Read errors on disk 5 - SMART short self-test: passed


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Greetings UNRAID community. I received the status report below via my email notifications. Disk 5 is active and seems to be working fine, but there are read errors documented in the attached log file. A smart short self-test passed. Do I need to stop and restart my array/dig deeper into the operation of disk 5 further? It's only ~3 months old or so. It's under warranty if I need to replace it. I believe what precipitated this was my UPS inexplicably powered off a few days ago. Parity was rechecked successfully after the UPS turned itself off.  There was no power outage with our electrical grid so not sure why the UPS powered off (working on that with CyberPower to figure out what happened there).


Here's the emailed report:

Event: Unraid Status
Subject: Notice [TOWER] - array health report [FAIL]
Description: Array has 7 disks (including parity & cache)
Importance: warning

Parity - WDC_WD120EMFZ-11A6JA0_9RJ5LLHC (sde) - active 32 C [OK]
Disk 1 - WDC_WD120EMAZ-11BLFA0_8CK40JJE (sdd) - active 32 C [OK]
Disk 2 - ST8000VN0022-2EL112_ZA1AMVH3 (sdg) - active 35 C [OK]
Disk 3 - WDC_WD120EMAZ-11BLFA0_8CJWDE6E (sdf) - active 34 C [OK]
Disk 4 - WDC_WD120EMFZ-11A6JA0_9JHG38XT (sdc) - active 29 C [OK]
Disk 5 - WDC_WD120EMFZ-11A6JA0_XJG0KLNM (sdi) - active 34 C (disk has read errors) [NOK]
Cache - Samsung_SSD_860_EVO_1TB_S3Z8NB0K301204A (sdj) - active 36 C [OK]

Parity is valid
Last checked on Thu 29 Oct 2020 01:02:56 PM CDT (2 days ago), finding 0 errors.
Duration: 1 day, 37 minutes, 28 seconds. Average speed: 135.4 MB/s



Here's my UNRAID server build:

MB: ASRock E3C246D4U

CPU: Xeon E-2288G

CPU cooler: Noctua NH-U9S CPU Cooler

RAM: x2 M391A4G43MB1-CTD - Samsung 32GB DDR4-2666 ECC UDIMM PC4-21300V-E Dual Rank x8 Module

PSU: RM Series™ RM850 — 850 Watt 80 PLUS® Gold Certified Fully Modular PSU

Storage: x5 12TB WD Easystor (shucked Red/white label NAS drive), 1x 8TB Seagate Iron Wolf

Case: Silverstone CS380

Case cooling: 3x Noctua NF-F12s

Cache: SAMSUNG 860 EVO Series 2.5" 1TB SATA III V-NAND 3-bit MLC Internal Solid State Drive (SSD)

Edited by realdiel
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