On Wed, May 12, 2010 at 4:05 AM, Emily Grettel <
emilygrettelis...@hotmail.com> wrote:

>  Hello,
>
> I've decided to replace my WD10EADS and WD10EARS drives as I've checked the
> SMART values and they've accrued some insanely high numbers for the
> load/unload counts (40K+ in 120 days on one!).
>
> I was leaning towards the Black drives but now I'm a bit worried about the
> TLER lackingness which was a mistake made my previous sysadmin.
>
> I'm wondering what other people are using, even though the Green series has
> let me down, I'm still a Western Digital gal.
>
> Would you recommend any of these for use in a ZFS NAS?
>
>
>    - 4x WD2003FYYS -
>    http://www.wdc.com/en/products/Products.asp?DriveID=732 [RE4]
>    - 4x WD2002FYPS -
>    http://www.wdc.com/en/products/products.asp?DriveID=610 [Green]
>    - 6x WD1002FBYS -
>    http://www.wdc.com/en/products/Products.asp?DriveID=503 [RE3]
>
> Skip anything from WD with the word "Green" in the title.  They're all
crap, even the RE Greens are crap.  (Okay, they might be good for home
storage, but definitely not for non-home storage setups.)  It's possible to
disable the idle timeout using the wdidle3 utility (requires a boot to DOS).

We have 8 WD Green 1.5 TB drives in one storage server.  Even with the idle
timeout disabled (no load/unload cycles), these things are slow.  They're
not true 7200 RPM drives, and the 64 MB onboard cache doesn't help to hide
that.  A re-silver of 1 drive takes over 65 hours on an idle system, and
close to 100 hours on an active system.

In our other storage server, we went with 1.5 TB Seagate 7200.11 drives.
 Much nicer.  Only 32 MB cache, but they're easily twice as fast as the WD
Greens.  A re-silver of one of these takes about 35 hours.  Even when
running backups.

The WD RE drives are nice as well.  All of our 500 GB drives in our storage
servers are WD RE Black drives.  All of our 400 GB drives are Seagate
E-something drives.  No complaints about those.  But, they're enterprise,
RAID-qualified drives.

-- 
Freddie Cash
fjwc...@gmail.com
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