performance with WDC WD15EARS-00Z5B1

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performance with WDC WD15EARS-00Z5B1

Postby elessar » Mon Mar 29, 2010 7:15 am

Hello

i have 4 of these WDC WD15EARS-00Z5B1 1,5TB disks fitted in it.

at the first times use they were working very fine, with good speeds..

lately after the factory default restore due to the problems got with the installation of the plugins, i noticed that the speed of the transfer were incredibly slow.

i cannot get more than 25Mb per sec with any method (ftp, afp, smb).

there are documented issues with these drives?
no errors on the smart report of the disks, no errors on packet transmissions, jumbo frames are activated, all my gear is NETGEAR rig READYNAS PRO - GS108GE switch also tried with a GS108T with no difference.

i am suspecting that all the annoyances are produced by the drives that the vendor fitted in it.
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Re: performance with WDC WD15EARS-00Z5B1

Postby mdgm » Mon Mar 29, 2010 7:19 am

elessar wrote:i am suspecting that all the annoyances are produced by the drives that the vendor fitted in it.

Let me get this straight. The reseller sold you the NAS with those drives in it? imo they are very poor. Any reseller worth buying from should fit drives from the HCL if they are going to fit any drives at all.

Since your drives are not on the compatibility list they could well be the issue.

Have you been noticing ATA errors or a Load Cycle Count increasing rapidly?
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Re: performance with WDC WD15EARS-00Z5B1

Postby elessar » Mon Mar 29, 2010 7:47 am

Code: Select all
SMART Information for Disk 1

Model:    WDC WD15EARS-00Z5B1
Serial:    WD-WMAVU1641539
Firmware:    80.00A80

SMART Attribute
   
Raw Read Error Rate   0
Spin Up Time   5825
Start Stop Count   174
Reallocated Sector Count   0
Seek Error Rate   0
Power On Hours   519
Spin Retry Count   0
Calibration Retry Count   0
Power Cycle Count   56
Power-Off Retract Count   14
Load Cycle Count   27913
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 WD15EARS-00Z5B1
Serial:    WD-WMAVU1684999
Firmware:    80.00A80

SMART Attribute
   
Raw Read Error Rate   0
Spin Up Time   5491
Start Stop Count   172
Reallocated Sector Count   0
Seek Error Rate   0
Power On Hours   517
Spin Retry Count   0
Calibration Retry Count   0
Power Cycle Count   54
Power-Off Retract Count   14
Load Cycle Count   30480
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 3

Model:    WDC WD15EARS-00Z5B1
Serial:    WD-WMAVU1639607
Firmware:    80.00A80

SMART Attribute
   
Raw Read Error Rate   0
Spin Up Time   5675
Start Stop Count   171
Reallocated Sector Count   0
Seek Error Rate   0
Power On Hours   516
Spin Retry Count   0
Calibration Retry Count   0
Power Cycle Count   54
Power-Off Retract Count   13
Load Cycle Count   29494
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 WD15EARS-00Z5B1
Serial:    WD-WMAVU1698519
Firmware:    80.00A80

SMART Attribute
   
Raw Read Error Rate   0
Spin Up Time   5583
Start Stop Count   209
Reallocated Sector Count   0
Seek Error Rate   0
Power On Hours   516
Spin Retry Count   0
Calibration Retry Count   0
Power Cycle Count   54
Power-Off Retract Count   13
Load Cycle Count   29650
Temperature Celsius   32
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


it's clear now that are the disks.

i have not looked at the HCL until now.. and looking around the web, seems that those drives have strange problems often with other nas appliances and some OS like win7 and vista.

i think that i have to ask a drive replacement to the vendor that sold me the ReadyNas Pro Business edition.
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Re: performance with WDC WD15EARS-00Z5B1

Postby elessar » Mon Mar 29, 2010 7:56 am

mdgm wrote:
elessar wrote:i am suspecting that all the annoyances are produced by the drives that the vendor fitted in it.

Let me get this straight. The reseller sold you the NAS with those drives in it? imo they are very poor. Any reseller worth buying from should fit drives from the HCL if they are going to fit any drives at all.

Since your drives are not on the compatibility list they could well be the issue.

Have you been noticing ATA errors or a Load Cycle Count increasing rapidly?


Yes, the reseller sold me the unit with these drives.

I have written to their email support complaining about it.

let's see what they reply, and what options give to me.
i have asked to have replaced the disks with ones that are in the HCL list of the same capacity (as you can see only seagate has 1,5tb capacity in this list).

i'll let you know what happens.
thanks for your help.
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Re: performance with WDC WD15EARS-00Z5B1

Postby mdgm » Mon Mar 29, 2010 8:01 am

The Load Cycle Count on those disks is unacceptably high. They are incompatible.

elessar wrote:I have written to their email support complaining about it.

Good.

elessar wrote:let's see what they reply, and what options give to me.
i have asked to have replaced the disks with ones that are in the HCL list of the same capacity (as you can see only seagate has 1,5tb capacity in this list).

If they don't reply satisfactorily then tell them that if they don't replace the disks you'll report them to NetGear. NetGear won't be happy to find a reseller selling incompatible disks in a ReadyNas. You should advise the reseller that they should stick to selling disks from the compatibility list.

You can ring technical support (see link in my sig) if you like and mention the reseller sold you incompatible disks and that you've had problems as a result.

elessar wrote:i'll let you know what happens.

Good.
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Re: performance with WDC WD15EARS-00Z5B1

Postby Luciden » Mon Mar 29, 2010 8:58 am

I was thinking about getting these drives. I see the 2TB is compatible but didn't see anything about the 1.5. So is it confirmed that these are incompatible?
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Re: performance with WDC WD15EARS-00Z5B1

Postby elessar » Mon Mar 29, 2010 1:17 pm

defitely, after my experience i will not suggest these drives to anyone for use in a Nas.

those discs are intended for use on regular Personal Computers.

just take a look at the HCL as mentioned by mdgm, and go safe.

at this time.. no reply from the reseller.

i'll wait another 48 hours, after that i'll see how to resolve this with Netgear help.
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Re: performance with WDC WD15EARS-00Z5B1

Postby elessar » Wed Mar 31, 2010 4:18 am

OK finally, after tons of mailing, they replied, and aknowleged the problem and accepted my request to change the HDDs with an HCL compliant type of the same size (actually the only one in the list, the Barracuda 1,5TB model).

Hope this finishes my odyssey with these troubles and i can finally be so proud of this Nas :D

Thank you for your support, mdgm!

Max
Italy
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Re: performance with WDC WD15EARS-00Z5B1

Postby kerosene » Sun Apr 11, 2010 11:00 pm

did the new drives fix the issue>?

I think poblems might be of similar origin. Equally assumed that as 2TB sister model is compatible that the 1TB ones would be too.
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Re: performance with WDC WD15EARS-00Z5B1

Postby Cheesy2 » Mon Apr 12, 2010 9:49 am

I have these drives as well in my ready nas. So far smart is saying things are okay but what does Load Cycle Count 45568 say? Is that high or okay or should I buy other ones as soon as possible? I cannot seem to find what is acceptable as Load cycle count.

And what happens when its too high? Will my data be in danger? I know I should backup important data and lay it offsite and I have, but I cannot backup everything.

If this is a serious issue I'll be buying new disks this eve and problably the 1500GB Seagate Barracuda LP ST31500541AS. At the time I bought these 1.5 gig of western digital the seagates weren't on the hardware compatability list yet.
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Re: performance with WDC WD15EARS-00Z5B1

Postby kerosene » Mon Apr 12, 2010 3:12 pm

check these reviews before you go on with your purchase.

http://www.google.com/products/catalog?q=Seagate+Barracuda+LP+ST31500541AS&hl=en&cid=1460125184925930658&os=reviews&ei=wZjDS7a4FY64iwTO7MzoBQ&sa=X&ved=0CAsQ9AIwADgA


I have the 1TB EAR drive and will be sending them back to get something else. To be honest the 2TB version of the WD drive loos like the bast bang for the buck but right now I don't feel very confident on them.
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Re: performance with WDC WD15EARS-00Z5B1

Postby elessar » Mon Apr 12, 2010 11:12 pm

kerosene wrote:did the new drives fix the issue>?

I think poblems might be of similar origin. Equally assumed that as 2TB sister model is compatible that the 1TB ones would be too.



the vendor is Slooooowwww...

i am waiting that the Seagate disks arrives at my desk.

after that i'll say you what happens.
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Re: performance with WDC WD15EARS-00Z5B1

Postby kerosene » Tue Apr 13, 2010 12:49 pm

I ended up dropping my space goal to 750 Gb western digital WD7502ABYS drives from the approved list.

The caviar greens are out in my books - including the 2Tb version. Seagates have horrendous reputation for reliability and Hitachi drive on the list are very very pricey. Oh well - maybe by the time I need massive space extension the drive prices and compatibilities have resolved. Doubt it though - DUO is older machine and the HCL list seems to get updated rather slowly.
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