1) When a mirror is split, are both halves mountable and, if so,
what are their volume names?
Yes, they are mountable. Actually, SoftRAID gives you a few
options for how
the split mirror will work, e.g. non-RAID or a read-only secondary
volume.
2) Is there a command-line tool for splitting the mirror, so that it
can be used in a script like I envision for my pre- and post-backup
script?
I'm not sure. Check with the SoftRAID guys for more info.
If anything does something similar to what I would like to do, could
you please let me know if it is a workable idea? Thanks.
What you're describing is a really common use of RAID 1. I recommend
testing your plan using Apple's RAID 2 and a demo copy of SoftRAID
to see
which you like better. You should be able to test either solution
on a
regular MOSX client machine if you don't have a MOSXS test machine
available. I imagine you'll find Apple's solution to be more easily
scripted.
-Oliver
Thanks. I am RTFM-ing the diskutil man page right now. If it seems
to do the job, I won't bother with SoftRAID.
--
- Peter Schwenk
- CITA-3, Systems Administrator
- Mathematical Sciences
- University of Delaware
- (302) 831-0437
- schwenk _at_ math _dot_ udel _dot_ edu
- http://www.math.udel.edu/~schwenk
