All-
I'm investigating setting up LSM mirrors of /, swap1, and /usr on our backup
server to ensure high-availability of that machine. The machine is running
Digital Unix 3.2g, and all current filesystems are AdvFS, including the root
filesystem. I've used LSM & AdvFS for a while and am familiar with most of
the features of each, but I've never used any of LSM's mirroring capabilities.
My question is with regard to the restriction that "No partitions on the
mirrored disk can be in use" (page 4-3 of the Logical Storage Manager guide).
This would seem to indicate that if I use root & swap1 mirroring I cannot
use any of the rest of the disk on which root & swap1 are being mirrored to
(i.e. if rz0a is root_domain#root and rz0b is swap1 and I want to mirror
them to rz4, does that mean that rz4 can't be used for anything else?).
Is this correct, or am I misinterpreting what the restrictions really are?
The machine in question has 4 rz28m disks, two of which are currently
completely unallocated. root_domain#root and swap1 together account
for about 1/4 of rz0. If the restriction is that the disk containing the
mirror of root and swap cannot contain anything else then I'm either going to
have to "throw away" 3/4 of the space of an rz28m or get a smaller disk to
contain the mirrors of root and swap1.
I will summarize.
Tim
--
Tim Mooney mooney_at_toons.cc.ndsu.NoDak.edu
Information Technology Services (701) 231-1076 (Voice)
Room 242-J1, IACC Bldg. (701) 231-8541 (FAX)
North Dakota State University, Fargo, ND 58105
Received on Tue Oct 22 1996 - 01:49:38 NZDT