[pve-devel] ceph firefly in pve repos

[Alexandre DERUMIER]

>>Try running seq. fio on them with 4MB blocks. You'll see they'll not 
>>even work for a single day. Speed will drop to 40-80MB/s. Same applies 
>>to the S3500. The S3700 works better or a Samsung SV843.

thanks I'll do it. It's a test cluster, so, let's go to burn them.

(Strange than s3500 is so low, all tests I have seen on the net showed around 10000iops constant when disk is filled)

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

De: "Stefan Priebe" <s.priebe at profihost.ag> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: "Dietmar Maurer" <dietmar at proxmox.com>, pve-devel at pve.proxmox.com 
Envoyé: Lundi 8 Septembre 2014 21:17:49 
Objet: Re: [pve-devel] ceph firefly in pve repos 

Hi, 
Am 08.09.2014 20:53, schrieb Alexandre DERUMIER: 
> BTW, seem that their are a lot of ios improvements in comming Giant. 

Yes that's why i'm staying on dumpling. I'll then switch to giant. 

> I'm going to do benchmark this week with intel s3500 and crucial 550 ssds drives. 

Don't use the crucial ones. Yes i was happy with them. But they suck 
just after getting a constant load on them. 

Try running seq. fio on them with 4MB blocks. You'll see they'll not 
even work for a single day. Speed will drop to 40-80MB/s. Same applies 
to the S3500. The S3700 works better or a Samsung SV843. 

Greets, 
Stefan 


> ----- Mail original ----- 
> 
> De: "Stefan Priebe" <s.priebe at profihost.ag> 
> À: "Dietmar Maurer" <dietmar at proxmox.com>, pve-devel at pve.proxmox.com 
> Envoyé: Lundi 8 Septembre 2014 20:24:05 
> Objet: Re: [pve-devel] ceph firefly in pve repos 
> 
> OK, Firefly is now supported. I got the information wrong. As they were 
> always speaking about Red Hat Inktank Ceph Enterprise 1.2. Didn't knew 
> that this was Firefly. 
> 
> Sorry. 
> 
> Will still stay on Dumpling ;-) 
> 
> Greets, 
> Stefan 
> 
> Am 08.09.2014 12:33, schrieb Stefan Priebe - Profihost AG: 
>> 
>> Am 08.09.2014 um 12:27 schrieb Dietmar Maurer: 
>>>> 1.) it's still not supported by inktank/redhat 
>>> 
>>> Alexandre ask on the ceph list, and AFAIR we got an answer from Sage saying it is supported. 
>>> That is why I updated... 
>> 
>> OK will ask my inktank support. But due to speed issues with firefly 
>> i'll generally stay away from it. 
>> 
>> So I've stay on dumpling right now. 
>> 
>> Greets, 
>> Stefan 
>> 
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