[OpenIndiana-discuss] Virtual memory problems
carlsonj at workingcode.com
Wed Jan 11 15:33:12 UTC 2012
Gabriele Bulfon wrote:
> swap -l shows this:
By the way, "swap" has the "-h" and "-k" flags, just like df.
Note also that you can list just the swap-mounted file systems with "df
-F tmpfs -h".
> swapfile dev swaplo blocks free
> /dev/zvol/dsk/rpool/swap 179,2 8 1048568 634816
> but if I issue zfs list rpool/swap I get:
> NAME USED AVAIL REFER MOUNTPOINT
> rpool/swap 544M 11.9G 346M -
> ...confused....what is the real swap space??
> I just would like to have swap space to be 2GB at least.
> I don't think I tampered the installation, but just got this after the original install on VirtualBox.
> Is it
Things get a little complicated because total swap includes memory and
storage devices, but the "swap -l" output includes just the configured
storage, and not memory.
Try using "swap -s" (or "swap -sh") to see the actual space in use. You
should see that the "available" space matches up with the available swap
space seen by "df".
For the ZFS swap volume, you'll want to look at the "volsize" parameter.
That's what sets the actual disk area available for swap. It looks
like the existing volume was set to 500MB. Try "zfs list -o
To change the swap size, I'd do this:
# swap -d /dev/zvol/dsk/rpool/swap
# zfs volsize=2G rpool/swap
# swap -a /dev/zvol/dsk/rpool/swap
You could also create a new swap volume with the desired size, add it,
and then remove the old one.
James Carlson 42.703N 71.076W <carlsonj at workingcode.com>
More information about the OpenIndiana-discuss