens with all my FAT32 drives, whether they be unpowered external hard drives, powered external hard drives, SDHC cards plugged directly into the machine's card reader, or SDHC cards plugged in via a separate USB card reader. All of these drives/cards used to work fine on this machine. They all stopped working at about the same time. NTFS volumes are not affected. If I plug in NTFS external drives they are recognized right away. I even have one external drive with two partitions on it, one is NTFS which is recognized, the other is FAT32, which is not recognized. If I attach a FAT32 drive, then reboot, then the drive almost always becomes visible to the machine after the reboot. Sometimes I can plug in a FAT32 drive and it works right away. Not often though. I'd say I get lucky more often with SDHC cards than hard drives. I'm developing a theory that I only get lucky with hard drives if I'm running Acronis Disk Director when I plug them in, though that usually doesn't work either - I need more data here, this may be a red herring. Getting lucky with a hard drive is really rare, usually I have to reboot. When a FAT32 is recognized, either because I got lucky or because I rebooted, I can almost never safely disconnect it. It tells me "The device 'Generic volume' cannot be stopped right now. Try stopping the device again later". I can't seem to get around this. IIRC, I've tried closing every open window, and still no luck. Since I care about my data usually the only way to disconnect a FAT32 drive is to shut down the machine. As you can imagine, two reboots just to read a drive is getting pretty old... When the machine fails to see a FAT32 drive it usually comes up with the appropriate drive letter and the words "Local Disk" in Windows Explorer instead of the correct partition name. If I click on it I get "J:\ is not accessible. The parameter is incorrect." Before this problem arose I always clicked the "safely remove" button for everything, including SDHC cards where I think it's not necessary. I've known for a long time that this is the correct procedure for hard drives, so I don't think failing to do this was the cause of this problem (before someone asks :) Any answers or suggestions most welcome.

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  • Is it possible to boot from a passthrough lsi2008 under esxi?

    - by Kurt
    I currently have Solaris 11 Express running on bare metal. I'd like to convert the machine to an ESXI host and run the existing os as a virtual machine. I have ESXI setup, the virtual machine made, if I boot the vm from the recovery disk the drives and lsi2008 controller is visible. Everything looks like it should work, but the vm bios does not seem to try and boot from the controller. Is this just impossible?

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