This test was on ceph version 15.2.8. On Pacific (ceph version 16.2.4) this also works for me for initial deployment of an entire host: +---------+-------------+----------+----------+----------+-----+ |SERVICE |NAME |HOST |DATA |DB |WAL | +---------+-------------+----------+----------+----------+-----+ |osd |ssd-hdd-mix |pacific1 |/dev/vdb |/dev/vdd |- | |osd |ssd-hdd-mix |pacific1 |/dev/vdc |/dev/vdd |- | +---------+-------------+----------+----------+----------+-----+ But it doesn't work if I remove one OSD, just like you describe. This is what ceph-volume reports: ---snip--- [ceph: root@pacific1 /]# ceph-volume lvm batch --report /dev/vdc --db-devices /dev/vdd --block-db-size 3G --> passed data devices: 1 physical, 0 LVM --> relative data size: 1.0 --> passed block_db devices: 1 physical, 0 LVM --> 1 fast devices were passed, but none are available Total OSDs: 0 Type Path LV Size % of device ---snip--- I know that this has already worked in Octopus, I did test it successfully not long ago. Zitat von Kai Stian Olstad <ceph+list@olstad.com>:
On 27.05.2021 11:17, Eugen Block wrote:
That's not how it's supposed to work. I tried the same on an Octopus cluster and removed all filters except:
data_devices: rotational: 1 db_devices: rotational: 0
My Octopus test osd nodes have two HDDs and one SSD, I removed all OSDs and redeployed on one node. This spec file results in three standalone OSDs! Without the other filters this won't work as expected, it seems. I'll try again on Pacific with the same test and see where that goes.
This spec did worked for me when I initially deployed with Octopus 15.2.5.
-- Kai Stian Olstad _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io