Gandalf Corvotempesta writes:
2013/1/18 Simon Leinen simon.lei...@switch.ch:
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
On 01/15/2013 03:31 AM, Gandalf Corvotempesta wrote:
2013/1/14 Mark Nelson mark.nel...@inktank.com:
The advice that I usually give people is that if performance is a big
concern, try to match filestore disk and journal performance is nearly
matched. In my test setup, I use 1 intel 520 SSD to
On 01/15/2013 03:24 PM, Gandalf Corvotempesta wrote:
2013/1/15 Mark Nelson mark.nel...@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
Hi everyone,
we ran into an interesting performance issue on Friday that we were
able to troubleshoot with some help from Greg and Sam (thanks guys),
and in the process realized that there's little guidance around for
how to optimize performance in OSD nodes with lots of spinning disks
(and
Hi Tom,
On Mon, Jan 14, 2013 at 2:28 PM, Tom Lanyon t...@netspot.com.au wrote:
On 14/01/2013, at 10:47 PM, Florian Haas flor...@hastexo.com wrote:
snip
http://www.hastexo.com/resources/hints-and-kinks/solid-state-drives-and-ceph-osd-journals
It's probably easiest to comment directly on that
On 01/14/2013 06:17 AM, Florian Haas wrote:
Hi everyone,
we ran into an interesting performance issue on Friday that we were
able to troubleshoot with some help from Greg and Sam (thanks guys),
and in the process realized that there's little guidance around for
how to optimize performance in
On 14/01/2013, at 10:47 PM, Florian Haas flor...@hastexo.com wrote:
snip
http://www.hastexo.com/resources/hints-and-kinks/solid-state-drives-and-ceph-osd-journals
It's probably easiest to comment directly on that page, but if you
prefer instead to just respond in this thread, that's perfectly
Hi Mark,
thanks for the comments.
On Mon, Jan 14, 2013 at 2:46 PM, Mark Nelson mark.nel...@inktank.com wrote:
Hi Florian,
Couple of comments:
OSDs use a write-ahead mode for local operations: a write hits the journal
first, and from there is then being copied into the backing filestore.
On Mon, Jan 14, 2013 at 6:09 AM, Florian Haas flor...@hastexo.com wrote:
Hi Mark,
thanks for the comments.
On Mon, Jan 14, 2013 at 2:46 PM, Mark Nelson mark.nel...@inktank.com wrote:
Hi Florian,
Couple of comments:
OSDs use a write-ahead mode for local operations: a write hits the
On 01/14/2013 06:34 PM, Gregory Farnum wrote:
On Mon, Jan 14, 2013 at 6:09 AM, Florian Haas flor...@hastexo.com wrote:
Hi Mark,
thanks for the comments.
On Mon, Jan 14, 2013 at 2:46 PM, Mark Nelson mark.nel...@inktank.com wrote:
Hi Florian,
Couple of comments:
OSDs use a write-ahead
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