create directory in logical volume data

[Duckdave]

Hi,

short question, how can i create a directory in the data lv?

root@pve:/var/lib# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
data pve twi-aotz-- 2.61t 3.15 1.92
root pve -wi-ao---- 111.83g
swap pve -wi-ao---- 8.00g
vm-100-disk-1 pve Vwi-aotz-- 32.00g data 54.47
vm-104-disk-1 pve Vwi-aotz-- 100.00g data 6.51
vm-105-disk-1 pve Vwi-aotz-- 64.00g data 90.56
vm-106-disk-1 pve Vwi-aotz-- 8.00g data 29.54




do i need a mount point for pve/data?

Thanks for advice, regards david

 

[dietmar]

pve/data is a lvm-thin logical volume. You cannot create a directory there, because it is a block storage device (available as storage named 'local-lvm')

 

[Duckdave]

okay, so in my opinion i need to shrink the data lv and create a new storage device?
Regards David

 

[Duckdave]

the goal should be a separate directory for backups that stays on a another storage as root.

 

[dietmar]

the goal should be a separate directory for backups that stays on a another storage as root.

IMHO, it makes absolutely no sense to make a backup to the same disk. So please use a separate disk/location to store backups.

 

[Duckdave]

you are right dietmar, i see this as a first backup destination for configuration failure or something else or for faster restore. As a second destination a mention a other device.

Regards David

 

[wbumiller]

For configuraton errors / faster restore, you should use snapshots. `data` there is a thin pool supporting snapshots after all. If you still want to allocate some space for a directory storage, you can just as well create a thin volume on that data pool with the size you would otherwise want to shrink the pool by, that would be a safer option here.