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Questions tagged [sas]

Serial Attached SCSI (SAS) is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives. SAS depends on a point-to-point serial protocol that replaces the parallel SCSI bus technology that first appeared in the mid 1980s in data centers and workstations, and it uses the standard SCSI command set.

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HP ProLiant DL380 G5 - Use without Raid Controller?

I have just acquired a ProLiant DL380 G5 server and I need to use the pcie slots so I want to remove the raid controller. Problem is I can't find any connector on the motherboard that I can connect the drive to. I only need 1 drive and in fact I…
seanbw
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Solaris Multipathed I/O - Physically Removing a Disk

I am a Solaris newbie. I have a Solaris 10u8 machine that is running an attached J4400 and some internal drives. We're using multipathed SAS I/O (stmsboot; mpathadm), so the device mount points have been moved off from their normal c0t5d0 to long…
Karl Katzke
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How do I test SAS HDD connected to HP Smart Array P410i controller?

My client is getting a used HP Proliant DL360 G6 server and I want to make sure that it's safe to use this server further in production. I've tested RAM using GoldMemory (results are OK), and now I'm lost searching for a way to test hard drives. At…
real_sm
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Four lane SFF-8088 to SFF-8470 cable, 6G/12G

I need a couple of SFF-8088 to SFF-8470 cables and the HP manual says the HP 408771-001 is the right one for me. My hardware dealer has them in stock for about 100$. I browsed a bit and found the HP AE466A for about a third of the price, but since…
Clayton Louden
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SAS expander card, not detecting DAS, is this supposed to work?

I have a similar sas expander HSTNM-B017 and when I connect an external DAS unit to it (HP StorageWorkd MSA50) nothing shows up in device manager or disk manager, as if its not connected. do you have to take the connection from the DAS -> SAS…
Hunter Brelsford
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mpt2sas failure fills syslog

I have a strange error message in the logs, which started like this: :39:35 host1 kernel: [54674279.243416] mpt2sas0: fault_state(0x2651)! :39:35 host1 kernel: [54674279.243543] mpt2sas0: sending diag reset !! :39:36 host1 kernel: [54674280.481215]…
Roman Susi
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HP Proliant DL360 G6 Maximum Logical Drives

I have an HP Proliant DL360 G6 server with 8 HD bays. Currently I have the first two bays working with ESXi and I'm just running RAID 0 on a single drive. This is not a production machine. It has a P410i Controller. I'm trying to add a third…
Kyle
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Max SAS throughput of a disk stack?

I've been trying to figure out something. I have a stack of SAS shelves (attached to a NetApp if that's relevant). Each devices within the shelf is 6G SAS. According to the vendor, the sustained transfer is somewhere around 200-250MB/sec. So -…
Sobrique
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Can I recover my raid after blown backplane / mobo?

We had a catastrophic server failure the other day. The server was the head to our NAS. Multiple disk shelves were attached via SAS (SFF-8088 to a HP Smart Array RAID Card). Also connected to the RAID card was a shelf of disks on the head server…
0xhughes
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SFF-8087 cable and connector variations causing fault?

I recently bought a set of 6 cables to connect my LSI MegaRAID card to my Norco-4224 backplane. The connector on both ends is SFF-8087. However, when they arrived, the disks would not be detected. I thought the cable was faulty, but I tried all 6…
tudor -Reinstate Monica-
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Are FC and SAS DAS devices standard enough?

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…
Jay
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Can Dell PE 1950 with SAS Controller take SATA drive?

I am a programmer (not an expert hardware engineer) trying to build a small hadoop cluster at home (at a cheaper price point) for processing some datasets of interest. I am getting these Dell PE 1950 boxes…
Atul Kulkarni
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HP ProLiant with SATA/SAS Drives

I Currently have a DL350 G5. I have 4 74GB SAS drives in RAID that work fine but I tried to add a 1TB WD RED SATA drive for some storage and the RAID controlling isn't giving me an option to create a new logical disk. At first I thought it might be…
Douglas Francis
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Format SAS drives HP DL360G6

hoping you can point me in the right direction here. I scored an older HP DL 360G6 and have been having issues installing ESXi. After a bit of searching around a few people suggested completely formatting the drives and then re-creating the arrays…
Stumped
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GNU/Linux: SAS-disk detected as /dev/sg7 - not as /dev/sdb

I have just installed a SAS disk into a Debian server. It was detected correctly and everything was fine. Then I moved the SAS disk to a different Debian server, the same hardware model and running same version of Debian, but here the SAS disk is…
Ole Tange
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