[ceph-users] Re: Strategy for add new osds

Hi, as far as I understand it, you get no real benefit with doing them one by one, as each osd add, can cause a lot of data to be moved to a different osd, even tho you just rebalanced it. The algorithm determining the placement of pg's does not take the current/historic placement into account, so changing anything at this, could cause any amount of data to migrate, with each change Greetings, Kai On 6/15/21 5:06 PM, Jorge JP wrote: > Hello, > > I have a ceph cluster with 5 nodes (1 hdd each node). I want to add 5 more drives (hdd) to expand my cluster. What is the best strategy for this? > > I will add each drive in each node but is a good strategy add one drive and wait to rebalance the data to new osd for add new osd? or maybe.. I should be add the 5 drives without wait rebalancing and ceph rebalancing the data to all new osd? > > Thank you. > _______________________________________________ > ceph-users mailing list -- ceph-users(a)ceph.io > To unsubscribe send an email to ceph-users-leave(a)ceph.io