Backplane problems

Fritz

Well-Known Member
Apr 6, 2015
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Just had a second Supermicro SAS2 backplane screw the pooch. It's a BPN-SAS2-846EL1. Mode of failure is drives start dropping out at random. A reboot brings them back.
Several months ago I lost one in another chassis, same model, and it died completely, no drives detected at all.

Is there a common failure component on these backplanes? are they repairable?

TIA
 

Sean Ho

seanho.com
Nov 19, 2019
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seanho.com
Sorry to hear about that! Check the Molex power connection? 8087 cables? HBA? Do the drives work fine bypassing the backplane, e.g. using 8087-4x8482 forward breakout cables? Try the faulty backplane in another chassis?
 

Fritz

Well-Known Member
Apr 6, 2015
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Drives are fine. I put them in another chassis and no problems.

The first one that failed completely I replaced with a eBay one. The second I replaced with a spare SAS backplane which is a less than ideal solution.

I still have both backplanes so now I'm looking for a fix.