If you're using a SHARK or ICEBERG device, redefine a few volumes as 3390-9's. You don't need an IOCDS change or a power-on reset even, although you may have to vary the devices off and back on.
You can also try the logical volume manager to make a larger logical volume out of multiple physical ones. I do see that in SLES8, LVM and vgscan come up before /usr gets mounted from /etc/fstab. Not sure I'd want to rely on this, though, especially with dasd shared among many servers. It's possible to have /usr running on one server and other servers NFS mount it. It would be slow, and the primary server can't ever go down. We actually got /usr on SLES8 onto a single 3390-3 with lots of stuff on it, about 80% full. we did have to move /opt to its own partition, one of two partitions on a 3390 minidisks of 1500 cylinders, one for / and one for /opt. /home is its own (set of) minidisk(s) and we do swap in V-disk. "Great Minds discuss ideas. Average minds discuss events. Small minds discuss people." - Admiral Hyman Rickover Gordon Wolfe, Ph.D. (425)865-5940 VM Enterprise Servers, The Boeing Company > ---------- > From: Jim Sibley > Reply To: Linux on 390 Port > Sent: Wednesday, July 30, 2003 2:17 PM > To: [EMAIL PROTECTED] > Subject: Linux images greater a 3390-3 image? > > I'm assuming most zSeries system use a standard 3390-3 > volume (or less) for their base systems. What I've > noticed in the last few releases for zSeries and in > RHEL3 (beta) especially is the burgeoning size of > /usr. > > For SuSE SLES8, I could get by with moving /usr to a > separate volume and I could everything but the > document pdf's on the volume. > > I tried to install EVERYTHING on the redhat beta and I > had /usr on its own 3390-3 volume and the install > wizard said I needed another 1179 MB! (Being a > development shop, some of our people actually use a > lot of this stuff). > > In fact, after a pared down install, I only used 6% of > the / volume and 72% of the /usr volume! > > What alternatives do we have in the zSeries world for > this ever expanding filesystem? > > - Larger volumes on an RVA or Shark (which performance > less well with lots of data behind a single UCB - no > PAV's)? Do a lot of people use large volumes on shark > or RVA? Do a lot of people actually use the SCSI > feature of shark? > > - After building a minimal system, move /usr to an LVM > volume? > > - Other alternatives? > > I understand that the POSIX specs insist on certain > things, but what you end up with is about 15 > direcotries using 8% of your space and one directory > using 92%. And the software install wizards of the > major distributors follow the POSIX rules... > > > > ===== > Jim Sibley > Implementor of Linux on zSeries in the beautiful Silicon Valley > > "Computer are useless.They can only give answers." Pablo Picasso > > __________________________________ > Do you Yahoo!? > Yahoo! SiteBuilder - Free, easy-to-use web site design software > http://sitebuilder.yahoo.com > >
