[pve-devel] building last kernel with zfs, missing spl

Alexandre DERUMIER aderumier at odiso.com
Wed Jan 14 18:38:52 CET 2015


>>we now have zfs for software RAID, which is much better than mdadm. 
yes, but I'm not sure of stability of zfs for linux ;)

>>sorry, but IMHO mdadm raid is not suitable (dangerous) for ceph. But ceph is 
>>designed to work without 
>>RAID, so I don't really get why you want to use mdadm for that? 

I'm using it for ceph monitor daemon only (and os).
Of course ceph osd daemon are running on raw disk without any raid.




----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "aderumier" <aderumier at odiso.com>
Cc: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mercredi 14 Janvier 2015 09:09:59
Objet: Re: [pve-devel] building last kernel with zfs, missing spl

> >>Just in case you want to play around ;-) 
> >> 
> >>I will try to upload compiled packages to pvetest later this week. 
> 
> Ok, thanks ! 
> 
> I see that you also have added the support to pve-installer :) 
> 
> Any plan to add mdadm soft raid soon ? 

we now have zfs for software RAID, which is much better than mdadm. 

> I think it could be great with ceph setup, because ceph works great without 
> hardware raid 
> (I'm building proxmox/ ceph nodes with soft raid1 ssd for os and mon, then 
> singles ssd for osds) 

sorry, but IMHO mdadm raid is not suitable (dangerous) for ceph. But ceph is 
designed to work without 
RAID, so I don't really get why you want to use mdadm for that? 



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