How to speed up restore to LVM over LUN over SAN

[yatesco]

Hi all,

This might not be possible (because of the block level of the restore) but is there anyway to speed up restores to a LUN on a SAN?

If I backup a relative empty 5GB VM on a SAN I get a 700MB .tar file. However, when I restore it to the SAN it writes all 5GB (doing dd I expect).

Is there anyway I can make this more efficient?

 

[dietmar]

A restore needs to write all data. I see no way to optimize that (for block devices).

 

[m.ardito]

if it uses dd, the only way could be use a more efficient bs, i think.

M