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  • ubuntu 10.04: wlan0 No such device

    - by AodhanOL
    I am using a Dell xps l702x and I am using ubuntu 10.04 because I need to use f77 (don't ask) and I wasn't able to get it working on later versions of ubuntu. I cannot use the wifi at all. I have tried to fix it and have had limited success (changed the output from rfkill list all from Hard blocked: yes, to hard blocked: no). Here is the output from rfkill list all aodhan@aodhan-laptop:~$ rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 2: dell-bluetooth: Bluetooth Soft blocked: no Hard blocked: no Here is the output from iwconfig: aodhan@aodhan-laptop:~$ iwconfig lo no wireless extensions. eth0 no wireless extensions. pan0 no wireless extensions. And here is the output from ifconfig -a: aodhan@aodhan-laptop:~$ ifconfig -a eth0 Link encap:Ethernet HWaddr 5c:f9:dd:3d:f2:f7 inet addr:192.168.1.17 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::5ef9:ddff:fe3d:f2f7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3417 errors:0 dropped:0 overruns:0 frame:0 TX packets:2894 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3317567 (3.3 MB) TX bytes:505049 (505.0 KB) Interrupt:30 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:720 (720.0 B) TX bytes:720 (720.0 B) pan0 Link encap:Ethernet HWaddr 7e:7e:e8:39:70:af BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) And finally, the output from lspci: 00:00.0 Host bridge: Intel Corporation Device 0104 (rev 09) 00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Device 0116 (rev 09) 00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04) 00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5) 00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b5) 00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b5) 00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5) 00:1c.5 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 6 (rev b5) 00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation Device 1c4b (rev 05) 00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05) 01:00.0 VGA compatible controller: nVidia Corporation Device 1246 (rev a1) 03:00.0 Network controller: Intel Corporation Device 008a (rev 34) 04:00.0 USB Controller: NEC Corporation Device 0194 (rev 04) 0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) Please help me! Thank you in advance. Edit: Further info - this is a dual install with a windows 7 system as the other option. However, I can't access that until tomorrow (I won't have access to the windows 7 disc until then, and grub isn't letting me load it). Therefore, I can't be sure whether it still works on that or not. It used to, though.

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  • Connection Error:Oracle.DataAccess.Client.OracleException ORA-12170

    - by psyb0rg
    This has taken many hours of mine. I have to get this .Net app to run on an XP system. Someone seems to have messed up some files so conn.Open() in the C# is causing this error: Connection Error:Oracle.DataAccess.Client.OracleException ORA-12170: TNS:Connect timeout occurred at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure) at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, Object src) at Oracle.DataAccess.Client.OracleConnection.Open() at Service.connect(Int32 sql_choice, String databaseIdentifier, String authenticationKey) in c:\Documents .... This is my sqlnet.ora file: # sqlnet.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora SQLNET.AUTHENTICATION_SERVICES= (NTS) NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT) SQLNET.INBOUND_CONNECT_TIMEOUT = 180 SQLNET.SEND_TIMEOUT = 180 SQLNET.RECV_TIMEOUT = 180 This is tnsnames.ora: # tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. ORACLE2 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = dell )(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = oracle2) ) ) ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = dell )(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) ) EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) ) This is listener.ora: # listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = C:\oracle\product\10.2.0\db_1) (PROGRAM = extproc) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = dell )(PORT = 1521)) ) ) I've tried changing the host name to localhost, 127.0.0.1 but none work I can execute queries from SQL Plus. There are NO firewalls on the system The .Net app and DB are on the same machine. Anyone?

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  • Upload using python script takes very long on one laptop as compared to another

    - by Engr Am
    I have a python 2.7 code which uses STORBINARY function for uploading files to an ftp server and RETRBINARY for downloading from this server. However, the issue is the upload is taking a very long time on three laptops from different brands as compared to a Dell laptop. The strange part is when I manually upload any file, it takes the same time on all the systems. The manual upload rate and upload rate with the python script is the same on the Dell Laptop. However, on every other brand of laptop (I have tried with IBM, Toshiba, Fujitsu-Siemens) the python script has a very low upload rate than the manual attempt. Also, on all these other laptops, the upload rate using the python script is the same (1Mbit/s) while the manual upload rate is approx. 8 Mbit/s. I have tried to vary the filesize for the upload to no avail. TCP Optimizer improved the download rate on all the systems but had no effect on the upload rate. Download rate using this script on all the systems is fine and same as the manual download rate. I have checked the server and it has more than 90% free space. The network connection is the same for all the laptops, and I try uploading only with one laptop at a time. All the laptops have almost the same system configurations, same operating system and approximately the same free drive space. If anything the Dell laptop is a little less in terms of processing power and RAM than 2 of the others, but I suppose this has no effect as I have checked many times to see how much was the CPU usage and network usage during these uploads and downloads, and I am sure that no other virus or program has been eating up my bandwidth. Here is the code ('ftp' and 'file_path' are inputs to the function): path,filename=os.path.split(file_path) filesize=os.path.getsize(file_path) deffilesize=(filesize/1024)/1024 f = open(file_path, "rb") upstart = time.clock() print ftp.storbinary("STOR "+filename, f) upende = time.clock()-upstart outname="Upload " f.close() return upende, deffilesize, outname

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  • Rotate monitor to portrait on Windows Server 2003 with ATI card

    - by Eli
    Does anyone know if it is possible to rotate a monitor from landscape to portrait mode on Windows Server 2003 32-bit with an ATI video card? According to Dell's site, I should be able to rotate my Dell P2310H monitor by installing drivers from their website, but they don't have drivers for Windows Server 2003. I let Windows Update search for the driver (with the driver CD that came with the monitor in my drive) and it did install drivers, but I still don't see any options for rotating. Some people say that the ATI Catalyst Control Center allows for monitor rotation, but I've never been able to run that software on Windows Server 2003. A google search reports that others have the same problem. Has anyone successfully figured out how to rotate a monitor on Windows Server 2003 with an ATI card?

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  • Upgrade from Vista 32 to Vista 64

    - by Lance Fisher
    I just ordered a laptop, and it came with Vista Home Premium 32. I want Vista Home Premium 64 on it. I'm planning a reinstall. Does anyone know if my product key for Vista 32 will also work for Vista 64 for an OEM copy? As far as I know, I just need to get the 64 bit media. Is this correct? Thanks. Update The laptop is a Dell XPS M1330, and its hardware is supported. Dell would even sell it with 64 bit. However, it was significantly more expensive for lower specs, and I couldn't get it in red.

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  • Best way to setup multiple monitors?

    - by terrani
    Hello, I currently have 5 displays. The following is how I installed them. Three 19'' for workspace. One of them is connect directly to the graphic card via DVI. Two of them are using usb graphic adapters. One 720 projector - directly connect to the graphic card via DVI. One 30'' dell monitor - currently connect to laptop via VGA. I would like to connect 30' dell to my main computer. I do not game or use graphic applications. What would be my best options? I am thinking to buy two lower-performance ati or nvidia cards and install them as crossfire(???) or sli. Am I thinking correctly?

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  • Unidentified Connection in Compaq CQ61Windows7 OS on DSL cable network connection

    - by Mohammed Thouseef
    I have Dell studio with shared DSL internet connection my router is "NETGEAR DG834" & Network connection discription is "Broadcom netlink tm gigabit ethernet" this connection is working fine with dell laptop with Vista homepremium OS. My Question is? If i connect HPcompaq presario CQ61 in this connection it will automatically select Public network and display unidentified connection i tried several times but not suceeded its OS is Win7 home premium. but wireless networking is working fine only this problem is faceing with DSL cable connection when i diagnos the connection an error will generate "Local Area Connection does not have a valid IP configuration" in LAN Connection status window i noticed IPV4 & IPV6 Connectivity is showing "No Network Access" please can you clarify whats the problem.

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  • Dual monitors through 1 HDMI port

    - by Carlos
    I currently have a Dell Studio XPS 13 laptop connected to a 24" HP monitor (w2448hc). Im thinking on getting a second one, however am wondering what i need for the setup (hardware wise). Also I was wondering it there is any down side to it, or something i should be aware of. For example, image quality loss, GPU overloading, or anything important I should know. More than anything Im interested in your advice. Also the monitors do have built in speakers (HDMI sound output), is the sound going to be reproduced by only one monitor or both? Specs Model: Dell Studio XPS 13 OS: Genuine Windows® 7 Home Premium 64-Bit CPU: Intel® CoreTM 2 Duo P8600 (2.4GHz, 3MB L2 Cache, 1067MHz FSB) Chipset: NVIDIA® GeForce® MCP79MX RAM: 4GB 1067MHz DDR3 SDRAM Graphics: SLi NVIDIA® GeForce® 9500M - 256MB Thanks for your advice, if there is anything additional i need to buy an you have a personal preference pass the brand name so i can check it out. Thanks!

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  • Dual monitors though 1 HDMI port

    - by Carlos
    I currently have a Dell Studio XPS 13 laptop connected to a 24" HP monitor (w2448hc). Im thinking on getting a second one, however am wondering what i need for the setup (hardware wise). Also I was wondering it there is any down side to it, or something i should be aware of. For example, image quality loss, GPU overloading, or anything important I should know. More than anything Im interested in your advice. Also the monitors do have built in speakers (HDMI sound output), is the sound going to be reproduced by only one monitor or both? Specs Model: Dell Studio XPS 13 OS: Genuine Windows® 7 Home Premium 64-Bit CPU: Intel® CoreTM 2 Duo P8600 (2.4GHz, 3MB L2 Cache, 1067MHz FSB) Chipset: NVIDIA® GeForce® MCP79MX RAM: 4GB 1067MHz DDR3 SDRAM Graphics: SLi NVIDIA® GeForce® 9500M - 256MB Thanks for your advice, if there is anything additional i need to buy an you have a personal preference pass the brand name so i can check it out. Thanks!

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  • Typing lag in WinXP

    - by Ssvarc
    I'm working on a Dell Vostro 1000 laptop that has a mysterious lag in typing. You enter keystrokes and it takes a while to show up on the screen. WinXP Pro was freshly installed and the behavior is still here. Here is the weird part... I've tested the computer with the full Dell diagnostic suite, Prime95 (using UBCD4Win), and Memtest86. Everything checks out as fine. If I run a LiveCD such as UBCD4Win or Ubuntu (9.04?) then there is no typing issue. This is causing me lots of aggravation. Thoughts?

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  • Disk performance below expectations

    - by paulH
    this is a follow-up to a previous question that I asked (Two servers with inconsistent disk speed). I have a PowerEdge R510 server with a PERC H700 integrated RAID controller (call this Server B) that was built using eight disks with 3Gb/s bandwidth that I was comparing with an almost identical server (call this Server A) that was built using four disks with 6Gb/s bandwidth. Server A had much better I/O rates than Server B. Once I discovered the difference with the disks, I had Server A rebuilt with faster 6Gbps disks. Unfortunately this resulted in no increase in the performance of the disks. Expecting that there must be some other configuration difference between the servers, we took the 6Gbps disks out of Server A and put them in Server B. This also resulted in no increase in the performance of the disks. We now have two identical servers built, with the exception that one is built with six 6Gbps disks and the other with eight 3Gbps disks, and the I/O rates of the disks is pretty much identical. This suggests that there is some bottleneck other than the disks, but I cannot understand how Server B originally had better I/O that has subsequently been 'lost'. Comparative I/O information below, as measured by SQLIO. The same parameters were used for each test. It's not the actual numbers that are significant but rather the variations between systems. In each case D: is a 2 disk RAID 1 volume, and E: is a 4 disk RAID 10 volume (apart from the original Server A, where E: was a 2 disk RAID 0 volume). Server A (original setup with 6Gpbs disks) D: Read (MB/s) 63 MB/s D: Write (MB/s) 170 MB/s E: Read (MB/s) 68 MB/s E: Write (MB/s) 320 MB/s Server B (original setup with 3Gpbs disks) D: Read (MB/s) 52 MB/s D: Write (MB/s) 88 MB/s E: Read (MB/s) 112 MB/s E: Write (MB/s) 130 MB/s Server A (new setup with 3Gpbs disks) D: Read (MB/s) 55 MB/s D: Write (MB/s) 85 MB/s E: Read (MB/s) 67 MB/s E: Write (MB/s) 180 MB/s Server B (new setup with 6Gpbs disks) D: Read (MB/s) 61 MB/s D: Write (MB/s) 95 MB/s E: Read (MB/s) 69 MB/s E: Write (MB/s) 180 MB/s Can anybody suggest any ideas what is going on here? The drives in use are as follows: Dell Seagate F617N ST3300657SS 300GB 15K RPM SAS Dell Hitachi HUS156030VLS600 300GB 3.5 inch 15000rpm 6GB SAS Hitachi Hus153030vls300 300GB Server SAS Dell ST3146855SS Seagate 3.5 inch 146GB 15K SAS

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  • Migrating 2008 AD to Windows SBS 2011 and Forefront TMG 2010

    - by Tong Wang
    Our company has two physical servers: a Dell R710 with 4 NIC and a Dell R410 with 2 NIC. Right now, we have Windows server 2008 R2 installed on R710 with AD setup to host our domain. I am thinking to install both SBS 2011 and TMG 2010 on the other R410 running on Hyper-V. As I am fairly new to Windows Server technology, I'd like to check with you fellow Windows admins and see what is the proper way to install SBS 2011 and TMG 2010 and how to migrate the 2008 AD. Your advice and help will be highly appreciated.

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  • Is it better to have more small ram chips or fewer large ones?

    - by Alex Andronov
    I am currently building a new server. I have options between say 32GB Memory for 2 CPUs, DDR3, 1066MHz (8x4GB Dual Ranked RDIMMs) and 36GB Memory for 2 CPUs, DDR3, 1066MHz (18x2GB Dual Ranked RDIMMs) Both at the same price. Should I go for the higher ram amount or the fewer chips? This will be for a Dell PowerEdge R710 with two Intel® Xeon® E5530, 2.4Ghz, 8MB Cache, 5.86 GT/s QPI, Turbo, HT Thanks

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  • SQL Server 2008 Hardware Recommendation;

    - by Jay
    Hi,I work for a large fortune 500 company. We have several SQL 2005 Servers running on DELL Poweredge 2950 with 8 GB RAM and 4 CPU's. Storage is DMX RAID 10. We are in the process of migrating to sql 2008. We are planning on consolidating multiple sql 2005 into single SQL 2008 Server.If anyone can suggest hardware I would appreciate. We have looked at DELL R710, I was wondering if there are other servers that are good for running SQL 2008. Thanks

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  • Virtual LTSP server with KVM

    - by phil
    I want to setup a kvm-based LTSP appliance with Ubuntu 10.04 (server/desktop for ltsp) on a Dell PowerEdge 2900 for ~10-15 clients. People will mostly use Firefox, Thunderbird, OpenOffice and Qcad. Does someone have any experience with this setup? I've had a similar setup with VMware Server 2 and Ubuntu 8.04. How good/bad is kvm compared to VMware for a LTSP appliance? Shall I stick with VMware or can I switch to KVM?

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  • Removing an iSCSI Target - iSCSI initiator 2.0 on Windows Server 2003 R2

    - by DWong
    For the life of me I cannot figure out how to remove an iSCSI target (Dell Equallogic SAN) from a Windows Server 2003 box. The volume shows up in Windows as drive letter Y:\ Using the iSCSI initiator, I can remove the Target Portal, but cannot remove the Target itself. Can someone give me some guidance on this? I've gone as far as setting the volume offline in the Dell SAN management tool, and even permanently deleted the volume. The Target no longer shows up in the iSCSI Initiator properties, but the drive letter is still there under My Computer. And now Windows is throwing delayed write errors for that drive. There must be a proper way to successfully remove an attached Target. TIA!

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  • can't rotate display on windows 7

    - by Barry Fandango
    I'm running 64-bit windows 7 on a dell inspiron 1525 with an Intel 965 graphics chipset. When I bring up the "screen resolution" settings, I can set up my primary and secondary display (the laptop + an LCD monitor) but there is no option for rotation. I'm used to using this feature at work so I was surprised to see it missing. I installed dell's latest drivers for this chipset (although they were not marked as w7 or 64 bit) and no change. Any idea what's going on here? Thanks superusers!

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  • Video acceleration problem with Windows 7 games and PPTX files

    - by Jordan 1GT
    I have a Dell xps M1330 which originally ran Vista, but I upgraded to Windows 7. When I try to run a Win 7 game like spider solitaire I receive the following message: The game is running in software rendering mode. Hardware acceleration is either disabled or not supported by your video card driver which could slow down game performance. Make sure you have the latest video card driver installed and that hardware acceleration is turned on. I confirmed that hardware acceleration is turned on. When I go to Dell's site, I'm told there is no later video driver. When I run the game it runs very choppy. I have a .pptx file which is doing strange things in normal view and I suspect it may be related to the same video acceleration problem.

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  • Hyper-V Cluster with failover - NETWORKING

    - by Adam
    Hi We are looking to setup a 3 node Hyper-V cluster with live migration and failover using: 3 x Dell R710's with dual quad core Xeon & 128 GB RAM & 6 NICs in each 1 x Dell MD 3220i SAN We will be running this setup from a data center and so co-locating our kit. Can anybody explain how we should setup the network connections to make the system redundant? We have looked into this great article but are not sure how to get a 3 server setup correctly and reliably: http://faultbucket.ca/2011/01/hyper-v-failover-cluster-setup/. I believe we need network connections for: live migration, heartbeat, management, hyper-v etc. I assume as we are running it from a DC all IPs will have to be public IPs? Are AD servers will be VMs. One on each Hyper-V server and setup not to be HA.

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  • Reinstallation version Windows 7?

    - by DWBrayton
    I ordered a Windows 7 Home Premium 32bit os online and just received a DVD & Key Code sticker. The DVD label shows it to be a reinstallation DVD, Windows 7 Home Premium 32-bit Dell branded and states that the DVD is only to be used to reinstall the OS on a Dell PC. I built this PC & it previously has had XP Pro installed for the last several years. A couple of weeks ago I had a problem with some Malware & made the mistake of attempting to reinstall the XP Pro only to find out that MS has locked out my key, the same one I have been using on this built PC for the last 3 years. The previous PC was built by a local PC builder & I just reinstalled the OS on the new system. Should I send this Win7 DVD back to where I bought it, or can I use it? What a mess, Thanks DWB

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  • Linux Fiber Channel Host Setup Basic

    - by Jim
    I've been googling for about 4 hours now with no luck. I am trying to setup a Linux server running Oracle Server 6.3 as a Fiber Channel host. And then connect it to a Dell Compellent Fibre Channel Host contain a 500GB Volume. The Oracle server itself contains two Brocade 815 FC HBAs. I've discovered their WWN(I think) via cat /sys/class/fc_host/host1/port_name 0x100000051efc3d85 cat /sys/class/fc_host/host2/port_name 0x100000051efc3d9f The next part is where I am at a loss. I've used iSCSI before...is FC the same deal where you have an initiator and a target? If so where do I specific that in linux? I'm also new to Fiber Channel as a protocol, so i am unsure what is needed to make a transaction? WWN and port ID? Similar to IP:Port combination in the Ethernet world. I've read alot regarding using systool, multipath, fc_transport commands, however none of these is recognized as a valid command from Oracle Server 6.3 Appreciate the guidance and assistance. I installed sccsi-target-utils and can now run rescan-scsi-bus and sg_map -x. rescan-scsi-bus.sh -l -w -r Host adapter 0 (megaraid_sas) found. Host adapter 1 ((null)) found. Host adapter 2 ((null)) found. Host adapter 3 (ata_piix) found. Host adapter 4 (ata_piix) found. Scanning SCSI subsystem for new devices and remove devices that have disappeared Scanning host 0 for SCSI target IDs 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15, LUNs 0 1 2 3 4 5 6 7 Scanning for device 0 2 0 0 .... OLD: Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: DELL Model: PERC H700 Rev: 2.30 Type: Direct-Access ANSI SCSI revision: 05 Scanning for device 0 2 1 0 ... OLD: Host: scsi0 Channel: 02 Id: 01 Lun: 00 Vendor: DELL Model: PERC H700 Rev: 2.30 Type: Direct-Access ANSI SCSI revision: 05 Scanning host 1 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning for device 1 0 3 1 ... OLD: Host: scsi1 Channel: 00 Id: 03 Lun: 01 Vendor: COMPELNT Model: Compellent Vol Rev: 0505 Type: Direct-Access ANSI SCSI revision: 05 Scanning host 2 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning host 3 for all SCSI target IDs, LUNs 0 1 2 3 4 5 6 7 Scanning for device 3 0 0 0 ... REM: Host: scsi3 Channel: 00 Id: 00 Lun: 00 DEL: Vendor: TEAC Model: DVD-ROM DV-28SW Rev: R.2A Type: CD-ROM ANSI SCSI revision: 05 Scanning host 4 channels 0 for SCSI target IDs 0, LUNs 0 1 2 3 4 5 6 7 0 new device(s) found. 1 device(s) removed. and sg_map -x /dev/sg0 0 0 32 0 13 /dev/sg1 0 2 0 0 0 /dev/sda /dev/sg2 0 2 1 0 0 /dev/sdb /dev/sg4 1 0 3 1 0 /dev/sdc I'm not sure what this all means...

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  • Are FC and SAS DAS devices standard enough?

    - by user222182
    Before I ask my questions, here is some background info that may or may not be useful: For the first time I find myself needing a DAS solution. My priority is data through-put in a single direction. I can write large blocks, and I don't need to read at the same time. The server (the data producing device) is not really a typical server, its a very powerful single board computer. As such I have limited options when it comes to the add-in cards I can install since it must use the fairly uncommon interface, XMC. Currently I believe I am limited PCIex8 gen 1 which means that the likely bottle neck for me will be this 16gbps connection. XMC Boards I have found so far offer the following connections: a) Dual 10GBE ethernet controller, total throughput 20gbps b) Dual Quad SAS 2.0 Connectors (SFF-8XXX) HBA (no raid), total throughput 48 gbps c) Dual FC 8gb HBA (no raid), total throughput 16gbps My questions for you guys are: 1) Are SAS and/or FC, and by extension their HBAs, standard enough that I could purchase a Dell or Aberdeen storage server with a raid controller that has external SAS or FC ports and expect that I can connect it to my SAS or FC HBA, be presented with a single volume (if I so configured the storage server), all without having to check for HBA compatibility? 2) On a device like a Dell PowerVault (either DAS or NAS) is there an OS on it to concern myself with, or is it meant to be remotely managed? Is there a local interface in case I cant remotely manage it (i.e. if my single board computer uses an OS not supported by Dell OpenManage). Would this be true of nearly any device which calls itself a DAS? 3) If I purchase some sort of Supermicro storage chassis, installed a raid controller with external connections, is there a nice lightweight OS I can run just for management of the controller? Would I even need an OS since the raid card would be configured pre-boot anyway? 4) It is much easier to buy XMC based 10gigabit ethernet cards (generally dual port). In what ways would I be getting into trouble by using iSCSI as a DAS are direct cabling with SFP+ cables? Thanks in advance

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