Use diskspace on node

[cyberbootje]

Hi

I setup a proxmox cluster and i have left over disk space on a node.
I want to use that space for backups since i am going to use the san for the vm's.

I tried to use this space but it seems it is not possible to do that?

thx

 

[udo]

Hi

I setup a proxmox cluster and i have left over disk space on a node.
I want to use that space for backups since i am going to use the san for the vm's.

I tried to use this space but it seems it is not possible to do that?

thx

Hi,
i think you can use two ways (in short):
a. the easy
create a logical volume on volumegroup pve (left 4GB free in vg), mount them to a mountpoint, define this mountpoint for backups in the storage-config.

b. the cleaner, but more handwork
reduce volumegroup pve or backup the whole content of pve-data and pve-root and remove vg-pve; new partitionlayout which split the pve-partition in one partition for pve and one for a backup-vg; pvcreate on both partitions, create two volumesgroup (pve + backup), create lv root, data + swap on pve, restore content of pve-data + pve-root. Assign vg backup in the proxmox-gui for backups.
Attention! you should only do this with a valid backup and a little bit experience with linux and lvm.

Udo

 

[cyberbootje]

Just to be sure:

I go to the node device and do a:
vgextend pve /dev/sdc...

Then go to the master and define a backup section?

 

[udo]

Just to be sure:

I go to the node device and do a:
vgextend pve /dev/sdc...

Then go to the master and define a backup section?

Hi,
perhaps i missunderstand you. If you have a second harddisk (like sdc), which are free now, you can extend your vg pve, like you wrote. Or create a new volume group (pvcreate /dev/sdc1; vgcreate ...).

Udo

 

[cyberbootje]

I wil make it clear:

1 master, has 4 disks and is connected to the san (iscsi)
2 node, has also 4 disks and is connected to the same san(iscsi)

On the node i have 3 disks i want to use for temp backup snapshot dumps. Now if the node is not in a cluster i can make it trough the proxmox control panel:
Storage, directory, backup disk. This doesn't work if it is in the cluster because it says i don't have permission to write.
Now i can't do this on the master either because it will make te directory on the master server...

 

[dietmar]

On the node i have 3 disks i want to use for temp backup snapshot dumps. Now if the node is not in a cluster i can make it trough the proxmox control panel:
Storage, directory, backup disk. This doesn't work if it is in the cluster because it says i don't have permission to write.
Now i can't do this on the master either because it will make te directory on the master server...

Yes, that is a limitation of the current model (will be fixed in 2.0). But a workaround, simply create the dir on both hosts (and only use it on node).