Re: [Xen-users] Clean deleted space in linux diks?

[James Pifer <jep@xxxxxxxxxxxxxxxx>]

> Either you are doing a block level volume copy (in which case you'll 
> need to erase free space only), or you are doing a file copy in which 
> case you'll start with an empty virtual volume which will expand in 
> storage requirements as you copy files.

Simon, 

Just to recap, I am trying to erase the free space only. I assume the
new SAN is doing a block level copy, which is why it consumes the whole
space. Once I erase the free space there is a reclamation process on the
SAN that will make the disk thin/sparse. 

Yes, if I take a newly created thin disk, and do a file level restore or
copy, the disk remains thin. 

For this example I have a disk called xvda. It has two partitions:
xvda1 (swap)
xvda2 (system)

I would like to erase the free space on xvda2, which is running on
sles11 with ext3.

Several things were mentioned. If you don't mind repeating, what do you
feel is the final solution?

Thanks,
James






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