Hey all,

 

Had a SMART error on a drive but I have no experience with it and I'm hoping someone can help me out here.

Error:
 

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: 20466 hours (852 days + 18 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 53 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

  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 58 ff ff ff 4f 00      07:44:52.025  READ FPDMA QUEUED
  60 00 d0 ff ff ff 4f 00      07:44:52.025  READ FPDMA QUEUED
  60 00 40 ff ff ff 4f 00      07:44:52.025  READ FPDMA QUEUED
  60 00 40 ff ff ff 4f 00      07:44:52.025  READ FPDMA QUEUED
  60 00 70 ff ff ff 4f 00      07:44:52.025  READ FPDMA QUEUED

 

I did look around the forum and saw there was an option to run an extended SMART test which finished with no error:

Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%     21396         -

 

Full report attached.

Any idea here? Should I be worried or is this just a one off?

Thanks!

homeserver2-smart-20241113-1329.zip

Since the test passed the disk is OK for now, but keep monitoring, attachments are not currently working so we cannot see the attributes.