Major problems with my Supermicro server

A

ashman

Gawd
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Mar 28, 2011
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Ever since I got my Supermicro server I've been having issues. I am running the latest version of unRAID on it and I had to move the HBA to an 8x slot, in doing so the cable connected to the rear backplane was barely long enough so there was a lot of tension on it, this caused issues and I had three drives drop out of the array. I ordered a new cable from Amazon that was more then long enough, did a new config and then a parity check, about 60-70% into the parity check my second parity drive and a data drive drop off the array. Both of these drives are on the rear backplane and both are 8TB drives. Before I switched my hardware to this new server I never had issues like this, but then I was using a an ARC 1280ML 16 port raid controller (in JBOD mode) and a SAS2LP controller for the remaining 8 drives. Anyway, I am uploading my unRAID diagnostics. I can't believe I would have the bad luck of two drives failing at the same time. Also, the drives on the rear of the server (this is a 36 bay chassis, 24 on front and 12 on the back) are in different drive sleds than those on the front, for what it's worth, I don't think that matters but I am mentioning it anyway. The advice I have been given on the unRAID forum is to perhaps try an LSI based controller so I am thinking IBM M1015 in IT mode.

Thoughts?
 

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I am uploading unRAID diags after I rebooted, it indeed looks like my second parity drive has failed, however the failed data disk looks ok.
 

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If there was enough tension in the previous cabling it is possible you damaged the SFF connectors themselves possibly stress fractures in the solder points on the connectors on either or both ends. If you can, move the drives to another backplane and see if the problems follow the drives, or stay in the same slots.
 
I can't move the drives to another backplane, I have 30 drives and the front 24 slots are full. I could move the rear backplane cable to another port in case I damaged the one port I have been using. I am attaching a diagram of the backplanes as I have them connected. Also, don't you think if I had damaged the backplane we would see more errors?
 

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  • supermicro backplane.png
    supermicro backplane.png
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Which backplane do you have on the chassis? Your picture has conflicting information. Are you absolutely sure you have a BPN-SAS2-846EL1 and not a BPN-SAS-846EL1 (what a 847E1 chassis has)? The SAS2 backplane is a lot less common (and far more expensive) than the SAS one. The SAS one has issues with drives over 2TB, so I'm guessing that's what you have and the reason you're experiencing issues.
 
These are all the drives and devices in my server according to unRAID, as you can see there are two entries for the enclosure that list SAS2:

[0:0:0:0] disk Lexar JumpDrive 1.00 /dev/sda 8.02GB
[1:0:0:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdb 3.00TB
[1:0:1:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdc 3.00TB
[1:0:2:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdd 3.00TB
[1:0:3:0] disk ATA WDC WD30EFRX-68E 0A82 /dev/sde 3.00TB
[1:0:4:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdf 3.00TB
[1:0:5:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdg 3.00TB
[1:0:6:0] disk ATA ST3000DM001-1CH1 CC27 /dev/sdh 3.00TB
[1:0:7:0] disk ATA ST4000DM000-1F21 CC54 /dev/sdi 4.00TB
[1:0:8:0] disk ATA ST4000DM000-1F21 CC54 /dev/sdj 4.00TB
[1:0:9:0] disk ATA TOSHIBA DT01ACA3 ABB0 /dev/sdk 3.00TB
[1:0:10:0] disk ATA WDC WD30EZRZ-00Z 0A80 /dev/sdl 3.00TB
[1:0:11:0] disk ATA WDC WD30EFRX-68A 0A80 /dev/sdm 3.00TB
[1:0:12:0] disk ATA ST3000DM001-1CH1 CC27 /dev/sdn 3.00TB
[1:0:13:0] disk ATA WDC WD20EZRX-00D 0A80 /dev/sdo 2.00TB
[1:0:14:0] disk ATA ST4000DM005-2DP1 0001 /dev/sdp 4.00TB
[1:0:15:0] disk ATA ST4000DM005-2DP1 0001 /dev/sdq 4.00TB
[1:0:16:0] disk ATA WDC WD30EZRZ-00Z 0A80 /dev/sdr 3.00TB
[1:0:17:0] disk ATA WDC WD30EFRX-68E 0A82 /dev/sds 3.00TB
[1:0:18:0] disk ATA ST8000AS0002-1NA AR17 /dev/sdt 8.00TB
[1:0:19:0] disk ATA ST8000AS0002-1NA AR17 /dev/sdu 8.00TB
[1:0:20:0] disk ATA ST8000AS0002-1NA AR17 /dev/sdv 8.00TB
[1:0:21:0] disk ATA ST4000DM000-1F21 CC51 /dev/sdw 4.00TB
[1:0:22:0] disk ATA ST4000DM000-1F21 CC54 /dev/sdx 4.00TB
[1:0:23:0] disk ATA ST4000DM000-1F21 CC54 /dev/sdy 4.00TB
[1:0:24:0] enclosu LSI CORP SAS2X36 0717 - -
[1:0:25:0] disk ATA TOSHIBA DT01ACA3 ABB0 /dev/sdz 3.00TB
[1:0:26:0] disk ATA WDC WD30EZRZ-00Z 0A80 /dev/sdaa 3.00TB
[1:0:27:0] disk ATA WDC WD50EFRX-68L 0A82 /dev/sdab 5.00TB
[1:0:28:0] disk ATA ST8000VX0002-1Z6 AV01 /dev/sdac 8.00TB
[1:0:29:0] disk ATA ST5000DM000-1FK1 CC41 /dev/sdad 5.00TB
[1:0:30:0] enclosu LSI CORP SAS2X28 0717 - -
 
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