I have an unsupported legacy server:

# uname -a
AIX ibmms01 3 4 0054960A4C00

Following a period of poor performance, it was investigated using vmstat 10.
There upto 10 blocked kernel threads reported, and free memory was down to 123. The scan rate was high, 3000+ with lots of page in page out activity.

There was ample space on the file systems, the CPU was 60% idle.

The RAM was checked:

# lsps -a
Page Space Physical Volume Volume Group Size %Used Active Auto Type
hd6 hdisk0 rootvg 2272MB 50 yes yes lv
# lsdev -C | grep mem
mem0 Available 00-00 Memory
# lsattr -El mem0
size 2048 Total amount of physical memory in Mbytes False
goodsize 2048 Amount of usable physical memory in Mbytes False
#

This shows 2Gb RAM and 2 Gb swap space. Does the output of lsps -a show that only 50% of current available space is allocated for swap? If so how can the remaining 50% be allocated?

I've had a look in SMIT, but nothing seems obvious?

Thanks,

Jabberwocky