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.
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