Hello everyone,
We
have some osd on the ceph.
Some
osd's usage is more than 77% and another osd's usage is 39% in
the same host.
I
wonder why osd’s usage is different.(Difference is large) and
how can i fix it?
ID CLASS WEIGHT REWEIGHT
SIZE USE AVAIL %USE VAR PGS TYPE NAME
-2
93.26010 - 93.3TiB 52.3TiB 41.0TiB 56.04
0.98 - host serverA
…...
33 HDD 9.09511 1.00000 9.10TiB
3.55TiB 5.54TiB 39.08 0.68 66 osd.4
45 HDD 7.27675 1.00000 7.28TiB
5.64TiB 1.64TiB 77.53 1.36 81 osd.7
…...
-5 79.99017 - 80.0TiB 47.7TiB
32.3TiB 59.62 1.04 - host serverB
1 HDD 9.09511 1.00000
9.10TiB 4.79TiB 4.31TiB 52.63 0.92 87 osd.1
6 HDD 9.09511 1.00000
9.10TiB 6.62TiB 2.48TiB 72.75 1.27 99 osd.6
…...
Thank you
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In some cases the root cause is if your pg count is small, the
variations in pg count per osd will be higher, this is compounded
more if your total osd count is small.
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