Hard Drive Statuses

Viper007Bond

Viper007Bond

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This is mostly for TechZ.

Here's the status of the WD Greens in my oldest NAS. The load cycle counts seem insanely high. Should I be worried?

SMART Information for Disk 1

Model: WDC WD20EARS-00MVWB0
Serial: WD-XXXXX
Firmware: 51.0AB51

SMART Attribute

Raw Read Error Rate 2
Spin Up Time 975
Start Stop Count 52
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 26301
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 47
Power-Off Retract Count 46
Load Cycle Count 1661865
Temperature Celsius 34
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 4

ATA Error Count 0

Extended Attribute

Hot-add events 0
Hot-remove events 0
Lp stat events 9
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
Click to expand...

SMART Information for Disk 2

Model: WDC WD20EARS-00MVWB0
Serial: WD-XXXXX
Firmware: 51.0AB51

SMART Attribute

Raw Read Error Rate 0
Spin Up Time 983
Start Stop Count 51
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 26302
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 46
Power-Off Retract Count 45
Load Cycle Count 1819832
Temperature Celsius 38
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 2

ATA Error Count 0

Extended Attribute

Hot-add events 0
Hot-remove events 0
Lp stat events 3
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
Click to expand...

SMART Information for Disk 3

Model: WDC WD20EARS-00MVWB0
Serial: WD-XXXXX
Firmware: 51.0AB51

SMART Attribute

Raw Read Error Rate 0
Spin Up Time 6575
Start Stop Count 51
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 26300
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 46
Power-Off Retract Count 45
Load Cycle Count 1697498
Temperature Celsius 38
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0

ATA Error Count 0

Extended Attribute

Hot-add events 0
Hot-remove events 0
Lp stat events 12
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
Click to expand...

SMART Information for Disk 4

Model: WDC WD20EARS-00MVWB0
Serial: WD-XXXXX
Firmware: 51.0AB51

SMART Attribute

Raw Read Error Rate 0
Spin Up Time 6425
Start Stop Count 51
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 26298
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 46
Power-Off Retract Count 45
Load Cycle Count 1679455
Temperature Celsius 36
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0

ATA Error Count 0

Extended Attribute

Hot-add events 0
Hot-remove events 0
Lp stat events 152
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
Click to expand...
 
Last edited:
Well, that's the thing with the "green" HDDs: they spin down after a shorter time than others which are built for NAS-systems so the average consumption gets lowered.

I don't have a NAS which runs every time, but there should be plenty of field reports of people using green HDDs in NAS-systems.
 
narf said:
That's roughly one load cycle per minute... do you have shell access to your NAS?
Click to expand...

He never listens to me... I sent him a mail back in 2011 when he got the WD Greens about the same time I did. :rolleyes:

date: 14 March 2011 00:35
subject: Step by Step: Changing the IDLE on WD Greens
Click to expand...

Look at my LCC (we both have Netgear NASs)

xaFhpid.jpg
 
Changing the idle times is one way... another would be to stop doing IO once per minute despite nobody using the NAS.
 
I'm seeding off of it so I wouldn't be surprised if it gets read from from time to time.

Anyway, oops, yes I'm an idiot, TechZ. I'll go find that email. :(
 
Ah, in that case getting rid of idle-time IO is probably going to be pointless... setting the head unload timer to >>1min it is :nod:
 
Western Digital Green drives aren't designed for NAS, they're basically used for basic storage installed into a desktop.
They do have HDD designed for NAS and it's called Western Digital Red.
http://www.wdc.com/en/products/products.aspx?id=810
Have 2 of these Red drives in my desktop used as storage and I find they're better than my green drives. Also it has 3 year warranty, the green only has 2 years.
 
I'm not a fan of the Reds. I've had to RMA them four times (I bought three).

If you're replacing a NAS I'd recommend FreeNAS. It's easy and ZFS is the cool beans of the filesystem world right now.
 
I actually have four 4TB Western Digital Reds sitting in a box behind me right now waiting on a new Synology NAS to arrive (stupid FedEx). Once I have that up and running I'll dump all of the contents off the old NAS and retire it until I run out of space again.

Reds did not exist when I built either of my two previous NASes.

In addition to the four Greens mentioned above, I have a second set of greens in an existing Synology NAS. I've run extensive multi-hour SMART tests on them and they all report healthy so I think I'm lucky there. I'll still yank them out and tweak the settings to disable low power mode though. They're only at 150,000 load cycles rather than 1.7 million.

I have three more greens in my desktop. I should probably disable load cycling on those too while I'm at it...
 
Finally had a chance to change the park time from 8 seconds to 300 seconds on the four EARS drives in my old ass NAS. Their cycle counts are at like 1.8 million though and they are only rated at 300k so I'm going to retire them until I run out of room (again). Then I can put stuff I don't care about there.

I also changed it on the two EARS drives I have in my desktop. Their cycle times are about 800k and 900k. Not good. I might proactively replace them.

I have four EZRX drives in my second NAS but WDIDLE3 reports that the setting is flat out disabled on them. The Load Cycle Count value is 150k to 200k though which is odd. They'd been powered on for nearly 2 years though so they're not blowing through LLC like the old NAS was. Still seems bad though.

My third NAS is running WD Red drives so the LLC is only like 50 for those. :)
 
Those *&$%#?? WD Greens are a bit of dog. One them failed on me.
 
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