[email protected] (harald.freidhof) writes:
>
> 1. shoud i use a raid controller a create for example a raid 5 with all disks
> on each osd server? or should i passtrough all disks to ceph osd?
Set up the raid controller in JBOD mode, and passthrough the disks.
> 2. if i have a 2 pyhsicaly node osd cluster, did i need 3 physicall mons?
You can colocate mons on OSDs as long as you have enough RAM - you may
need to run a third mon somewhere else to have a quorum.
Also, 2 node cluster isn't recommended at all. 3 for testing is fine
or a backup/replication site, better 5 or more.
> 3. if i have a 3 physically node osd cluster, did i need 5 physicall mons?
No, you'll be fine with 1 or 3 mons (although 1 would be risky)
> 3. where i should in install the mgr? on osd or mon
You could put the mgr on a osd, it is used mostly for statistics
and some housekeeping tasks, but not "critical".
> 4. where i should in install the rgw? on osd or mon OR on 1 or 2 separate
> machines?
I don't run RGW so I won't comment.
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