[pve-devel] SSD only Ceph cluster

Alexandre DERUMIER aderumier at odiso.com
Sat Aug 30 15:36:38 CEST 2014


>>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

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

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Michael Rasmussen" <mir at datanom.net>, pve-devel at pve.proxmox.com 
Envoyé: Samedi 30 Août 2014 15:31:09 
Objet: Re: [pve-devel] SSD only Ceph cluster 

> When you are to compare specs for SSDs or HDD's for that matter to be used in 
> a remote storage what do you consider most important? Max read/write MB/s 
> or read/write IOPS? 
> 
> Personally I should think when we are looking at SSD's max read/write MB/s is 
> irrelevant since the network will always be the bottleneck (AFAIK no network is 
> cable of providing throughput > 400 MB/s) so I would compare read/write IOPS 
> instead. 

The Crucial MX100 provides 90k/85k IOPS. Those numbers are 
from specs, so I am not sure if you can get that in reality? 


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