From: Simon Leinen <simon.leinen@switch.ch>
To: ceph-devel@vger.kernel.org
Subject: Re: OSD nodes with >=8 spinners, SSD-backed journals, and their performance impact
Date: Fri, 18 Jan 2013 19:54:53 +0100 [thread overview]
Message-ID: <aafw1ywcci.fsf@switch.ch> (raw)
In-Reply-To: 50F5CCC4.7050408@inktank.com
Mark Nelson writes:
> http://www.supermicro.com/products/chassis/2U/826/SC826BA-R920LP.cfm
> That chassis has 12 3.5" bays in front, with 2 2.5" bays in back.
FWIW, we have a few Quanta S210-X22RQ[1], which are very similar - 2U,
12 3.5" bays in front, 2*2.5 in back. We'll try a similar configuration
to what you propose, though with only 8 spinning disks (3TB WD RED) and
one SSD (256GB Samsung 840 pro). 2*10GE, 2*Xeon E5-2630, 128GB RAM.
> an interesting setup could be 12 spinning disks, with 2 very fast SSDs
> used for journals and OS. Would need to test it first, and not sure I
> like putting the OS on the journal drives. A more modest setup would
> be just to have the 12 spinning disks for data and journals and the
> rear drives for the OS.
--
Simon.
[1] http://www.quantaqct.com/en/01_product/02_detail.php?mid=27&sid=145&id=147&qs=82
next prev parent reply other threads:[~2013-01-18 19:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 12:17 OSD nodes with >=8 spinners, SSD-backed journals, and their performance impact Florian Haas
2013-01-14 13:28 ` Tom Lanyon
2013-01-14 13:41 ` Florian Haas
2013-01-14 13:46 ` Mark Nelson
2013-01-14 14:09 ` Florian Haas
2013-01-14 17:34 ` Gregory Farnum
2013-01-14 20:17 ` Florian Haas
2013-01-15 9:31 ` Gandalf Corvotempesta
2013-01-15 17:46 ` Mark Nelson
2013-01-15 21:24 ` Gandalf Corvotempesta
2013-01-15 21:40 ` Mark Nelson
2013-01-15 21:58 ` Gandalf Corvotempesta
2013-01-16 7:41 ` Stefan Priebe - Profihost AG
2013-01-16 17:31 ` Gandalf Corvotempesta
2013-01-18 18:54 ` Simon Leinen [this message]
2013-01-18 23:48 ` Gandalf Corvotempesta
2013-01-19 8:18 ` Simon Leinen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aafw1ywcci.fsf@switch.ch \
--to=simon.leinen@switch.ch \
--cc=ceph-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.