[PVE-User] Ceph Cache tiering

gauthierl gauthierl at lapth.cnrs.fr
Tue Oct 4 10:17:33 CEST 2016


Hi,

We was interested by setup a SSD cache tiering for our RBD storage but in the CEPH documentation, it seems to not recommend it :
http://docs.ceph.com/docs/master/rados/operations/cache-tiering/?highlight=tier#known-bad-workloads

Has any one have experience with it ?

Mathieu

----- Original Message -----
From: "Alwin Antreich" <sysadmin-pve at cognitec.com>
To: pve-user at pve.proxmox.com
Sent: Tuesday, 4 October, 2016 08:51:12
Subject: Re: [PVE-User] Ceph Cache tiering

Hi Lindsay,

On 10/03/2016 11:59 PM, Lindsay Mathieson wrote:
> Is it straightforward to setup cache tiering under Proxmox these days? last time I checked (several years ago) it was
> quite tricky with the crush rule setup and keeping the integration with the proxmox web ui.

Sadly I can't answer this one.

> 
> 
> Also do the proxmox ceph tools work with SSD partions?? agian, last time I checked they didn't.

We use SSDs for OSD journals and the pveceph tool is working well with it, also from the GUI.

> 
> 

-- 
Cheers,
Alwin
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