Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ucbvax!pasteur!ames!umd5!decuac!felix!zemon
From: mason@aurora.UUCP (Tony Mason)
Newsgroups: comp.unix.ultrix
Subject: Multiple swap partitions across drives/controllers
Message-ID: <19009@felix.UUCP>
Date: 18 Jan 88 21:04:05 GMT
Sender: zemon@felix.UUCP
Reply-To: mason@aurora.UUCP (Tony Mason)
Organization: Stanford University
Lines: 22
Approved: zemon@felix.UUCP
Reply-Path:


Configuration: Ultrix 2.0-B on an 8350, 16MB, 2-KDB50's, ethernet controller,
tape controller (basically, a full bus.)  The kernel was modified to include
a packet filter.

When we first had DEC install this thing they had it swapping on two
partitions.  After modifying the kernel (including the packet filter in the
ethernet driver) we have been unable to get it to swap on multiple disks.  A
bit frustrating because the normal 'b' partition was 17MB - definitely not
enough with 16MB of memory.  Alas, attempts to add extra partitions (say
/dev/ra0b) with swapon merely gives me the error message "swapon:/dev/ra0b no
such device."  After talking with the DEC person who originally installed the
OS he said it always does this.  So I checked but it doesn't add the
partition.  So now we are swapping on /dev/ra3g (40MB is much better than
17MB) but I've got three 17MB partitions floating out there going to waste.

Any suggestions?

Tony Mason
Distributed Systems Group
Stanford University
mason@pescadero.stanford.edu