Dear Ceph users,
I am replacing some small disks on one of my hosts with bigger ones. I
delete the OSD from the web UI, preserving the ID for replacement, then
after the rebalancing is finished I change the disk and the cluster
automatically re-creates the OSD with the same ID. Then I adjust the
CRUSH weight.
Everything works fine except for the handling of the device ID of some
of the the new disks. As you can see below there are 5 IDs associated to
2 devices and 2 OSDs, while these are actually different disks since
OSDs see different and corrects sizes.
[ceph: root@bofur /]# ceph device ls-by-host romolo
DEVICE DEV DAEMONS
EXPECTED FAILURE
AMCC_9650SE-16M_DISK_82723576349B5E000984 sdc osd.42
AMCC_9650SE-16M_DISK_83214021349B63000A50 sdd osd.56
AMCC_9650SE-16M_DISK_83450671349B680004B3 sdf osd.68
AMCC_9650SE-16M_DISK_83471183349B680021DA sde osd.65
AMCC_9650SE-16M_DISK_9QG58JCX349B590000EE sdb osd.13
AMCC_9650SE-16M_DISK_AF248795608D6A000016 sdq osd.62
AMCC_9650SE-16M_DISK_J0210858000000000000 sdi sdn osd.105 osd.20
AMCC_9650SE-16M_DISK_J0210926000000000000 sdg sdl osd.36 osd.5
AMCC_9650SE-16M_DISK_N0ECFHAL000000000000 sdj sdo osd.25 osd.60
AMCC_9650SE-16M_DISK_N0R5P9WT000000000000 sdk sdp osd.51 osd.70
AMCC_9650SE-16M_DISK_PBGDG6EE000000000000 sdh sdm osd.45 osd.9
SanDisk_SSD_PLUS_21089P443002 sda mon.romolo
I really don't understand what happened, if I did something wrong, or
how to fix this.
Any help is greatly appreciated.
Nicola
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