[pve-devel] SSD only Ceph cluster

[VELARTIS Philipp Dürhammer]

Yes :-) and next release will have fully supported possibility to have different roots on hosts. 
For example one for ssd and one for spinners. (which was possible right now but not very usable)
For me it is a lot better to have a big pool with spinners and a separate pool with fast ssds... without the need to have a least 6 or more osd servers

-----Ursprüngliche Nachricht-----
Von: pve-devel [mailto:pve-devel-bounces at pve.proxmox.com] Im Auftrag von Alexandre DERUMIER
Gesendet: Samstag, 30. August 2014 17:58
An: Dietmar Maurer
Cc: pve-devel at pve.proxmox.com
Betreff: Re: [pve-devel] SSD only Ceph cluster

>>So this is a perfect fit, considering the current ceph limitations?

Yes, sure!


I known also that firefly have limitation in the read memory cache, around 25000iops by node.
Seem that master ceph git has resolved that too :)

Can't wait for Giant release :)



----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com>
À: "Alexandre DERUMIER" <aderumier at odiso.com>
Cc: "Michael Rasmussen" <mir at datanom.net>, pve-devel at pve.proxmox.com
Envoyé: Samedi 30 Août 2014 17:06:23
Objet: RE: [pve-devel] SSD only Ceph cluster 

> >>The Crucial MX100 provides 90k/85k IOPS. Those numbers are from 
> >>specs, so I am not sure if you can get that in reality?
> 
> No, I think you can reach 90K maybe for some seconds when they are 
> empty ;)
> 
> check graph here: 
> http://www.anandtech.com/show/8066/crucial-mx100-256gb-512gb-review/3
> 
> It's more around 7000iops

So this is a perfect fit, considering the current ceph limitations? 
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