Here are the answers from Compaq persons:
1)
If you use addvol and rmvol on a V4.0x formatted AdvFS domain using a
V5.x system, it will preserve the V4.0x on-disk format.
You have to create a new domain, then move the data onto it using the
vdump/vrestore or tar or what ever suits your fancy. And of course,
you have to move the data one fileset at a time. It's tedious. In a
more perfect world, there would be a conversion utility that would do
this for you in-place, preserving your filesets; in the real world, it
is unlikely we'd get such a utility right.
Tom
Dr. Thomas P. Blinn + UNIX Software Group + Compaq Computer
Corporation
2)
Hi Claude,
Unfortunately there is no on-line method to convert from v3 to v4
AdvFS on-disk structures. You must back up the existing data (disk-
to-disk using vdump|vrestore) is okay), remake the domains and
filesets and restore the data.
Steve
And my original question:
Claude Scarpelli wrote:
>
> In a mail dated April 26, Rick Beebe <richard.beebe_at_yale.edu> wrote:
> [......]
> >
> > Tru64 UNIX V5.1 provides read and write access to V4.x created AdvFS
> > file systems, although for performance and reliability reasons, you
> > would be well advised to consider migrating the file systems to the
> > new format at some point when you are convinced you'll never want to
> > go back to V4.x (since Digital UNIX V4.x aka Tru64 UNIX V4.x can NOT
> > read a V5.x formatted AdvFS file system).
> >
>
> Can the migration be done by using addvol and rmvol ? Or do you need
> to use mkfdmn, then backup and restore data to the newly created
> domain ?
>
> > Of course, if you install and then create a new TruCluster, when you
> > create the first TruCluster node, the file systems are created from
> > scratch, so your cluster root, /usr, and /var will all be in the new
> > V5.x on-disk format.
> >
> > Tom
> >
> > Dr. Thomas P. Blinn + UNIX Software Group + Compaq Computer Corporation
--
------------------------------------------------------------------------------
Claude Scarpelli | Defenestrate: to exit a window
Centre National de Séquençage - GENOSCOPE | onscreen. (Time International
2, rue Gaston Crémieux, F-91000 EVRY FRANCE | Vol 146, No. 20, Nov 13, 1995)
Received on Fri Apr 27 2001 - 16:51:09 NZST