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add and remove osd, disk

I did not see the delete function and added osd and disk on the management page.

Can you hepl me?

When error 1 in 3 mon then how to delete and add new  mon?

You can add OSD by clicking "+" button on the right of an unused disk, and "+j" to add journal/wal-db disk.

If an  OSD is down, you can delete it via the "x" button. We do not allow deleting a running OSD, if you do need to do so, stop the OSD or physically remove it yourself then delete it via the button. You can also remove an entire storage node with all its OSDs if it is down. This should be all in the admin guide..

For monitors, this is handled via "Replace Management Node", which will re-install a management node.

While i was upgrading my cluster, I was thinking about the remove OSD functions (and others)...

I was thinking it may make more sense in the UI to always show the action buttons, but grey them out if there are unmet requirements, such as the OSD being stopped before being deleted. This way, you could set comments so that when you hover over a grey button, you get the tool tip with the unsatisfied requirement so you know exactly what is needed to enable and perform the action.

I would also like to have an option to remove a live osd.

if you stop the osd via systemctl stop ceph-osd@xx you can then remove it from the ui