MAX AVAIL is the amount of data you can still write to the cluster
before *anyone one of your OSDs* becomes near full. If MAX AVAIL is
not what you expect it to be, look at the data distribution using
ceph osd tree and make sure you have a uniform distribution.
Mohamad
On 6/25/19 11:46 AM, Davis Mendoza Paco
wrote:
Hi all,
I have installed ceph luminous, with 43 OSD(3TB)
Checking pool statistics
ceph df detail
GLOBAL:
SIZE AVAIL RAW USED %RAW USED OBJECTS
117TiB 69.3TiB 48.0TiB 40.91 4.20M
POOLS:
NAME ID QUOTA OBJECTS QUOTA
BYTES USED %USED MAX AVAIL OBJECTS
DIRTY READ WRITE RAW USED
images 9 N/A N/A
144GiB 1.36 10.2TiB 22379 22.38k
70.0MiB 354KiB 432GiB
vms 10 N/A N/A
3.36TiB 24.69 10.2TiB 889606 889.61k
3.36GiB 4.61GiB 10.1TiB
backups 12 N/A N/A
1.00GiB 0 10.2TiB 261 261
103KiB 525B 3.00GiB
volumes 13 N/A N/A
12.5TiB 55.02 10.2TiB 3289892 3.29M
754MiB 616MiB 37.6TiB
I can not understand what the column "MAX AVAIL" refers to,
according to the column "% USED" only 55% of the pool
"volumes" is used, that is 12.5TiB
NAME ID USED %USED
MAX AVAIL
volumes 13 12.5TiB 55.02
10.2TiB
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