A routine scrub last night generated the "One or more devices has experienced an error resulting in data corruption. Applications may be affected."
Drives in the pool are are online and smartctl shows no errors on any of the drives. Output of "zpool status -v" is below, and as you can see there are several checksum errors but no read or write errors.
A few questions:
Running FreeNAS-11.0-U1 (aa82cc58d) on a SuperMicro SC846E16-R1200B with BPN-SAS2-846EL1, X8DTE-F and 48GB (12x 4GB PC3-10600R) 2x Intel Xeon E5640 Quad Core
Drives in the pool are are online and smartctl shows no errors on any of the drives. Output of "zpool status -v" is below, and as you can see there are several checksum errors but no read or write errors.
A few questions:
- This seems like it has to be a memory corruption error, right? But I'm using ECC RAM ... is that even possible? I did run memtest when the server was installed, but that was a few years ago.
- Can I trust zpool when it says that the data corruption is confined to "volume1/testzvol"? It is a 30TB array, and I'd really prefer not to restore the whole thing from backup if I don't have to
- What the heck do I do now?
Running FreeNAS-11.0-U1 (aa82cc58d) on a SuperMicro SC846E16-R1200B with BPN-SAS2-846EL1, X8DTE-F and 48GB (12x 4GB PC3-10600R) 2x Intel Xeon E5640 Quad Core
Code:
pool: volume1 state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://illumos.org/msg/ZFS-8000-8A scan: scrub repaired 148K in 29h21m with 2 errors on Mon Jan 22 05:21:35 2018 config: NAME STATE READ WRITE CKSUM volume1 ONLINE 0 0 2 raidz3-0 ONLINE 0 0 4 gptid/ef32b9b5-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/eff4c195-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/f0b1e9d0-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 3 gptid/f1765d4c-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 7 gptid/f23b41b9-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/f2fd6619-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/f3c44866-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 6 gptid/f4861cf1-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 8 gptid/f55a468b-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/f614933a-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 0 gptid/f6d98ade-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 5 gptid/f79ba1a6-9173-11e5-8ee5-0025906b9b9a ONLINE 0 0 8 errors: Permanent errors have been detected in the following files: volume1/testzvol:<0x1>
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