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Feature #22287

closed

ceph-volume lvm deactivate

Added by Alwin Antreich over 6 years ago. Updated almost 4 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Alfredo Deza
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:

Description

A nice to have feature would be a 'deactivate' to deactivate/remove the vg/lv. This may make the life easier of admins, when trying to remove the lv. Now you try to map the fsid to the osd.id to have the right disk.

root@sumi2:~# lsblk
NAME                                                                                                  MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sde                                                                                                     8:64   0 223.6G  0 disk 
└─ceph--5a03e18d--d99d--4686--878c--f48dcdab3270-osd--block--d2260de7--84a4--4225--896d--41a695554f55 253:5    0 223.6G  0 lvm  

root@sumi2:~# ceph-volume lvm list
====== osd.16 ======

  [block]    /dev/ceph-5a03e18d-d99d-4686-878c-f48dcdab3270/osd-block-d2260de7-84a4-4225-896d-41a695554f55

      type                      block
      osd id                    16
      cluster fsid              5a03e18d-d99d-4686-878c-f48dcdab3270
      cluster name              ceph
      osd fsid                  d2260de7-84a4-4225-896d-41a695554f55
      block uuid                fiAa1o-tOzC-iFqu-HVec-RnyJ-gPUG-gOprTx
      block device              /dev/ceph-5a03e18d-d99d-4686-878c-f48dcdab3270/osd-block-d2260de7-84a4-4225-896d-41a695554f55

Example:

ceph-volume lvm deactivate 16

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 #1

Updated by Patrick Donnelly over 6 years ago

  • Project changed from Ceph to ceph-volume
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 #2

Updated by Dan van der Ster over 6 years ago

+1 and btw how does one do this manually today?

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 #3

Updated by Alfredo Deza almost 6 years ago

  • Status changed from New to Need More Info

Is the expectation here to remove the vg (and lv) ? Because we can do that with `ceph-volume lvm zap`.

"activation" in ceph-volume means to create systemd services, and ensure things are ready for the OSD to start.

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 #4

Updated by Alwin Antreich almost 6 years ago

Alfredo Deza wrote:

Is the expectation here to remove the vg (and lv) ? Because we can do that with `ceph-volume lvm zap`.

"activation" in ceph-volume means to create systemd services, and ensure things are ready for the OSD to start.

Yes, that was what I was thinking about.

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 #5

Updated by Alfredo Deza almost 6 years ago

Just so I am clear :)

By deactivating you want the tooling to disable the systemd units so that they are stopped and they will not start back up again when the system restarts ?

or

You want to destroy the vg/lv?

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 #6

Updated by Alwin Antreich almost 6 years ago

Alfredo Deza wrote:

Just so I am clear :)

By deactivating you want the tooling to disable the systemd units so that they are stopped and they will not start back up again when the system restarts ?

or

You want to destroy the vg/lv?

Well, both would be nice. I thought about the task removing a OSD (disk replacement) from ceph with destroying the disk. To be able to remove disk in the end.

If a 'ceph-volume zap osd.id' would do that in one go, it would be nice. :)

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 #7

Updated by Jan Fajerski almost 4 years ago

  • Status changed from Need More Info to Resolved

lvm zap --destroy should cover this iiuc.

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