[PVE-User] Ceph or Gluster

Alexandre DERUMIER aderumier at odiso.com
Mon Apr 25 17:00:07 CEST 2016

>>I'm not happy with the concept of them 
>>moving it bare disk access (Bluestore).

Well,with bluestore, no more journal and double write.
So, without ssd, performance will be better.

You can still have ssd for fast ack, but something like a intel s3500 should be enough, 
because they won't write too many things.

----- Mail original -----
De: "Lindsay Mathieson" <lindsay.mathieson at gmail.com>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Lundi 25 Avril 2016 10:41:21
Objet: Re: [PVE-User] Ceph or Gluster

On 25/04/2016 5:24 PM, Eneko Lacunza wrote: 
> So, here you have the reason for your bad write performance with Ceph. 
> You have to carefully choose the journal SSDs, otherwise you can be 
> better even without SSDs... (yes, I made this very mistake too!) 
> What brand/model? 

Yah I know :( Intel 530's initially, then Samsung 850 Pro. The 3700's 
were out of our budget range for the size of our cluster. 

Wasn't to happy with the direction Ceph is taking either, to me the 
required hardware and complexity seems to be moving out of the range of 
the small business setup and I'm not happy with the concept of them 
moving it bare disk access (Bluestore). 

Lindsay Mathieson 

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