[SOLVED] How to remove Datastore (Directory)

[Rotzbub]

Hi,

Backup Server 1.0-1

Put in a new Disk. Create Directory and add as Datastore.

1. I can not find a way to remove a Datastore (in GUI)
   # proxmox-backup-manager datastore remove store1
   
   "Note: The above command removes only the datastore configuration. It does not delete any datafrom the underlying directory."
2. The underlying directory is still available and I cannot find a way to delete this.
   even if I unmount/plug the disk it is still there.

How can I use the disk (again) to create a 'new' datastore ?

 

[t.lamprecht]

Hi,

How can I use the disk (again) to create a 'new' datastore ?

So you created a datastore on a disk and what to recreate one on the same, forgive me if I ask but why so?
After all, you'd get the same thing again.

 

[Rotzbub]

Hi,


So you created a datastore on a disk and what to recreate one on the same, forgive me if I ask but why so?
After all, you'd get the same thing again.

I created a Datastore via: Administration - Storage/Disks - Directory - Create: Directory - (checked "add as Datastore")

I cannot delete the Directory which is using the dev uuid and marking the disk 'in use'. eg:

• want to rename the Directory
• use another filesystem
• decided to create a zfs (single disk)
• upgrade to zfs (mirror)
• ...

The disk is marked as in use and listed in Directory (Storage/Disks)

 

[t.lamprecht]

Ok. Some things like renaming can often done without recreating everything, that's why I asked.

If you want to clear the disk completely (delete all data on it again), you can zap the disk:

# WARNING: below is dangerous, wipes disk partitions, use with care!
sgdisk --zap-all /dev/sdX

Replace the /dev/ path with the respective device, triple check you got the right one and hit enter. After that, it should be useable again for creating a new storage+datastore with it.

 

[Rotzbub]

Thanks for the quick reply! I can use the disk again.

Still:

• how to rename the Directory path it is using
• after sgdisk --zap-all /dev/sdX the Directory ist still listed in "Storage/Disks - Directory" as /mnt/datastore/<name>

 

[Catwoolfii]

I guess you have to manually edit file /etc/proxmox-backup/datastore.cfg

 

[t.lamprecht]

Just re-checked and we have actually already support for that in the API, and there are some patches from a colleague open for review to add it to the web interface.

For now, as workaround please delete the systemd mount unit manually,for that execute:
systemctl disable mnt-datastore-<id>.mount

where the ID is the datastore ID of that mount you used, it needs to be escaped though, so either use CLI autocompletion to get it or the systemd-escape <my-id> command to get the escaped version of your ID.

 

[Rotzbub]

Thanks:

I disabled the service as suggested:
systemctl disable mnt-datastore-<id>.mount

then I remove the service to 'delete' the entry in PBS:
rm /etc/systemd/system/<id>

 

[exzzz]

Just re-checked and we have actually already support for that in the API, and there are some patches from a colleague open for review to add it to the web interface.

For now, as workaround please delete the systemd mount unit manually,for that execute:
systemctl disable mnt-datastore-<id>.mount

where the ID is the datastore ID of that mount you used, it needs to be escaped though, so either use CLI autocompletion to get it or the systemd-escape <my-id> command to get the escaped version of your ID.

Thank you. This solves my problem.

 

[wegiii]

Thanks:

I disabled the service as suggested:
systemctl disable mnt-datastore-<id>.mount

then I remove the service to 'delete' the entry in PBS:
rm /etc/systemd/system/<id>

This worked for me as well, thanks

 

[mike2012]

I use this lil script to remove a datastore located on a extern USB device.
Parameter is the Datastore Name

#!/bin/bash
error=$(proxmox-backup-manager datastore remove $1 2>&1 >/dev/tty)
if [ "$error" == "" ]
then
systemctl restart proxmox-backup proxmox-backup-proxy
fi
pfad=$(mount | awk "/$1/ {print "'$3'"}")
if [ "$pfad" != '' ]
then
error=$(zpool export $1 2>&1 >/dev/tty)
if [ "$error" == "" ]
then
rm -r $pfad
fi
fi

Important ! .. Dont run it from build in GUI Shell use SSH /Putty to run it.

 

[t.lamprecht]

systemctl restart proxmox-backup proxmox-backup-proxy

That breaks/interrupts all current incoming backup jobs and more, always use systemctl try-reload-or-restart ...
But it shouldn't be required anyway...

 

[mike2012]

Thx, in a prior version of PBS "zpool export" didnt work without.
Tested on 1.0-11 and works without

Script changed to

error=$(proxmox-backup-manager datastore remove $1 2>&1 >/dev/tty)
if [ "$error" == "" ]
then
pfad=$(mount | awk "/$1/ {print "'$3'"}")
if [ "$pfad" != '' ]
then
error=$(zpool export $1 2>&1 >/dev/tty)
if [ "$error" == "" ]
then
rm -r $pfad
fi
fi
fi

Script to attach i use

#!/bin/bash
txt=$(zpool import)
pool=$(echo "$txt" | awk '/pool:/ {print $2}')
state=$(echo "$txt" | awk '/state:/ {print $2}')
if [ "$state" == "ONLINE" ]
then
zpool import -f $pool
pfad=$(mount | awk "/$pool/ {print "'$3'"}")
if [ "$pfad" != "" ]
then
echo "
datastore: $pool
path $pfad" >> /etc/proxmox-backup/datastore.cfg
fi
else
echo $state
fi

 

[sublightnova]

So more than a year later and no way to delete an existing datastore from pbs?

Above comment:

where the ID is the datastore ID of that mount you used, it needs to be escaped though, so either use CLI autocompletion to get it or the systemd-escape <my-id> command to get the escaped version of your ID.

didn't make much sense to me anyways... so any help would be appreciated..

With a GUI, you should think deleting, adding a datastore should be trivial.. Guess it still is not..

Also still can't get any nfs share to be used as a datastore which is odd in 2022.

>> anyway.. proxmox-backup-manager datastore remove <name> worked

 

[fluxX04]

Hi,

So more than a year later and no way to delete an existing datastore from pbs?

this is possible since version 2.0.0-1:

ui: datastore options: add remove button to drop a datastore from the
configuration, without removing any actual data

Greetz

 

[sublightnova]

Hi,



this is possible since version 2.0.0-1:


Greetz

well ok but there is nu button.. anyway... problem was solved already anyway..

 

[EllyMae]

How is this solved? I'm running 2.2-7, and there is no remove button.

 

[tom]

How is this solved? I'm running 2.2-7, and there is no remove button.

See screenshot.

 

[EllyMae]

I see it now. But I do feel tricked by the extremely odd and non-intuitive placement of the button. I guess this isn't meant for normal users.
On my screen, it's way off to the right where my eye would not normally go.

 

[tom]

Removing a datastore (remove all backup data) should not be on a very prominent place, so I feel better if someone has to search for it.