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Questions tagged [scsi]

Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices.

The physical SCSI interfaces - originally used to attach peripherals like disks, scanners and tape drives - have mostly been superseded by and .

The SCSI command set that was originally defined for (parallel) SCSI buses has been carried forward with minimal change for use with , , Serial Attached SCSI , and other transport layers.

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SCSI queue depth / command queue settings

I two servers with about 100 LUNs presented to each from an IBM V7000 (Storwize). Each LUN has 8 paths - 2 FC ports x 2 FC switches x 2 V7000 heads - so about 800 devices. Devices/paths are managed by multipathd. Whenever one of the FC switches or…
mapa3m
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Recover Data from RAID 1 : Array failed

I have a HP Proliant ML150 server with a scsi raid controller installed. Two disks are configured in RAID 1. My problem is when i start my computer, in the beginning, a message appears that the array is failed. This problem has occurred after a…
user2156353
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Log in to a single LUN of a target with iscsiadm (open-iscsi)?

Is it possible to connect to only a single LUN of an iscsi target when using iscsiadm? I have a target like "iqn.0000-00.iscsi.foo:bar" this target has 1000 LUN's. If I do iscsiadm -m node -l -T iqn.0000-00.iscsi.foo:bar then it connects to all the…
CR.
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rescan SCSI Disk Without Reboot

I installed/added 2 new disks on VMware. I executed this command and didn't detect any new disks: ls /sys/class/scsi_host/ | while read host ; do echo "- - -" > /sys/class/scsi_host/$host/scan ; done Is there other way to rescan vmw_pvscsi…
Gabriel Sousa
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Ultra slow LTO4 read/write (2-3MB/s) SCSI + LSI Ultra 320

So I've installed pcie SCSI card LSI Ultra 320 (which worked fine some time ago on Dell R710/ Dell 2950 with LTO3), during booting I have discovered that sync speed for LTO3 (ultrium 960) is only 40MB, also all speeds were ultra slow (100-106MB/min…
mike86
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Can't see other VHDs after detaching another. Azure Ubuntu VM

We have encountered high Disk IO on our Ubuntu 14.04 VM's running mongoDB. On Windows Azure. To solve this issue we have changed the VM size from A2 to A3 (to add the additional data discs) and attached 4 additional VHD and set them as raid10 which…
Dor
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external mSAS expansion

I got two servers. One with a Intel RS2MB044 and one with an Adaptec ASR-51245, both got an external mSAS connector. I need to connect these tho servers together, basically to share the file system like in a network share. I would like to use the…
Reno
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Gathering buslogic SCSI hardware and virtual machine operating system

I'm trying to use Powershell to get SCSI hardware from several virtual servers and get the operating system of each specific server. I've managed to get the specific SCSI hardware that I want to find with my code, however I'm unable to figure out…
Valrok
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lsass.exe error, Windows cannot boot

This is apocalypse. The server threw me an "lsass.exe" error this morning, saying that it cannot boot, with the following error. LSASS.EXE - System Error, security accounts manager initialization failed because of the following error: Directory…
Olivier Tremblay
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How to test SCSI drives faulty or not?

I have 10 scsi drives which are used. How do I test them to ensure they are working correctly? Some have red stickers presumably indicating they are faulty. The server I have access to is an IBM with ServeRAID 7k controller. The server has a…
sa555
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PowerEdge 2900. Want to use as a SAS wiping server, and skip Raid configuration for each drive. Possible?

I've got a Dell PowerEdge 2900 with 8 SAS slots in the front. I want to be able to load drives quickly without setting them up in RAID. We have a pile of about 50 SAS drives that need to be wiped. Is there any way to quickly get them seen by the OS…
Lifeling
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SAS/SCSI Errors in Syslog: Kernel FAILED

I have a Dell 2950 2U rackmount server with 3 146GB SAS drives in a RAID array, running Slackware 10.2 (an old version, I know). Recently I am seeing these errors in my /var/log/syslog repeating very often (constantly): kernel: FAILED kernel: …
Ezra Free
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replace SCSI raid controller with SATA on SBS 2003

Is it possible to add a second raid card (there is a second pci-x slot) that uses SATA and transfer the current contents of the SCSI card's HDDs to the new larger SATA HDDs Background: I bought 2 new 1 TB SATA drives and IDE <-> SATA converters…
mcgyvrfan121
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SCSI controller vs RAID controller

I have a Poweredge server which has a Ultra 160 SCSI controller, I was wondering if this has the ability to set the drives as RAID1 or 5? Is a SCSI & RAID controller generally the same thing?
unrealone1
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Is it possible to connect an HP 1760 SCSI Tape to a regular NON server board PC?

I own an Ultrium HP Tape 1760 SCSI, that used to reside on a Dell 2850, on an LSI SCSI card. That Server is now R.I.P. Sad to say. I want to connect the Tape to another PC, is it possible? What card do I need? A specific MOBO maybe? Ignoring the…
Saariko
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