[ceph-users] how to improve performance

ulembke at polarzone.de ulembke at polarzone.de
Tue Nov 21 07:56:37 PST 2017


Am 2017-11-21 13:12, schrieb Rudi Ahlers:
> On Tue, Nov 21, 2017 at 10:46 AM, Christian Balzer <chibi at gol.com> 
> wrote:
> 
>> On Tue, 21 Nov 2017 09:21:58 +0200 Rudi Ahlers wrote:
>> 
>> > On Mon, Nov 20, 2017 at 2:36 PM, Christian Balzer <chibi at gol.com> wrote:
>> >...
>> >
>> >
>> > Ok, so I have 4 physical servers and need to setup a highly redundant
>> > cluster. How else would you have done it? There is no budget for a SAN,
>> let
>> > alone a highly available SAN.
>> >
>> As I said, I'd be fine doing it with Ceph, if that was a good match.
>> It's easy to starve resources with hyperconverged clusters.
>> 
>> Since you're using proxmox, DRBD would be an obvious alternative,
>> especially if you're not planning on growing this cluster.
>> 
>> You only mentioned 3 servers so far, is the fourth one non-Ceph?
>> 
> 
> From what I have read, DRBD isn't very stable?
> 
> The 4th one will be for backups.
> 
Hi,
unfortunality drbd isn't realy useable in proxmox-ve anymore.
Linbit changed the licence and proxmox droped drbd-support.
Linbit create an own repository and changed the licence back, but there 
are no real user base.


Udo


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