Hi, I'm trying to understand how the ceph df command calculates the "MAX AVAIL" for a pool. I came across some formulas for older versions of Ceph, but they don’t seem to work for my case. Could you explain or provide the correct method to calculate "MAX AVAIL" of pool? Any insights would be greatly appreciated. Thanks!
MAX AVAIL in the ceph df output represents the amount of data that can be used for that pool CRUSH ruleset before the first OSD becomes full, and it is not the sum of all free space across a set of OSDs. This means that OSD's whose 'reweight' values have been changed will actually impact the value of MAX AVAIL.
Hi,
I'm trying to understand how the ceph df command calculates the "MAX AVAIL" for a pool. I came across some formulas for older versions of Ceph, but they don’t seem to work for my case. Could you explain or provide the correct method to calculate "MAX AVAIL" of pool?
Any insights would be greatly appreciated.
Thanks!
MAX AVAIL in the ceph df output represents the amount of data that can be used for that pool CRUSH ruleset before the first OSD becomes full, and it is not the sum of all free space across a set of OSDs. This means that OSD's whose 'reweight' values have been changed will actually impact the value of MAX AVAIL.