Hi to All,
I want to know what is the best configuration for the Journal
devices, for example i got:
ceph-node01:
OSDs:
73GB (x10):
/dev/sda
/dev/sdb
/dev/sdc
/dev/sdd
/dev/sde
/dev/sdf
/dev/sdg
/dev/sdh
/dev/sdi
/dev/sdj
500GB (x2):
/dev/sdk
/dev/sdl
Journals (x2):
73GB:
/dev/sdm
/dev/sdn
What would be the best configuration?
Option 1) - Use the whole disks without making a partition for each
OSD:
ceph-deploy osd prepare ceph-node01:sda:/dev/sdm
ceph-deploy osd prepare ceph-node01:sdb:/dev/sdm
ceph-deploy osd prepare ceph-node01:sdc:/dev/sdm
ceph-deploy osd prepare ceph-node01:sdd:/dev/sdm
ceph-deploy osd prepare ceph-node01:sde:/dev/sdm
ceph-deploy osd prepare ceph-node01:sdk:/dev/sdm
ceph-deploy osd prepare ceph-node01:sdf:/dev/sdn
ceph-deploy osd prepare ceph-node01:sdg:/dev/sdn
ceph-deploy osd prepare ceph-node01:sdh:/dev/sdn
ceph-deploy osd prepare ceph-node01:sdi:/dev/sdn
ceph-deploy osd prepare ceph-node01:sdj:/dev/sdn
ceph-deploy osd prepare ceph-node01:sdl:/dev/sdn
Option 2) - create 6 partitions of 12GB on each Journal disk:
ceph-deploy osd prepare ceph-node01:sda:/dev/sdm1
ceph-deploy osd prepare ceph-node01:sdb:/dev/sdm2
ceph-deploy osd prepare ceph-node01:sdc:/dev/sdm3
ceph-deploy osd prepare ceph-node01:sdd:/dev/sdm4
ceph-deploy osd prepare ceph-node01:sde:/dev/sdm5
ceph-deploy osd prepare ceph-node01:sdk:/dev/sdm6
ceph-deploy osd prepare ceph-node01:sdf:/dev/sdn1
ceph-deploy osd prepare ceph-node01:sdg:/dev/sdn2
ceph-deploy osd prepare ceph-node01:sdh:/dev/sdn3
ceph-deploy osd prepare ceph-node01:sdi:/dev/sdn4
ceph-deploy osd prepare ceph-node01:sdj:/dev/sdn5
ceph-deploy osd prepare ceph-node01:sdl:/dev/sdn6
Option 3) - Any other ideas? or recommendations? Is better to
partitioned the Journal with XFS, right?
Thanks in advance,
Best regards,
German Anders
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