Copy one Logical Volume to the Another ?

[John_44]

Hello, I have a logical volume that is almost full. In another volume group I have a larger logical volume that I can copy the data to. My plan is to copy the date from the smaller one to the larger one then unmount the smaller logical volume and mount the larger one on the original mount point. What is the easiest way to do this? I know there are a few copy utilities in HP-UX but I am not sure which one is best for this purpose. Any help would be appreciated and I will assign points as always.

John

[Pete Randall · Accepted solution]

John,

I use something like this:

cd /yourlvol
find . -print |cpio -pdumxl /yournewlvol


That should do it.


Pete

[A. Clay Stephenson]

About as easy as it gets is:

1) cd to source dir.
2) find . -print | cpio -pudvm /newdir/

[Bill Douglass]

I agree that cpio is probably the way to go, but I wanted to add:

cd /old/directory
tar cvf - * | (cd /new/directory; tar xf -)

Would do this as well.

[Uday_S_Ankolekar]

You can also use dd command
dd if=/dev/sourceVG/sourceLV of=/dev/TOVG/toLV bs=1024k

and do not forget to modify /etc/fstab file

-USA..

[John_44]

Guys,

Thank you for all your help.

John

[A. Clay Stephenson]

Warning: dd is NOT the way to do this!! It will simply copy at the block level so that if you copy into a larger LVOL the underlying filesystem will know nothing about it and you will be no better off until you do an extendfs.

[A. Clay Stephenson]

Warning: dd is NOT the way to do this!! It will simply copy at the block level so that if you copy into a larger LVOL the underlying filesystem will know nothing about it and you will be no better off. (At least until you do a subsequent extendfs or fsadm).