WD10EADS WD Caviar Green - 1TB >> excessive Load Cycle Count

[shanaclan4]

You might want to consider the WDIDLE3 utility as documented here: http://www.readynas.com/forum/viewtopic.php?f=64&t=32319&p=184386&hilit=WDIDLE3#p184386

I am using different WD Caviar Green drives known to have high LCC issues and have run the WDIDLE3 to disable the Idle Park feature (IntelliPark). My LCCs are holding steady.

If you decide to tweak, let us know how you get on with the change.

[LukeS]

Check out my post about issues with the different versions of the WDIDLE3 utility before using it on WDxxEADS drives: viewtopic.php?f=84&t=34642&p=191490

[fmantek]

I am just coming about this thread, as i installed a few more WD Green drives (1.5TB) in a new NVX unit and saw that WD special bin i can download.

Now, on a NV+ unit, that is using 4 WD Green 1TB drives (all the same part numbers), i see the following (at the end):

11440 power on hours
684276 LLC count

That is an avg. of 60 LLCs per hour. So far the drives report no other issue (like sectors defect etc). They are just happy as can be.

Not sure if there was ever an official answer if the high LLC count is, in fact, a problem. But if so, it seems to take a while.

Frank

Model: WDC WD1000FYPS-01ZKB0
Serial: WD-WCASJ1740341
Firmware: 02.01B01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7741
Start Stop Count 108
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 11440
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 108
Power-Off Retract Count 139
Load Cycle Count 684276
Temperature Celsius 41
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 0
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

[BigBearf]

I was asked to post a "how to" regarding WDIDLE3 and WDTLER in a PM and figured I would post it for all.

@NAS-t

I would be glad to help. I believe you are in luck with the firmware that you have. I have 5 of the WD20EADS drives with this firmware. Four of them have required no WDTLER or WDIDLE3 fixes. Have you put these in your RN yet and monitored SMART status? Look particularly at Load Cycle Count (LCCs) escalation. I am at work right now but from the top of my head this is what I did.
1. Searched for WDTLER and WDIDLE3 fixes which are DOS apps.
2. Made a bootable DOS disk with both of these on it.
3. Connected the WD drive while still in caddy to old Windoze IDE motherboard using a IDE to SATA adapter that I got from Amazon for about $10. If you have a Windoze computer with a SATA connector you do not need this.

Here is a great link that I essentially followed.
http://forum.synology.com/enu/viewtopic ... 24&t=20907

Hope this helps.
bigbearf

[akeiler]

2. Made a bootable DOS disk with both of these on it.

Just to add:
I had good experienced using the Ultimate Boot CD (current Version 5):
Extract the ISO, add the WD Tools to the directory structure and recreate a custom ISO using the provided batch file. Burn to CD and boot from it.

Worked like a charm.

[seegersa]

Hi folks ... thought I would chime in here. I have 6 of these in my ReadyNAS PRO Pioneer ...

NAS is running fine - but I'm definitely going to be replacing these with approved 2TB drives eventually ...

Notice how the LCC issue seems to be apparent on those with the WD-WCAV* serial number?

Has anyone else noticed this?



SMART Information for Disk 1

Model: WDC WD10EADS-00M2B0
Serial: WD-WMAV50104862
Firmware: 01.00A01

Power On Hours 6043
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 260
Power-Off Retract Count 10
Load Cycle Count 2939
Temperature Celsius 34
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

SMART Information for Disk 2

Model: WDC WD10EADS-00M2B0
Serial: WD-WMAV50105031
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7433
Start Stop Count 2773
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 6043
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 260
Power-Off Retract Count 7
Load Cycle Count 2766
Temperature Celsius 34
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

SMART Information for Disk 3

Model: WDC WD10EADS-00M2B0
Serial: WD-WCAV50119621
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7175
Start Stop Count 614
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 4061
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 239
Power-Off Retract Count 13
Load Cycle Count 416681
Temperature Celsius 33
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

SMART Information for Disk 4

Model: WDC WD10EADS-00M2B0
Serial: WD-WMAV50115134
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7333
Start Stop Count 2763
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 6046
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 263
Power-Off Retract Count 11
Load Cycle Count 2752
Temperature Celsius 35
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

SMART Information for Disk 5

Model: WDC WD10EADS-00M2B0
Serial: WD-WCAV50111546
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7550
Start Stop Count 213
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 3595
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 211
Power-Off Retract Count 8
Load Cycle Count 371908
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

SMART Information for Disk 6

Model: WDC WD10EADS-00M2B0
Serial: WD-WCAV50365320
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 7150
Start Stop Count 45
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 704
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 43
Power-Off Retract Count 4
Load Cycle Count 69425
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

[b00st3d]

ughh...i wish i would have looked at the HCL and this site before buying drives!

ive only had my readynas duo for a few months with 2 WD10EADS drives and already my LCCs are extremely high!

Disk 1 WDC WD10EADS-65P6B0 931 GB , 41 C / 105 F , Write-cache ON OK
Disk 2 WDC WD10EADS-19M2B0 931 GB , 41 C / 105 F , Write-cache ON OK

Disk 1: Load Cycle Count 103101
Disk 2: Load Cycle Count 97493

[b00st3d]

Just an update...8 months later still using the drives and still counting up the LCCs!

Disk1 Load Cycle Count 384986
Disk2 Load Cycle Count 371219

No problems so far...knock on wood.