Many thanks to the following for their patient replies and suggestions:
Serguei Patchkovskii
Ashley Frost
alan_at_nabeth.cxo.dec.com
Dr. Tom Blinn
Jim Bostwick
dave.campbell_at_vf.vodafone.co.uk
Rand, Phil
The answer is no: the disk used for cloning must be on the same machine
as the original, and the clone must be in the same Advfs domain as the
original. Further, a clone is not a mirror.
What we want is a backup of the users' home directories on an external
drive so that, if the host or that disk fails, we can edit the fstab files
of our other systems to use the external backup and users can continue
working.
So, unless someone tells me this also won't work, or there's a better way:
we'll make the advfs on the newer machine, vdump the current ufs files
there, make the current ufs partition into advfs. After that, a crontab
job every night to vdump the working advfs to the backup.
The Question was:
Does anyone know if we can make a clone of an ADVFS filesystem, but put it
on an NFS mounted device (assuming that host's exports file allows root
access)?
We currently have a machine that NFS exports users home directories to our
other DU hosts. The disk is in a dual external scsi box, ftype=ufs. We'd
like to make an ADVFS partition on an internal disk on a newer machine and
do a vdump/vrestore of the home directories to the new ADVFS domain, then
NFS export home directories from there. Then we'd like to make the old
disk an ADVFS clone of the new (crontab each night) without moving it to
the newer machine. The reason to not move it is that it is an older scsi
device and we've been told that it would cause any new "fast scsi" devices
we externally attached to the new machine to lose their "fast scsi"
capabilities.
Received on Fri Jun 11 1999 - 18:13:44 NZST