2012/5/21 Stefan Priebe - Profihost AG <s.pri...@profihost.ag>:
> Am 20.05.2012 10:31, schrieb Christian Brunner:
>>> That's exactly what i thought too but then you need a seperate ceph / rbd
>>> cluster for each type.
>>>
>>> Which will result in a minimum of:
>>> 3x mon servers per type
>>> 4x osd servers per type
>>> ---
>>>
>>> so you'll need a minimum of 12x osd systems and 9x mon systems.
>>
>> You can arrange the storage types in different pools, so that you
>> don't need separate mon servers (this can be done by adjusting the
>> crushmap) and you could even run multiple OSDs per server.
> That sounds great. Can you give me a hint how to setup pools? Right now
> i have data, metadata and rbd => the default pools. But i wasn't able to
> find any page in the wiki which described how to setup pools.
rados mkpool <pool-name> [123[ 4]] create pool <pool-name>'
[with auid 123[and using crush rule 4]]
Christian
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