abhi.ko Posted April 22 Share Posted April 22 (edited) I woke up to a disk with read errors today. Here is what is on the disk smart error log: ATA Error Count: 1 CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days. Error 1 occurred at disk power-on lifetime: 58269 hours (2427 days + 21 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- 60 00 00 f8 83 3f 40 00 16d+08:16:05.319 READ FPDMA QUEUED 60 00 00 f8 7f 3f 40 00 16d+08:16:02.537 READ FPDMA QUEUED 60 b8 00 40 7d 3f 40 00 16d+08:16:02.536 READ FPDMA QUEUED 60 d0 00 70 79 3f 40 00 16d+08:16:02.529 READ FPDMA QUEUED 60 00 00 70 75 3f 40 00 16d+08:16:02.528 READ FPDMA QUEUED Could someone please help me understand what this means? If this is critical enough to warrant a disk replacement. I recently had a lot of reads from and writes to this disk (and a few other ones) for converting FS from reiserfs to xfs. This disk was a reiserfs disk until last week, just converted it to xfs, I'm not sure if that is what caused this to have the error. All help is appreciated. I am basically trying to understand whether I'm risking the disk failing so, should be prepared with a replacement, or is there anything I should do to prevent these errors. Edited April 22 by abhi.ko Quote Link to comment
JorgeB Posted April 22 Share Posted April 22 Please post the complete diagnostics. Quote Link to comment
abhi.ko Posted April 22 Author Share Posted April 22 12 minutes ago, JorgeB said: Please post the complete diagnostics. Sorry here you go. tower-diagnostics-20240422-1235. Quote Link to comment
JorgeB Posted April 22 Share Posted April 22 It's also logged in the syslog as a disk problem, though the UNC @ LBA 0 doesn't make much sense, I would run an extended test on the disk. Quote Link to comment
abhi.ko Posted April 22 Author Share Posted April 22 1 hour ago, JorgeB said: It's also logged in the syslog as a disk problem, though the UNC @ LBA 0 doesn't make much sense, I would run an extended test on the disk. Thanks for taking a look, disabled spin down delay and just kicked an extended test off. Will report back once done. Quote Link to comment
abhi.ko Posted April 24 Author Share Posted April 24 It never completed I don't think. was stuck at 20% for over a day and then I refreshed the page, it shows a completed without error under Last SMART Test Result. tower-diagnostics-20240423-1903.zipNew diagnostics attached. Quote Link to comment
Solution JorgeB Posted April 24 Solution Share Posted April 24 SMART test passed so the disk should be OK for now, keep monitoring, you can also replace/swap cables to rule that out if more errors occur. 1 Quote Link to comment
abhi.ko Posted April 24 Author Share Posted April 24 Thank You, just for learning purposes - what in the diagnostics file shows that SMART test passed for disk 9. I do have another disk - disk 1 with udma crc errors which I think might be related to cables or the controller. Quote Link to comment
JorgeB Posted April 24 Share Posted April 24 The SMART report for that disk, this part: SMART Extended Self-test Log Version: 1 (1 sectors) Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed without error 00% 58305 - Quote Link to comment
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