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From: Mark Nelson <mark.nelson@inktank.com>
To: Gandalf Corvotempesta <gandalf.corvotempesta@gmail.com>
Cc: Florian Haas <florian@hastexo.com>, ceph-devel@vger.kernel.org
Subject: Re: OSD nodes with >=8 spinners, SSD-backed journals, and their performance impact
Date: Tue, 15 Jan 2013 15:40:20 -0600	[thread overview]
Message-ID: <50F5CCC4.7050408@inktank.com> (raw)
In-Reply-To: <CAJH6TXgwhhzM+0OfLf_=rw5fMrrde_4tT8KjX0N-RecnQ_O6uw@mail.gmail.com>

On 01/15/2013 03:24 PM, Gandalf Corvotempesta wrote:
> 2013/1/15 Mark Nelson <mark.nelson@inktank.com>:
>> I think the 12 bay supermicro 2U "A" chassis with 12 spinning disks, 10GbE,
>> and two controllers is potentially a really nice balanced combination.
>
> Which chassis are your referring to ? I don't see any 2U with 12 front
> and rear spinning disk from supermicro. Only 3U with rear disks
>

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.  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.

Mark

  reply	other threads:[~2013-01-15 21:40 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 [this message]
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
2013-01-18 23:48             ` Gandalf Corvotempesta
2013-01-19  8:18               ` Simon Leinen

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