1. Do not use raid for osd disks... 1 ods per disk 2-3. I would have 3 or more osd nodes... more is better for when you have issues or need maintenance. We use vms for mon nodes with mgr on each mon node. 5 is the recommended for a production cluster but you can be ok with 3 for a small cluster 4. Again we use vms for rgw and scale these to traffic needs. Sent from my iPhone > On Apr 20, 2020, at 1:08 PM, harald.freidhof@xxxxxxxxx wrote: > > Hello together, > > we want to create a productive ceph storage system in our datacenter in may this year with openstack and ucs and i tested a lot in my cep test enviroment, and i have some general questions. > > whats receommended? > > 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? > 2. if i have a 2 pyhsicaly node osd cluster, did i need 3 physicall mons? > 3. if i have a 3 physically node osd cluster, did i need 5 physicall mons? > 3. where i should in install the mgr? on osd or mon > 4. where i should in install the rgw? on osd or mon OR on 1 or 2 separate machines? > > in my testlab i created 3 VMs osds with mgr installed, and 5 VMs mons , and 1 VM as rgw -> is this correct? > > thx in advance > hfreidhof > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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