On Mon, 29 Jun 1998, Brad Salai wrote:

> swapctl will let you set the priority of the swap partitions, so that I
> could make one of these other drives the primary swap device (which I
> _think_ is a good thing)

Probably depends on your situation.  FYI, the semantics don't seem to be
documented:  The swap device(s) with the lowest number will be completely
filled before the device(s) with the next higher number see any paging
activity.  (This is based on my observations of swapctl -l over time.)

> Problem is, there is currently no way to set se_priority in fstab to
> pass to swapctl.

Script started on Mon Jun 29 09:43:34 1998
mathfs:/usr/user1/cjones> cat /etc/fstab
/dev/rz0a / ffs rw 1 1
/dev/rz0b none swap sw,priority=2 0 0
/dev/rz0d /usr ffs rw 1 2
/dev/rz0f /var ffs rw 1 3
/dev/rz1b none swap sw,priority=0 0 0
/usr/local/ultrix/swapfile none swap sw,priority=1 0 0
/dev/rz3b none swap sw,priority=0 0 0
[...]
mathfs:/usr/user1/cjones> swapctl -l
Device      1K-blocks     Used    Avail Capacity  Priority
/dev/rz1b      100500        4   100496     0%    0
/dev/rz3b       28980        4    28976     0%    0
/dev/??        120000        0   120000     0%    1
/dev/rz0b      102532        4   102528     0%    2
Total          352012       12   352000     0%
mathfs:/usr/user1/cjones> exit

Script done on Mon Jun 29 09:43:44 1998

Works for me...  :)

Chris

-------------------------------------------------------------------------------
Chris Jones                                           cjones@math.montana.edu
           Mad scientist at large                     cjones@honors.montana.edu
"Is this going to be a stand-up programming session, sir, or another bug hunt?"