VxVM to LVM

[Tricia Sambrano]

I have a client who would like to migrate from VxVM on 11.23 to LVM on 11.31. Are there any known tools (like vxvmconvert which goes the other way) or procedures for accomplishing this?

Thanks much!
Trish

[Tim Nelson · Accepted solution]

Here is my initial thought.

In order to be safe and have an easy backout plan I would allocate additional storage.

Configure new storarge using LVM
mount on new filesystems
copy all data
unmount VxVMs
remount new LVMs in its place.

If any issues just remount the VxVMs and try again some other day.

If additional storage is not available the backup to tape method is there but not as secure a solution as my first.

[Tricia Sambrano]

Thanks for the quick response.

So does this mean there aren't any tools available? Even to customers with CS contracts?

[Tim Nelson]

That I cannot say for sure.. maybe a quick call into HP would definately confirm it.

but...

even with an in place conversion tool your backout plan would be dependant on a tape restore ( or some other medium )

I always like to have the origional around for failsafe.

[Michael Steele_2]

Hi

There isn't. I looked into this procedure maybe 3 years ago though. At that time a file system copy from vxvm to lvm is how we ended up going. (* cp -p -r vxvm lvm *)

[Emil Velez]

Probably no tools since people have default LVM configs and some want to go to VXVM.

IF it is a non-boot disk you can use the copy method but for the boot disk you probably could restore from a ignite image and select LVM in the advanced options and just restore the ignite image.

Of course I would do this on another disk.

[Tricia Sambrano]

Thanks for the responses.

I was hoping that since HP came out with the new and improved LVM with the agile devices, that they would offer a conversion tool.

I know a few of my clients who went with vxvm just because of the load balancing. They could save some $$$ and go back to LVM.

If I find in the future that there is one, I will post the information.

Thanks again all.