RAID 6 doesn't make exactly 3 copies of data.
I think storage is too expensive when compared to the total cost of the
platform that 3 copies is waste of storage or luxury, given than if you
have a permanent failure you still can make a new 2nd copy of the data
provided you have storage left fo
I personally want three copies of my data, more akin to RAID 6(ish) so in
my case replica 3 makes perfect sense.
On Mon, Apr 24, 2017 at 11:34 AM, Denis Chaplygin
wrote:
> Hello!
>
> On Mon, Apr 24, 2017 at 5:08 PM, FERNANDO FREDIANI <
> fernando.fredi...@upx.com> wrote:
>
>> Hi Denis, understoo
Hello!
On Mon, Apr 24, 2017 at 5:08 PM, FERNANDO FREDIANI <
fernando.fredi...@upx.com> wrote:
> Hi Denis, understood.
> What if in the case of adding a fourth host to the running cluster, will
> the copy of data be kept only twice in any of the 4 servers ?
>
replica volumes can be build only fro
Ok, great, thanks for the clarification.
Therefore a replica 3 configuration means raw storage space cost is
'similar' to a RAID 1 and actual data exists only 2 times and two
different servers.
Regards
Fernando
On 24/04/2017 11:35, Denis Chaplygin wrote:
With arbiter volume you still have a
With arbiter volume you still have a replica 3 volume, meaning that you
have three participants in your quorum. But only two of those participants
keep the actual data. Third one, the arbiter, stores only some metadata,
not the files content, so data is not replicated 3 times.
On Mon, Apr 24, 2017
But then quorum doesn't replicate data 3 times, does it ?
Fernando
On 24/04/2017 10:24, Denis Chaplygin wrote:
Hello!
On Mon, Apr 24, 2017 at 3:02 PM, FERNANDO FREDIANI
mailto:fernando.fredi...@upx.com>> wrote:
Out of curiosity, why do you and people in general use more
replica 3 t
Hello!
On Mon, Apr 24, 2017 at 3:02 PM, FERNANDO FREDIANI <
fernando.fredi...@upx.com> wrote:
> Out of curiosity, why do you and people in general use more replica 3 than
> replica 2 ?
>
The answer is simple - quorum. With just two participants you don't know
what to do, when your peer is unreac
Hello.
Out of curiosity, why do you and people in general use more replica 3
than replica 2 ?
If I understand correctly this seems overkill and waste of storage as 2
copies of data (replica 2) seems pretty reasonable similar to RAID 1
and still in the worst case the data can be replicated a
017 13:44
*An:* Sven Achtelik ; users@ovirt.org
*Betreff:* Re: [ovirt-users] Hyperconverged Setup and Gluster healing
On 04/24/2017 05:03 PM, Sven Achtelik wrote:
Hi All,
my oVirt-Setup is 3 Hosts with gluster and reaplica 3. I always
try to stay on the current version and I’m applying
Hi Kasturi,
I'll try that. Will this be persistent over a reboot of a host or even stopping
of the complete cluster ?
Thank you
Von: knarra [mailto:kna...@redhat.com]
Gesendet: Montag, 24. April 2017 13:44
An: Sven Achtelik ; users@ovirt.org
Betreff: Re: [ovirt-users] Hyperconverged Setu
On 04/24/2017 05:03 PM, Sven Achtelik wrote:
Hi All,
my oVirt-Setup is 3 Hosts with gluster and reaplica 3. I always try to
stay on the current version and I’m applying updates/upgrade if there
are any. For this I put a host in maintenance and also use the “Stop
Gluster Service” checkbox. A
Hi All,
my oVirt-Setup is 3 Hosts with gluster and reaplica 3. I always try to stay on
the current version and I'm applying updates/upgrade if there are any. For this
I put a host in maintenance and also use the "Stop Gluster Service" checkbox.
After it's done updating I'll set it back to acti
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