Is this drive toast?

[claira]

Array was fine.  Drive dropped out overnight. Parity was confirmed 2 days ago.  Rebuilding now with hot spare while i analyse the drive.  The bad drive dropped completely out of unraid.  had to reboot to get it to register again.  

 

5:57 AM (6 hours ago)

Subject: Alert [UNRAID] - Disk 4 in error state (disk dsbl)

 

Drive is reporting:

 

#	Attribute Name	Flag	Value	Worst	Threshold	Type	Updated	Failed	Raw Value
1	Raw read error rate	0x000f	116	099	006	Pre-fail	Always	Never	104747256
3	Spin up time	0x0003	091	090	000	Pre-fail	Always	Never	0
4	Start stop count	0x0032	100	100	020	Old age	Always	Never	382
5	Reallocated sector count	0x0033	100	100	010	Pre-fail	Always	Never	0
7	Seek error rate	0x000f	068	060	030	Pre-fail	Always	Never	189277484011
9	Power on hours	0x0032	088	088	000	Old age	Always	Never	11052 (1y, 3m, 5d, 12h)
10	Spin retry count	0x0013	100	100	097	Pre-fail	Always	Never	0
12	Power cycle count	0x0032	100	100	020	Old age	Always	Never	21
183	Runtime bad block	0x0032	100	100	000	Old age	Always	Never	0
184	End-to-end error	0x0032	100	100	099	Old age	Always	Never	0
187	Reported uncorrect	0x0032	099	099	000	Old age	Always	Never	1
188	Command timeout	0x0032	100	100	000	Old age	Always	Never	0
189	High fly writes	0x003a	100	100	000	Old age	Always	Never	0
190	Airflow temperature cel	0x0022	055	048	045	Old age	Always	Never	45 (min/max 43/46)
191	G-sense error rate	0x0032	100	100	000	Old age	Always	Never	0
192	Power-off retract count	0x0032	098	098	000	Old age	Always	Never	4226
193	Load cycle count	0x0032	088	088	000	Old age	Always	Never	24988
194	Temperature celsius	0x0022	045	052	000	Old age	Always	Never	45 (0 21 0 0 0)
195	Hardware ECC recovered	0x001a	116	099	000	Old age	Always	Never	104747256
197	Current pending sector	0x0012	074	074	000	Old age	Always	Never	8696
198	Offline uncorrectable	0x0010	074	074	000	Old age	Offline	Never	8696
199	UDMA CRC error count	0x003e	200	200	000	Old age	Always	Never	0
240	Head flying hours	0x0000	100	253	000	Old age	Offline	Never	6869 (0 67 0)
241	Total lbas written	0x0000	100	253	000	Old age	Offline	Never	72143411515
242	Total lbas read	0x0000	100	253	000	Old age	Offline	Never	834024704853

 

 

I like to pull drives from 8tb seagate externals, I have 10 of these in my system with 2 parity, 6 data, 2 hot spare.  They are all ST8000AS0002 drives, meaning not the greatest drives.  I have seen this happen 5 time in the last 2 years to drives.  I warranted them 3 of them.  The other 2 I have also had this happen on a smaller scale, only 1 or 2 uncorrectable offline sectors and simply removed them from the array.  Ran a SMART test.  A few preclears and then used them again.

 

I am not sure what constitutes a through it away.  Warranty is almost over on many of these.  I may start replacing with better quality drives.

 

Does anyone have an opinion on whether better drives are worth it?  With dual parity and hot sparse at the ready.  Do I need to look at higher quality drives?

 

I suspect the NAS type drive might not drop out of the system in this scenario.  Any opinions?

[SSD]

Yes - your pending sectors are very high. Would look to replace ASAP.

 

If in doubt, you could try to run a SMART extended test or play with preclear. But I would not bother.

 

Your choice of drives is up to you. Parity is pretty good protection from a failed drive if you are keeping up with drive maintenance. But I would be wary to put weak drives in a server. I think HGSTs are the best, most reliable drives. Price is not always the best indicator of drive longevity.

 

With so many failures I wonder if you are having issues with heat (I like to keep drives under 45C, and looks like you are pretty good there). Excessive vibration could be an issue. Or high temperature variation. Or maybe just bad luck.