info-vax@ucbvax.ARPA (02/19/85)
From: Ronald A. Jarrell <JARRELLRA@VPIVAX3.BITNET> There's a nasty problem I found out about by accident that hits mscp served disks (I think only those, though the list customer support read me was about 15 items long..) that releates to directories.. I ran analyze/disk/repair on my system pack (Single CPU Cluster, common system disk structure) and the XQP detected an error and crashed me... The fix was to basically double the size of ACP_DIRCACHE.. CSC said that at a minimum find the size of the largest .DIR file and make ACP_DIRCACHE twice it's block size. MAKE THIS CHANGE WITH AUTOGEN, since it requires resizing about 15 other things before you can boot. (Like making a lot bigger dynamic pool) Another neat little thing that drove me bananas (i didn't see it documented anywhere, but with 3 new shelves of manuals, I'm not surprised) was the fact that despite always dismounting the disks (and sometimes unloading) every time we brought the system up it rebuilt them anyway, because they were improperly dismounted. According to CSC this, again, is a new feature of 4.0.. It always assumes your pack was improperly dismounted and rebuilds it.. They just didn't bother to make a new message. It can be inhibited with a mount/norebuild (which will make it NEVER rebuild). You can specifically decide to rebuild it later. -Ron Jarrell Va Tech