Very Computer

Hi,  

   Can you import an AIX 4.3.3 volume group into AIX 5.1 system?

Also what changes are made on the LVM if any when you upgrade from 4.3.3 to 5.1.

Thank You

Yes, you can import the vgs. No change is required.

Hi,

Will we be able to go back and forth between 4.3.3 and 5.1...

ex.

on 5.1
importvg vg000
export vg000

on 4.3.3
importvg vg000

etc.

Also do you know of any issues of downward compatibility with 5.1 32
bit mode and 4.3.3 32 bit mode with c programs and third party
software?

Thanks

Quote:> Hi,

> Will we be able to go back and forth between 4.3.3 and 5.1...

> ex.

> on 5.1
> importvg vg000
> export vg000

> on 4.3.3
> importvg vg000

This is a quote from the AIX 5L Differences Guide Version 5.1 Edition
redbook, page 63 (p91 of the PDF)
(without explicit permission):

"Because the physical volume and volume group identifiers have been
changed from 16 characters to 32 characters, you can only access a
volume group created on AIX 5L from an AIX Version 4.3.3 system after
you have applied the appropriate fixes from the Fall 2000 AIX Version 4.3.3
Update CD. You can access a volume group created on AIX Version 4.3.3
on an AIX 5L system, but using any of the new features, like setting a
different logical track group size, will change some of the volume group
identification internal data structures in a way that the volume group
becomes unusable on an AIX Version 4.3.3 or previous release."

So, as long as you don't change vg000 while its imported on the 5L Version
5.1 system (and it was created in 4.x) you should be fine.

Regards,
--Kristian