You can also prepare a crush rule to put only 2 chunks per host. That way you can still operate cluster even if a single host is down. Regards, On 3/25/21 7:53 PM, Martin Verges wrote:
You can change the crush rule to be OSD instead of HOST specific. That way Ceph will put a chunk per OSD and multiple Chunks per Host.
Please keep in mind, that will cause an outage if one of your hosts are offline.
-- Martin Verges Managing director
Mobile: +49 174 9335695 E-Mail: martin.verges@croit.io Chat: https://t.me/MartinVerges
croit GmbH, Freseniusstr. 31h, 81247 Munich CEO: Martin Verges - VAT-ID: DE310638492 Com. register: Amtsgericht Munich HRB 231263
Web: https://croit.io YouTube: https://goo.gl/PGE1Bx
On Thu, 25 Mar 2021 at 19:02, by morphin <morphinwithyou@gmail.com> wrote:
Hello.
I have 5 node Cluster in A datacenter. Also I have same 5 node in B datacenter. They're gonna be 10 node 8+2 EC cluster for backup but I need to add the 5 node later. I have to sync my S3 data with multisite on the 5 node cluster in A datacenter and move them to the B and add the other 5 node to the same cluster.
The question is: Can I create 8+2 ec pool on 5 node cluster and add the 5 node later? How can I rebalance the data after that? Or is there any better solution in my case? what should I do? _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
_______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
-- PS