On Sat, Sep 12, 2009 at 02:37:35PM -0500, Tim Cook wrote:
On Sat, Sep 12, 2009 at 10:17 AM, Damjan Perenic
...
I shopped for 1TB 7200rpm drives recently and I noticed Seagate
Barracude ES.2 has 1TB version with SATA and SAS interface.
On the flip side, according to storage
On Sat, Sep 12, 2009 at 7:25 AM, Tim Cook t...@cook.ms wrote:
On Fri, Sep 11, 2009 at 4:46 PM, Chris Du dilid...@gmail.com wrote:
You can optimize for better IOPS or for transfer speed. NS2 SATA and SAS
share most of the design, but they are still different, cache, interface,
firmware are
On Sat, Sep 12, 2009 at 10:17 AM, Damjan Perenic
damjan.pere...@guest.arnes.si wrote:
On Sat, Sep 12, 2009 at 7:25 AM, Tim Cook t...@cook.ms wrote:
On Fri, Sep 11, 2009 at 4:46 PM, Chris Du dilid...@gmail.com wrote:
You can optimize for better IOPS or for transfer speed. NS2 SATA and
On Thu, Sep 10, 2009 at 01:11:49PM -0400, Eric Sproul wrote:
I would not use the Caviar Black drives, regardless of TLER settings. The RE3
or RE4 drives would be a better choice, since they also have better vibration
tolerance. This will be a significant factor in a chassis with 20 spinning
2009 9:51
To: Eric Sproul; zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] alternative hardware configurations for zfs
On Thu, Sep 10, 2009 at 01:11:49PM -0400, Eric Sproul wrote:
I would not use the Caviar Black drives, regardless of TLER settings. The RE3
or RE4 drives would
September 2009 5:00 PM
To: Eugen Leitl; Eric Sproul; zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] alternative hardware configurations for zfs
We've been using caviar black 1TB with disk configurations consisting 64
disks or more. They are working just fine.
Yours
Markus Kovero
-Original
-
From: Tristan Ball [mailto:tristan.b...@leica-microsystems.com]
Sent: 11. syyskuuta 2009 10:04
To: Markus Kovero; zfs-discuss@opensolaris.org
Subject: RE: [zfs-discuss] alternative hardware configurations for zfs
How long have you had them in production?
Were you able to adjust the TLER
Can you use SATA drives with expanders at all? (I have to stick
to enterprise/nearline SATA (100 EUR/TByte vs. 60 EUR/TByte
consumer SATA) for cost reasons).
Yes, the expander has nothing to do with the drive in front of it.
I have several SAS expanders with SATA drives on them.
What is the
Can you use SATA drives with expanders at all? (I have to stick to
enterprise/nearline SATA (100 EUR/TByte vs. 60 EUR/TByte consumer SATA) for
cost reasons).
Yes you can in E1 model. E1 is single path model which supports both SAS and
SATA. You need to know what you are buying. The Supermicro
On Fri, Sep 11, 2009 at 12:48 PM, Chris Du dilid...@gmail.com wrote:
Can you use SATA drives with expanders at all? (I have to stick to
enterprise/nearline SATA (100 EUR/TByte vs. 60 EUR/TByte consumer SATA) for
cost reasons).
Yes you can in E1 model. E1 is single path model which supports
On Fri, Sep 11 at 13:14, Tim Cook wrote:
Better IOPS? Do you have some numbers to back that claim up? I've never
heard of anyone getting much better IOPS out of a drive by simply
changing the interface from SATA to SAS. Or SATA to FATA for that
matter. A 7200RPM drive is limited by
On Fri, Sep 11, 2009 at 3:20 PM, Eric D. Mudama
edmud...@bounceswoosh.orgwrote:
On Fri, Sep 11 at 13:14, Tim Cook wrote:
Better IOPS? Do you have some numbers to back that claim up? I've never
heard of anyone getting much better IOPS out of a drive by simply
changing the interface from
You can optimize for better IOPS or for transfer speed. NS2 SATA and SAS share
most of the design, but they are still different, cache, interface, firmware
are all different.
Then by much better, I don't mean just IOPS, it's all the 3, better IOPS,
command queue and error recovery, etc.
--
Eugen Leitl wrote:
Inspired by
http://www.webhostingtalk.com/showpost.php?p=6334764postcount=14
I'm considering taking the Supermicro chassis like
http://www.supermicro.com/products/chassis/4U/846/SC846E1-R900.cfm
populating it with 1 TByte WD Caviar Black WD1001FALS with TLER
set to 7
Why do you need 3x LSI SAS3081E-R? The back plane has LSI SAS x36 expander so
you only nedd 1x 3081E. If you want multipathing, you need E2 model.
Second, I'd say use Seagate ES 2 1TB SAS disk especially if you want
multipathing. I believe E2 only supports SAS disks.
I have Supermicro 936E1
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