That's it.
When finished rebalancing, the space looked as expected.
Thank you.
De: "Janne Johansson" <icepic.dz@xxxxxxxxx>
Enviada: 2025/02/27 16:52:20
Para: quaglio@xxxxxxxxxx
Cc: ceph-users@xxxxxxx
Assunto: Re: Free space
>
> Hello,
> I recently installed a new cluster.
> After the first node was working, I started transferring the files I needed. As I was in some urgency to do rsync, I enabled size=1 for the CephFS data pool.
> After a few days, when I managed to place a new node, I put size = 2 for that pool.
> Replicas of existing objects are already being recorded, but the available space has not yet been updated.
> The available space should automatically increase as I add more disks. Right?
>
> Could you help me identify where I'm going wrong?
The free space listed in "ceph df" and so on is based on "number of
OSDs, times the free-size of the OSD with smallest amount of free
space currently". Since you can't control where individual objects end
up, "ceph df" will assume worst-case placement and hence give you info
about the least possible space it can promise to give you, so if your
objects dont get placed on the worst possible place, the "ceph df"
output will not be lower by adding data until it makes a new OSD the
smallest-free one.
In the end, you need to wait until rebalancing has moved the data into
the new OSDs so that one of the previous OSDs get more free space.
This can take a while.
--
May the most significant bit of your life be positive.
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