to
the same block device. Because no server is aware of what the other servers
are doing, it’s essentially guaranteed that you’ll have one server partially
overwriting things another server just wrote, resulting in lost data and/or a
broken filesystem.
-
Edward Huyer
School of Interactive Games
On Apr 29, 2016 11:46 PM, Gregory Farnum <gfar...@redhat.com> wrote:
>
> On Friday, April 29, 2016, Edward Huyer <erhvks@
On Friday, April 29, 2016, Edward Huyer <erh...@rit.edu<mailto:erh...@rit.edu>>
wrote:
This is more of a "why" than a "can I/
This is more of a "why" than a "can I/should I" question.
The Ceph block device quickstart says (if I interpret it correctly) not to use
a physical machine as both a Ceph RBD client and a node for hosting OSDs or
other Ceph services.
Is this interpretation correct? If so, what is the
what's going on here? I have a pretty strong notion, but
I'm hoping someone can give a definite answer.
This behavior appears to be normal, so I'm not actually worried about it. It
just makes myself and some coworkers go "huh, I wonder what causes that".
-----
Edward Huyer
School of I
-to-play-with tool and manual configuration is preferred for
real clusters? I've seen documentation suggesting it's not intended for use
in real clusters, but a lot of other documentation seems to assume it's the
default deploy tool.
-
Edward Huyer
School of Interactive Games and Media
-Original Message-
From: John Nielsen [mailto:li...@jnielsen.net]
Sent: Monday, June 24, 2013 1:24 PM
To: Edward Huyer
Cc: ceph-us...@ceph.com
Subject: Re: [ceph-users] Resizing filesystem on RBD without
unmount/mount cycle
On Jun 24, 2013, at 9:13 AM, Edward Huyer erh...@rit.edu
Hi,
I am thinking how to make ceph with 2 pools - fast and slow.
Plan is to use SSDs and SATAs(or SAS) in the same hosts and define pools that
use fast and slow disks accordingly. Later it would be easy to grow either
pool
by need.
I found example for CRUSH map that does similar thing
it will be good
enough.
-
Edward Huyer
School of Interactive Games and Media
Golisano 70-2373
152 Lomb Memorial Drive
Rochester, NY 14623
585-475-6651
erh...@rit.edumailto:erh...@rit.edu
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Doh. Was trying to get Outlook to quote properly, and forgot to hit Reply-all.
:)
The specifics of what data will migrate where will depend on how
you've set up your CRUSH map, when you're updating the CRUSH
locations, etc, but if you move an OSD then it
