How to add or replace a new disk but with different mode which defined in the existing DriveGroups

This document (000019748) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Enterprise Stoarge 6

Situation

The disk definition have in /srv/salt/ceph/configuration/files/drive_groups.yml is like:

drive_group_SSD:
target: 'cephosd0[1-5].suse.lab'
data_devices:
model: 'DISK_MODEL_STRING-1'
...

Now a disk failure occurs, and the new replacement disk model is "DISK_MODEL_STRING-2".
The following settings are not feasible

drive_group_SSD_NEW:
target: 'cephosd0[1-5].suse.lab'
data_devices:
model: 'DISK_MODEL_STRING-1','DISK_MODEL_STRING-2'
...

Resolution

This would require adding another 'specify' block on how the drivegroups yml file should work, for example:
Please replace 'model' and 'target' partial example for real environment）

drive_group_SSD:
target: 'cephosd0[1-5].suse.lab'
data_devices:
model: 'DISK_MODEL_STRING-1'
...

drive_group_SSD_NEW:
target: 'cephosd0[1-5].suse.lab'
data_devices:
model: 'DISK_MODEL_STRING-2'
...

To print out a detailed report of what will happen in the next DeepSea stage 3 invocation.

# salt-run disks.report

Only one specification can be set for each device type(model/vendor) per drivegroup.
This is not a bug, and it is working as designed.

Cause

Only one specification can be set for each device type(model/vendor) per drivegroup.

Status

Top Issue

Additional Information

DriveGroups specify the layouts of OSDs in the Ceph cluster.
They are defined in a single file : /srv/salt/ceph/configuration/files/drive_groups.yml

For more information:
https://documentation.suse.com/ses/6/single-html/ses-deployment/#ds-drive-groups

Disclaimer

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