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Feature #49165

open

ceph crush class in osd service spec

Added by Kenneth Waegeman about 3 years ago. Updated over 1 year ago.

Status:
Need More Info
Priority:
Low
Assignee:
-
Category:
orchestrator
Target version:
-
% Done:

0%

Source:
Community (user)
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Pull request ID:

Description

It would be a nice feature to be able to override a crush class for ceph osd matching a certain drive_group or pattern.

Thanks!

Kenneth

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 #1

Updated by Sebastian Wagner over 2 years ago

  • Status changed from New to Need More Info
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 #2

Updated by Sebastian Wagner over 2 years ago

  • Priority changed from Normal to Low
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 #3

Updated by Kenneth Waegeman over 1 year ago

Is there also a way to set the device class of matching devices of a drive-group, so it would be possible to create custom classes in addition to the default hdd/ssd classes. This would be especially handy since nvme drives are also recognized as ssd devices

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 #4

Updated by Kenneth Waegeman over 1 year ago

Seems like it should be there, but it's not recognized:

I’m trying to deploy this spec:

spec:
data_devices:
model: Dell Ent NVMe AGN MU U.2 6.4TB
rotational: 0
encrypted: true
osds_per_device: 4
crush_device_class: nvme
placement:
host_pattern: 'ceph30[1-3]'
service_id: nvme_22_drive_group
service_type: osd

But it fails:

ceph orch apply -i /etc/ceph/orch_osd.yaml --dry-run
Error EINVAL: Failed to validate OSD spec "nvme_22_drive_group": Feature `crush_device_class` is not supported

It’s in the docs https://docs.ceph.com/en/quincy/cephadm/services/osd/#ceph.deployment.drive_group.DriveGroupSpec.crush_device_class, and it’s also even in the docs of Pacific. I’m running Quincy 17.2.0

Is this option missing somehow?

Thanks!!

Kenneth

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