> Currently, we are running > SLES10SP1 in an MVS LPAR with one ECKD disk (3390) containing the > entire / filesystem, and then a second 3390 disk for a LVM2 volume > group. Ultimately, I would like to move both the volume group and the > root filesystem to use PAV's and be able to boot this way. > > Is this possible?
While it might be possible (I know I've never tried it -- way too many moving parts for my comfort level), I'd probably try to discourage you from doing this in any case. During boot, the world is pretty fragile (especially in LPAR), and dealing with something as complicated as PAV is really going to tax what the kernel can cope with at that point in it's short life. It also makes you very susceptible to configuration problems, which are darn hard to fix in such an environment, given that you are going to end up IPLing a tape to fix things in LPAR-land. Another observation is that you *really* don't want everything in one big /. The root filesystem shouldn't change often, and you really don't want to cope with what happens when you fill it up, especially without the z/VM safety net. It's not pretty, and Oracle is badly behaved about where it puts things. Since you're in LPAR, you're kind of stuck with full volumes, though, unless you can scare up another disk pack, put it into your LVM group, and allocate the rest of the filesystems from the LVM. You really really don't want / and /boot to use anything complicated like PAV or LVM. NB: To be blunt, if you haven't hit up your local IBMer for a z/VM loaner copy, do that instead if you possibly can. It'll slow you down at this instant, but it doesn't cost anything, you're going to spend a bunch of time trying to get this to work in LPAR that will be pretty much wasted once you have VM, you'll be very frustrated, and IBM is very cooperative about lending copies of z/VM. Also, VM is much more tolerant of the environment you've described and will play WAY nicer with WLM and IRD fiddling with things behind its back. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
