Hi Tibor,
It all depends on if you can risk the chance of downtime.
Buying a couple larger HDD's is probably cheaper than spending a couple
of hours of your time on it when things break. You could have one node
down permanently, replace it completly and heal the volume
(http://gluster.org/community/documentation/index.php/Gluster_3.4:_Brick_Restoration_-_Replace_Crashed_Server)
During this time the cluster is at risk and performance will suffer
during healing. I think if you use the same data disk healing will be
quick though.
Kind regards,
Jorick Astrego
Netbulae B.V.
On 08/19/2014 10:09 AM, Punit Dambiwal wrote:
Hi Tibor,
In this if your host OS disk will crash your brick data also
inaccessible..better to have the RAID1 for OS...
Thanks,
Punit
On Tue, Aug 19, 2014 at 2:29 PM, Demeter Tibor <tdeme...@itsmart.hu
<mailto:tdeme...@itsmart.hu>> wrote:
Hi,
I would like to make a four-node gluster based cluster, but I
don't have enought hdd. I just wondering, on the hosts (not on the
portal) I won't use raid for the main system (os).
I have disks only for bricks. I will give one disk for the os, and
one disk for gluster brick per server.
Is it a good idea?
What will happen if the main system's hdd will break?
Can I recreate gluster+vdsm host without data loss?
How did I do it?
Thanks for advance.
Tibor
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