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From Christoffer Pedersen <v...@vrod.dk>
Subject Re: [VOTE] Ceph, ZFS or Linux Soft RAID?
Date Mon, 15 Jul 2019 11:49:56 GMT
Hello,

ZFS is unfortunately not supported, otherwise I would have recommended
that. But if you are going local systems (no nfs/iscsi), ext4 would be the
way to go.

On Mon, Jul 15, 2019 at 1:23 PM Ivan Kudryavtsev <kudryavtsev_ia@bw-sw.com>
wrote:

> Hi,
>
> if you use local fs, use just ext4 over the required disk topology which
> gives the desired redundancy.
>
> E.g. JBOD, R0 work well when data safety policy is established and backups
> are maintained well.
>
> Otherwise look to R5, R10 or R6.
>
> пн, 15 июл. 2019 г., 18:05 <nux@li.nux.ro>:
>
> > Isn't that a bit apples and oranges? Ceph is a network distributed
> > thingy, not a local solution.
> >
> > I'd use linux/software raid + lvm, it's the only one supported (by
> > CentOS/RedHat).
> >
> > ZFS on Linux could be interesting if it was supported by Cloudstack, but
> > it is not, you'd end up using qcow2 (COW) files on top of a COW
> > filesystem which could lead to issues. Also ZFS is not really the
> > fastest fs out there, though it does have some nice features.
> >
> > Did you really mean raid 0? I hope you have backups. :)
> >
> > hth
> >
> >
> > On 2019-07-15 11:49, Fariborz Navidan wrote:
> > > Hello,
> > >
> > > Which one do you think is faster to use for local soft Raid-0 for
> > > primary
> > > storage? Ceph, ZFS or Built-in soft raid manager of CentOS? Which one
> > > can
> > > gives us better IOPS and IO latency on NVMe SSD disks? The storage will
> > > be
> > > used for production cloud environment where arround 60 VMs will run on
> > > top
> > > of it.
> > >
> > > Your ides are highly appreciated
> >
>


-- 
Thanks,
Chris pedersen

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