[linux-lvm] Prepend LV

[Daniel Etter]

Hello

> Oleksandr Panchuk <panolex at gmail.com> hat am 3. September 2018 um 11:04 geschrieben:
> 
> So, Is there any way to prepend LV with some free space ?

I don't know what a LV with free space should be good for,
but you can achieve this by lvextend.

#lvs  /dev/mapper/system-home
 LV   VG     Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
 home system -wi-ao---- 25.00g

# df -h /home
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/system-home   25G  8.0G   16G  34% /home

# lvextend -L +20G /dev/mapper/system-home
  Size of logical volume system/home changed from 25.00 GiB (6400 extents) to 45.00 GiB (11520 extents).
  Logical volume home successfully resized

# df -h /home
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/system-home   25G  8.0G   16G  34% /home

# lvs /dev/mapper/system-home
  LV   VG     Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  home system -wi-ao---- 45.00g                                                    


Daniel