On Sat, Feb 08, 2003 at 10:24:15AM -0500, Mike Kershaw wrote: > IPLing from RDR has some advantages - we use common kernel images across > dozens of servers here, and can change them just by changing the kernel > image file on CMS (vs. setting each server.) > > If spool space is a problem for you, the kernel and parmlines are only > needed to actually boot - using the hcp module you can do a rdr purge > and get rid of them as one of the last steps of your boot scripts. > There shouldn't be any ill effects.
If spool space is tight, and your Linux guests have identical disk layouts (this, by the way, is no longer needed with Debian 3.0 for S/390--they only have to have the same root volume), you should save the IPL kernel in a named saved segment. In fact you should probably do this anyway; it lets you boot a little faster, and you get a couple of megs per machine that's shared storage. To do this, though, you do need to be IPLing from DASD anyway, which is going to require to you run zipl (assuming a 2.4 system) once you have an appropriate image built. Adam
