friedl@vsi.UUCP (Stephen J. Friedl) (08/10/88)
Hi folks,
We have a 3B15 and we want *no* dump device -- how do we do
this? /etc/system lets us specify the swap and dump partitions
with:
DUMPDEV:/dev/dsk/0s1
SWAPDEV:/dev/dsk/0s1 160992 20000
DUMPDEV is required to lie on a partition boundary, but this
isn't required for SWAPDEV. We prefer to put swap at the end of
a partition because to do otherwise means that partition can't
be used for a filesystem, and 45MB (the smallest partition) is
a pretty BMF swap area -- much larger than we need.
We had a very unfortunate experience some time ago where a
misspecified DUMPDEV ate our /usr filesystem, and we would very
much like to avoid this in the future. I suppose I can
repartition the machine to make a dump partition, but it seems
like such a waste when I want to just ignore it.
Anybody have any ideas? Hotline really had no idea what
I was talking about. We're running Sys V Release 3.1.1,
and these IDFC drives have no VTOC (fixed partition offsets).
Thanks much,
Steve
--
Steve Friedl V-Systems, Inc. +1 714 545 6442 3B2-kind-of-guy
friedl@vsi.com {backbones}!vsi.com!friedl attmail!vsi!friedl
-------Nancy Reagan on U.S. weather agencies: "Just say NOAA"------steve@csuf3b.UUCP (Steve Mitchell) (08/13/88)
friedl@vsi.UUCP (Stephen J. Friedl) wrote: #Hi folks, # # We have a 3B15 and we want *no* dump device -- how do we do #this? /etc/system lets us specify the swap and dump partitions #with: # # DUMPDEV:/dev/dsk/0s1 # SWAPDEV:/dev/dsk/0s1 160992 20000 # # DUMPDEV is required to lie on a partition boundary, but this #isn't required for SWAPDEV. We prefer to put swap at the end of #a partition because to do otherwise means that partition can't #be used for a filesystem, and 45MB (the smallest partition) is #a pretty BMF swap area -- much larger than we need. I think (!) I read that you can't move the primary swap device. The reason they let you specify anything is so you can set up MORE swap devices. # We had a very unfortunate experience some time ago where a #misspecified DUMPDEV ate our /usr filesystem, and we would very #much like to avoid this in the future. I suppose I can #repartition the machine to make a dump partition, but it seems #like such a waste when I want to just ignore it. The kernel will dump whenever it thinks it's in trouble. I'm not sure if you can make it NOT do this. That would mean something is going to get written over. # Hotline really had no idea what I was talking about. THAT'S scary. --steve -- Steve Mitchell (steve@CSUFresno.edu) ..ihnp4!csufres!caticsuf!smitch -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- "Remember, folks ... ask for those 'Bill the Cat' flammable pajamas by name. That's 'B-I-L-L.' not 'G-A-R-F-I-E-L-D.'"