I just bought a new 1.5 Terabyte drive for my machine and the performance
just crashed.

It is a "Western Digital Caviar Green" ( Manufacturer part#
"WD15EARS" )

Accourding to specs. it's a 7200 rpm SATA with 64 k cache. Just wondering
if any other people have noticed issues with this or similar drives. Or are
large drives just slow?

I was used to using a 130 GB 15k RPM SAS drive before. Is the performance
difference so drastic between SAS and SATA? Or large versus small drives.
Or 7200 rpm versus 15k RPM.

Another mistake I might have done is that I just made one huge partition.
Could that be my performance killer?


--
Rahul

You have a large drive running on slow machine. what is the spec of your
system?



"Rahul" <(E-Mail Removed)> wrote in message
news:Xns9D2BCA2D599186650A1FC0D7811DDBC81@207.46.248.16...
>I just bought a new 1.5 Terabyte drive for my machine and the performance
> just crashed.
>
> It is a "Western Digital Caviar Green" ( Manufacturer part#
> "WD15EARS" )
>
> Accourding to specs. it's a 7200 rpm SATA with 64 k cache. Just wondering
> if any other people have noticed issues with this or similar drives. Or
> are
> large drives just slow?
>
> I was used to using a 130 GB 15k RPM SAS drive before. Is the performance
> difference so drastic between SAS and SATA? Or large versus small drives.
> Or 7200 rpm versus 15k RPM.
>
> Another mistake I might have done is that I just made one huge partition.
> Could that be my performance killer?
>
>
> --
> Rahul

15,000 rpm drives are usually associated with SCSI &/or enterprise
systems,typically these hd are under 100GB.The smaller the hd the better
the performance..

"Rahul" wrote:

> I just bought a new 1.5 Terabyte drive for my machine and the performance
> just crashed.
>
> It is a "Western Digital Caviar Green" ( Manufacturer part#
> "WD15EARS" )
>
> Accourding to specs. it's a 7200 rpm SATA with 64 k cache. Just wondering
> if any other people have noticed issues with this or similar drives. Or are
> large drives just slow?
>
> I was used to using a 130 GB 15k RPM SAS drive before. Is the performance
> difference so drastic between SAS and SATA? Or large versus small drives.
> Or 7200 rpm versus 15k RPM.
>
> Another mistake I might have done is that I just made one huge partition.
> Could that be my performance killer?
>
>
> --
> Rahul
> .
>

Rahul wrote:
> I just bought a new 1.5 Terabyte drive for my machine and the performance
> just crashed.
>
> It is a "Western Digital Caviar Green" ( Manufacturer part#
> "WD15EARS" )
>
> Accourding to specs. it's a 7200 rpm SATA with 64 k cache. Just wondering
> if any other people have noticed issues with this or similar drives. Or are
> large drives just slow?
>
> I was used to using a 130 GB 15k RPM SAS drive before. Is the performance
> difference so drastic between SAS and SATA? Or large versus small drives.
> Or 7200 rpm versus 15k RPM.
>
> Another mistake I might have done is that I just made one huge partition.
> Could that be my performance killer?
>
>

Your mistake may have been buying that drive. Did you
read the reviews first ? There is something not quite
right with that model. Maybe it is all a matter of
"user error". Perhaps the instructions that came with
the drive, were not enough of an education campaign.
Or, it could be that it actually has some firmware issues.

http://www.newegg.com/Product/Produc...tem=22-136-513

The drive has a native 4K block size ("Advanced Format"), so this
drive is part of the "new wave" of drives. One reviewer also comments that
the drive is 5400RPM (not stated in description, because it would scare
customers). For RPM rate here, it says "Intellipower", and I guess
if they can't state a number or conditions, it means they have
something to hide. You could always use the free version of HDTune
from hdtune.com and check the seek rate and see what RPM speed that
result is consistent with.

http://www.wdc.com/wdproducts/librar...879-701229.pdf

With regard to the Advanced Format 4KB sized sectors, you should be
reading this article, on what to do. There is a jumper to insert
before using the drive. Or alternately, a utility to use to prepare
the drive.

http://www.anandtech.com/storage/showdoc.aspx?i=3691

Even after the drive has been prepared, I'd still test it
thoroughly, to see whether it has any performance problems.
The drive might still have some kind of firmware problem.

I like the Newegg reviews, because they can give you an
early warning about products to avoid.

Good luck,
Paul

"ybS2okj" <(E-Mail Removed)> wrote in
news:(E-Mail Removed):

> You have a large drive running on slow machine. what is the spec of
> your system?

The machine is not slow per se. AMD Opteron procs. 2.2 GHz. 8 cores total.
(Dual socket Quad cores) 16 GB RAM.

Besides, the machine was blazing fast when I was using my 130 Gig SAS 15k
RPM drive.

--
Rahul

=?Utf-8?B?QW5kcmV3IEUu?= <(E-Mail Removed)> wrote in news:E2A3842B-9166-
4BC7-8391-(E-Mail Removed):

> 15,000 rpm drives are usually associated with SCSI &/or enterprise
> systems,typically these hd are under 100GB.The smaller the hd the better
> the performance..
>

Do you think it will be better if I run the OS from the fast SAS drive and
store docs on the larger SATA?

--
Rahul

Rahul wrote:
> The machine is not slow per se. AMD Opteron procs. 2.2 GHz. 8 cores
> total. (Dual socket Quad cores) 16 GB RAM.
>
> Besides, the machine was blazing fast when I was using my 130 Gig
> SAS 15k RPM drive.

You have that hardware and replaced a SAS drive with a SATA?!

Really?!

--
Shenan Stanley
MS-MVP
--
How To Ask Questions The Smart Way
http://www.catb.org/~esr/faqs/smart-questions.html

On 2/28/2010 20:42, Rahul wrote:
> =?Utf-8?B?QW5kcmV3IEUu?=<(E-Mail Removed)> wrote in news:E2A3842B-9166-
> 4BC7-8391-(E-Mail Removed):
>
>> 15,000 rpm drives are usually associated with SCSI&/or enterprise
>> systems,typically these hd are under 100GB.The smaller the hd the better
>> the performance..
>>
>
> Do you think it will be better if I run the OS from the fast SAS drive and
> store docs on the larger SATA?

I would. I have Windows and all programs installed on a small 10k rpm
IDE drive, and use a couple of larger 7.2k rpm drives for user data. At
one time, I had to run a clone of the system off one of the slower 7200
rpm drives, while the 10k drive was being RMAed, and the performance hit
was very noticeable.

The system will boot and shut down faster. Programs load faster. Paging
file I/O, a major performance consideration, is faster. To a lesser
extent reading/writing to %temp% folders, TIF, log files, etc..it all
adds up..

"Shenan Stanley" <(E-Mail Removed)> wrote in news:uHVdcGOuKHA.5036
@TK2MSFTNGP02.phx.gbl:

> You have that hardware and replaced a SAS drive with a SATA?!
>
> Really?!

Yes. 130 Gigs wasn't enough to accomodate all the accounts that needed
to be on it.

Any smarter way out? I don't see the obvious soultion maybe.

--
Rahul

Bill Blanton <(E-Mail Removed)> wrote in news:eFO81dOuKHA.5036
@TK2MSFTNGP02.phx.gbl:

> I would. I have Windows and all programs installed on a small 10k rpm
> IDE drive, and use a couple of larger 7.2k rpm drives for user data. At
> one time, I had to run a clone of the system off one of the slower 7200
> rpm drives, while the 10k drive was being RMAed, and the performance hit
> was very noticeable.
>

Maybe I will do that then! Is there a way during the install that I could
tell the system to move the user storage to the SATA drive? Or is that just
moving MyDocs?

--
Rahul