SUMMARY: Rediscover disk size and geometry.

Many thanks to all the respondants. Even those who just wanted to inform me
that they weren't in the office.
Thanks especially to Dan Astoorian who pointed me at the 'type' option in
'format'.
This was basically exactly what I was after - it allowed me to redetect the
layout of the disk.
The caveat on doing this is that solaris will apply a default partition
table, which you'll then have to replace with the 'original'
for the slices you want to preserve.
This, for obvious reasons, cannot be done on a 'live' filesystem, although
a umount and remount seems to suffice.

Then it's (hopefully) just a simple matter of running growfs in order to
extend the partition to the full size of the disk.

Thanks all,
Ed Rolison
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