freemem, freeswap, swap gap on v480 and v880
Hi experts of swap space,
we have here a v480 (8GB mem) and a v880 (12GB mem).
Both are equipped with a 2GB swap partition.
v480: /dev/dsk/c1t0d0s1 118,9 16 4194800 4194160
v880: /dev/dsk/c1t0d0s1 118,1 16 4202672 4187920
If both systems are not bothered with our application and nobody is logged in, sar says:
v480: 09:00:00 954747 17476212
v880: 09:00:00 1228014 23608890
With a block size of 512 and a page size of 8192 I come to the following sizes:
v480: freemem=7821287424 bytes (7.8GB), freeswap=8947820544 bytes (8.9GB)
v880: freemem=10059890688 bytes (10GB), freeswap=12087751680 bytes (12GB)
Q1: Does this not look like, that the 2GB swap space on the v480 is not reflected in the sar output, but on the v880?
Q2: What are the missing 2GB memory used for on the v880? How to find out?
We are currently using sar, because our application has to run on v480s and v880s, but reduce the freemem value of sar to 123MB (of 8GB).
Thanks for an answer
fuchsol