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Forum Discussion
blacey
Sep 29, 2012Aspirant
3 drive failures w/in 10 days of 4.2.22 upgrade? #19570015
Within two days of upgrading my Ultra 6 with 6 2 TB drives in it to 4.2.22, it marked a drive dead. I always keep a spare so I swapped the drive out and completed a cross-ship RMA with Seagate. Befo...
StephenB
Oct 14, 2012Guru - Experienced User
If you have a tool that reads SMART parameters, you could also confirm the spin retry counts while it is connected to the PC. Acronis Drive Monitor is one freeware tool that does this. Note Seatools will not show you the SMART report.
Anyway, one potential response is to turn off disk spin-down (if it is on now). Or just keep a close eye on the drives. Either way, you should be diligent on backing up critical data (that is always true, but even more important if you have drives that are starting to report problems).
Understood. However, it is actually similar to finding out that multiple wheels in your auto need new brakes or wheel bearings at the same time. 4 of the 5 disks were installed together, and have been "driven" in the same NAS under identical conditions. That is one reason for the repeated mantra "RAID is not a substitute for backup". Multiple drive failures in RAID arrays are more common than you might think.
spider2009 wrote: It just seem very unlikely, that five out of six disks experience the same problem, at exactly the same time, after a few days of the latest firmware had been installed.
Anyway, one potential response is to turn off disk spin-down (if it is on now). Or just keep a close eye on the drives. Either way, you should be diligent on backing up critical data (that is always true, but even more important if you have drives that are starting to report problems).
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