Unhealthy Pool with Checksum errors

TrueNAS General
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Its late and I got a notification email from TrueNAS saying something was wrong. I checked the system and it wouldn’t specify to me what was wrong in the pool. I check the pool status and see that a SCRUB is going so I think its the automatic scrub but its saying drive 1 has 12 checksum errors but no read or write errors. Now the drive is getting old at around 75000 hours and probably will need to replace it very soon but are checksum errors anything to worry about? Do I need to do anything as of right now? From what I’ve read, checksum errors have something to do with a file I think but I could be wrong.

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Due to the age of the drive you have a pending sector, which is likely what has caused the issue; how old is the smart test that provided you the data? Which type of test was (long, short, etc…)?
Wait until the scrub is complete, then post the output of zpool status HomeNAS.

Please post your full hardware configuration.

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Start shopping for a replacement before the next one goes :wink:

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FWIW, this is why we use ZFS.

ZFS just protected you from bitrot.

The drive is starting to fail. It’s very very old at 8.5 years power on!

So, time to replace it.

The good news is you have RaidZ2 and pending sectors just mean that the drive can’t retrieve the data written to that sector.

About the best failure.

So, buy a replacement. Burn it in. Then replace the failing drive.

Or ignore it if you want. I wouldn’t.

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Hardware is a Dell T430 with 2x Xeon E5-2620v4, 160GB of RDIMM ECC Ram, Dell H730 Perc card running IT mode.
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