ceph osd dump | grep size
Check that all pools are size 2, min size 2 or 1.
If not you can change on the fly with:
ceph osd pool set #poolname size/min_size #size
See docs http://ceph.com/docs/master/rados/operations/pools/ for
alterations to pool attributes.
-Michael
On 05/06/2014 17:29, Vadim Kimlaychuk wrote:
____________________________
I have
osd pool default size = 2
at my ceph.conf. Shouldn' it tell ceph to use 2 OSDs ? Or it is somewhere in
CRUSH map?
Vadim
____________
From: Christian Balzer [[email protected]]
Sent: Thursday, June 05, 2014 18:26
To: Vadim Kimlaychuk
Cc: [email protected]
Subject: Re: [ceph-users] Hard drives of different sizes.
Hello,
On Thu, 5 Jun 2014 14:11:47 +0000 Vadim Kimlaychuk wrote:
Hello,
Probably this is anti-pattern, but I have to get answer how
this will work / not work. Input:
I have single host for tests with ceph 0.80.1 and 2 OSD:
OSD.0 – 1000 Gb
OSD.1 – 750 Gb
Recompiled CRUSH map to set „step chooseleaf firstn 0 type
osd“
You got it half right.
Version .8x aka Firefly has a default replication of 3, so you would need
3 OSDs at least.
Christian
I am expecting, that part of PG-s will have status
„active+clean“ (with size of ~750Gb) another part of PG-s will have
„active+degradated“ (with size of ~250Gb), because there is not enough
place to replicate data on the second OSD.
Instead I have ALL PG-s „active + degradated“
Output:
health HEALTH_WARN 192 pgs degraded; 192 pgs stuck unclean
monmap e1: 1 mons at {storage=172.16.3.2:6789/0}, election epoch 2,
quorum 0 storage osdmap e15: 2 osds: 2 up, 2 in
pgmap v29: 192 pgs, 3 pools, 0 bytes data, 0 objects
71496 kB used, 1619 GB / 1619 GB avail
192 active+degraded
What is the logic behind this?? Can I use different hard
drives successfully? If yes – how?
Thank you for explanation,
Vadim
--
Christian Balzer Network/Systems Engineer
[email protected] Global OnLine Japan/Fusion Communications
http://www.gol.com/
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