Hi,adding osds will bring data migration,but only a small part of all data.
you can view the crush algorithm to learn more.
于 2014/3/10 10:25, You, Rong 写道:
Hi guys,
I need to add a extend server, which reside several osds, to a running ceph cluster. During add osds, ceph would not automatically modify the ceph.conf. So I manually modify the ceph.conf
And restart the whole ceph cluster with command: 'service ceph -a restart'. I just confused that if I restart the ceph cluster, ceph would rebalance the whole data(redistribution whole data) among osds? Or just move some
Data from existed osds to new osds? Anybody knows?
Best regards!
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