[comp.unix.ultrix] Reconfiguring swap space for 16mb Vaxstation 3200

bferguso@ics.uci.edu (B. Ferguson) (08/02/89)

As a result of using decwindows all of our users need more swap space.

I reconfigured the partitions on ra0 to give 64880 sectors in partition
 g and changed the the config file to say:


config  vmunix  root on ra0a  swap on ra0b and ra0d size 66880    dumps on ra0b

from the previous:

config  vmunix  root on ra0a  swap on ra0b  dumps on ra0b

Now when I do pstat -s I get :

50160k swap configured
        11793k used (3195k text, 54k smem)
        4925k free, 3122k wasted, 33442k missing
avail: 7*512k 2*256k 2*128k 3*64k 1*32k 4*16k 285*1k


Can any one explain the reason for there being 33442k missing?

Thanks


Bruce.

chris@wugate.wustl.edu (Chris Myers) (08/03/89)

In article <20352@paris.ics.uci.edu> B Ferguson <bferguso@ics.uci.edu> writes:
>[...]
>config  vmunix  root on ra0a  swap on ra0b and ra0d size 66880    dumps on ra0b
>[...]
>Now when I do pstat -s I get :
>
>50160k swap configured
>        11793k used (3195k text, 54k smem)
>        4925k free, 3122k wasted, 33442k missing
>avail: 7*512k 2*256k 2*128k 3*64k 1*32k 4*16k 285*1k
>
>Can any one explain the reason for there being 33442k missing?

You need to type 'swapon /dev/ra0d' and add the following line to your
/etc/fstab file (so that it automatically adds the second swap partition
after you reboot):

	/dev/ra0d::sw:0:0:::

The kernel will only swap on the primary (first listed on the config line)
swap partition until told to do otherwise by the swapon command.  The /etc/rc
file does a swapon -a, which checks for swap partitions listed in /etc/fstab
and enables swapping on them.

Chris Myers
Office of the Network Coordinator
Washington University in St. Louis