How to prefer faster disks in same pool

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Hi Guys,

I have a ceph pool that is mixed with 10k rpm disks and 7.2 k rpm disks.

There are 85 osds and 10 of them are 10k
Size is not an issue, the pool is filled only 20%

I want to somehow prefer the 10 k rpm disks so that they get more i/o

What is the most intelligent wy to prefer the faster disks ?
Just give them another weight or are there other methods ?

Thanks
  Christoph


-- 
Christoph Adomeit
GATWORKS GmbH
Reststrauch 191
41199 Moenchengladbach
Sitz: Moenchengladbach
Amtsgericht Moenchengladbach, HRB 6303
Geschaeftsfuehrer:
Christoph Adomeit, Hans Wilhelm Terstappen

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Fon. +49 2166 9149-32                      Fax. +49 2166 9149-10
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