[PVE-User] CEPH: How to remove an OSD without experiencing inactive placement groups

[Chris Murray]

That would make sense. Thank you Dietmar, I'll give them a try. 

Sent from my HTC

----- Reply message -----
From: "Dietmar Maurer" <dietmar at proxmox.com>
To: "pve-user at pve.proxmox.com" <pve-user at pve.proxmox.com>, "Chris Murray" <chrismurray84 at gmail.com>
Subject: [PVE-User] CEPH: How to remove an OSD without experiencing inactive placement groups
Date: Fri, Dec 19, 2014 10:48


> I understand this is an emerging technology with active development;
> just want to check I'm not missing anything obvious or haven't
> fundamentally misunderstood how it works. I didn't expect the loss of
> 1/9 of the devices in the pool to cease IO, especially when every object
> exists three times.

This looks like a crush related problem to me. crush maps sometime have problems
with
small setups (also see crush tunables). But I suggest to ask that on the ceph
list.


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