Just started with UnRaid (and NAS in general to be honest). Having just moved over from Windows 10 to UnRaid 6 Plus I got warnings about one of my drives. A 2TB WD Green.

 

The warnings are in the subject, are they big problems? Is the drive about to fail on me?

 

From the http://192.168.11.20/Dashboard/New?name=sdd page I've got the following information.

 

Attributes

1	Raw read error rate	0x002f	200	200	051	Pre-fail	Always	Never	0
3	Spin up time		0x0027	188	163	021	Pre-fail	Always	Never	5583
4	Start stop count	0x0032	093	093	000	Old age	Always	Never	7331
5	Reallocated sector count	0x0033	200	200	140	Pre-fail	Always	Never	0
7	Seek error rate		0x002e	200	200	000	Old age	Always	Never	0
9	Power on hours		0x0032	072	072	000	Old age	Always	Never	20482 (2y, 4m, 1d, 10h)
10	Spin retry count	0x0032	100	100	000	Old age	Always	Never	0
11	Calibration retry count	0x0032	100	100	000	Old age	Always	Never	0
12	Power cycle count	0x0032	099	099	000	Old age	Always	Never	1718
192	Power-off retract count	0x0032	200	200	000	Old age	Always	Never	404
193	Load cycle count	0x0032	119	119	000	Old age	Always	Never	243420
194	Temperature celsius	0x0022	120	099	000	Old age	Always	Never	30
196	Reallocated event count	0x0032	200	200	000	Old age	Always	Never	0
197	Current pending sector	0x0032	001	001	000	Old age	Always	Never	65535
198	Offline uncorrectable	0x0030	200	200	000	Old age	Offline	Never	1
199	UDMA CRC error count	0x0032	200	200	000	Old age	Always	Never	0
200	Multi zone error rate	0x0008	200	200	000	Old age	Offline	Never	1

 

Identity

Model family:	Western Digital Green
Device model:	WDC WD20EARX-00PASB0
Serial number:	WD-WMAZA5026356
LU WWN device id:	5 0014ee 0ad76b377
Firmware version:	51.0AB51
User capacity:	2,000,398,934,016 bytes [2.00 TB]
Sector sizes:	512 bytes logical, 4096 bytes physical
Device:	In smartctl database [for details use: -P show]
ATA version:	ATA8-ACS (minor revision not indicated)
SATA version:	SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local time:	Sun Jan 3 14:47:44 2016 JST
SMART support:	Available - device has SMART capability.
SMART support:	Enabled
SMART overall-health:	Passed

 

Should I get concerned about this drive anytime soon? Is there something I can do about it?

I would be very worried about those numbers, especially the pending number, mostly because it is unbelievable. It just happens to be all ones in a 16-bit number so it seems like a bug rather than an actual count, perhaps a countdown from zero or something.

...

Having just moved over from Windows 10 to UnRaid 6 Plus...re something I can do about it?

Do you mean this disk was originally in Windows 10? Does the drive have any data on it? Did you preclear the drives you put in unRAID? Did you let unRAID format them?

Yeah, this disk was originally in Windows 10 and contains the vmdk's for 12 Virtual Machines currently. This disk is not in the array yet, I'm in the process of copying the data from it to a user share via the command prompt.

 

After than I was going to let unRAID format it. Should I pre-clear it once the data has been copied to a new disk?

 

Pre-clear would getting the files from http://lime-technology.com/forum/index.php?topic=2817.0 and then this plugin http://lime-technology.com/forum/index.php?topic=39985.0 I believe. I'll attempt that after the data is onto the new WD Blue 4TB.

 

Do you think a pre-clear would solve the problem perhaps?

Yes, I would try preclear to see if the numbers improve.

Sorry for the slow replies, keeping a 7 month away from the PC is hard work lol.

 

This drive is odd anyway, it shows 2 partitions but there should only be one. sdd1 and sdd2 but only sdd2 has data. And cfdisk only lists 1 too. Could be because it's currently GPT. Let's hope I get the pre-clear method right and that it improves numbers. I'll do that after the data has been moved.

 

It it doesn't improve numbers though, use it as a share for non-important data like movies etc maybe

It it doesn't improve numbers though, use it as a share for non-important data like movies etc maybe

 

If you mean using it as a share for less important data in Unraid in case its health doesn’t improve, that’s not a god idea, if any of your other disks fails you’ll need all other data disks + parity to be successfully read to rebuild it.

 

You could use it with unsigned devices plugin to hold non critical data outside of the array.

 

Thanks the advice so far.

 

While working I got this notification.

 

unRAID device sdd SMART message [197]: 2016-01-03 16:45
Notice [YGGDRASIL] - current pending sector returned to normal value
WDC_WD20EARX-00PASB0_WD-WMAZA5026356 (sdd)

 

And now current pending sector is 0, but Offline uncorrectable is still 1.

 

Put the WD Green into a caddy on my laptop and moving the data to a usb drive. cp in unRaid failed due to UTF8 file names. I suspect the pre-clear to take a while, and after this one... I have more drives (now all in my signature). But this was the only with an error in SMART.