hello, this is the situation, removed from protection group one virtual machine, after that the DPM server was restarted now there is no free space in the pool how to start cleaning the pool from stale data? Sorry for the category, I didn't find a suitable one

Hi @Alex_Nick , Whenever a data source is removed from protection and the replica is deleted ("delete replica on disk"), DPM will delete the replica and recovery point volumes and return all that disk space to the DPM Storage pool. Once the replica and recovery point volumes are deleted as a result of stopping protection that disk space will be returned to the DPM storage pool and can be used for extending current volumes or for new protection. If you chose the option to "delete replica on disk" for a co-located data source that will only delete that data sources data on that replica. The free space will only show on the replica volume. Replica free space cannot be returned to the DPM Storage pool. The space on the recovery point volume will not decrease until the shadow copies that contain recovery points for that data source are deleted based on the retention range of the protection group. DPM will run a housekeeping job nightly to prune expired recovery points. If you cannot delete any data sources, your only option is to extend the disk(s) for the DPM storage pool. ---------- (If the reply was helpful please don't forget to upvote and/or accept as answer , thank you) Best regards, Leon

DPM 2019 cleaning up storage

Accepted answer

Leon Laude 85,666 Reputation points

2021-06-14T10:10:59.627+00:00

Hi @Alex_Nick ,

Whenever a data source is removed from protection and the replica is deleted ("delete replica on disk"), DPM will delete the replica and recovery point volumes and return all that disk space to the DPM Storage pool.

Once the replica and recovery point volumes are deleted as a result of stopping protection that disk space will be returned to the DPM storage pool and can be used for extending current volumes or for new protection.

If you chose the option to "delete replica on disk" for a co-located data source that will only delete that data sources data on that replica. The free space will only show on the replica volume. Replica free space cannot be returned to the DPM Storage pool. The space on the recovery point volume will not decrease until the shadow copies that contain recovery points for that data source are deleted based on the retention range of the protection group. DPM will run a housekeeping job nightly to prune expired recovery points.

If you cannot delete any data sources, your only option is to extend the disk(s) for the DPM storage pool.

----------

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Best regards,
Leon
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Alex_Nick 81 Reputation points

2021-06-14T10:22:05.757+00:00

Hello @Leon Laude

this option was selected "delete replica on disk" free space was added to the pool by a few, but the truth is very slow, at this moment it was necessary to restart the server
and after loading the server, free space was no longer added the deleted replica took more than 6 TB of space in the pool and this volume has not been added to the free one now

Leon Laude 85,666 Reputation points

2021-06-14T10:24:19.077+00:00

I have heard it may be very slow, depending on how much space is deleted, in your case it may simply take a while, you could also try running the following command:

$volumes = Get-DPMDiskStorage -DPMServerName "DPMServerName" -Volumes Update-DPMDiskStorage -Volume $volumes[0] -FriendlyName "New Volume" -DatasourceType FileSystem

Alex_Nick 81 Reputation points

2021-06-14T10:24:25.577+00:00

it turns out that the pool now has a non-remote replica, which is not tied to any protection group is it possible to start the process of deleting this replica again?

Leon Laude 85,666 Reputation points

2021-06-14T10:25:23.03+00:00

If the command above isn't helping, you'll be best of by waiting for the nightly pruning job to run.

Alex_Nick 81 Reputation points

2021-06-14T10:35:29.413+00:00

Hello @Leon Laude

the option ("delete replica on disk") was selected as I am assuming this operation was not completed until the end due to OS reboot

it turns out that the pool now has a non-remote replica which is not tied to any protection group
is it possible to start the process of deleting this replica again?

Leon Laude 85,666 Reputation points

2021-06-14T10:39:10.1+00:00

You can try manually deleting the replica again with the Remove-DPMDatasourceReplica PowerShell cmdlet, if it doesn't work, then your only hope is that DPM's nightly job will clean it.

Alex_Nick 81 Reputation points

2021-06-14T11:10:49.963+00:00

Hell @Leon Laude

this option was selected ("delete replica on disk") as I think the delete operation was not completed completely due to OS reboot
is it possible to run this delete operation again?

Leon Laude 85,666 Reputation points

2021-06-14T11:12:24.42+00:00

As I mentioned, if you cannot see the replica in the console you cannot perform the delete option again, unless you try with the PowerShell cmdlet.

Alex_Nick 81 Reputation points

2021-06-14T11:29:20.977+00:00

I'm sorry I didn't notice that here everything needs to be answered differently
tried this
$ volumes = Get-DPMDiskStorage -DPMServerName "DPMServerName" -Volumes
Update-DPMDiskStorage -Volume $ volumes [0] -FriendlyName "New Volume" -DatasourceType FileSystem

no effect, I will wait for the night cleaning, I hope this helps in my case

thanks @Leon Laude , tomorrow I will add the situation as a result

Alex_Nick 81 Reputation points

2021-06-15T13:03:41.48+00:00

updating
a day later most of the free space returned to the pool, which makes me very happy)

Thank you

Leon Laude 85,666 Reputation points

2021-06-15T13:05:58.073+00:00

That is good news! Most likely DPM's nightly job did the cleanup :)

If the reply was helpful please don't forget to upvote and/or accept as answer, thank you!
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DPM 2019 cleaning up storage

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