BigIP swapping

Ignore top, and run vmstat... e.g.

 

 

vmstat 10

 

 

and ignoring the first line that comes out, e.g.

 

 

vmstat[root@vltm-mb:Active] config vmstat 5

 

procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------

 

r b swpd free buff cache si so bi bo in cs us sy id wa st

 

0 0 104 105620 83296 212228 0 0 1 2 39 78 1 0 98 0 0

 

1 0 104 105568 83308 212244 0 0 0 19 358 1940 1 0 96 3 0

 

 

will show the vmstats (Virtual Memory Stats) every 5 seconds. The first line is the stats since boot. The rest are offsets from the previous line.

 

 

Unless the system is actively swapping, there's not a lot to worry about, UNLESS your sod daemon starts to get paged. If sod pages, you'll get failovers, active/active (split brain) etc... All sorts of hassels. (In short if it's a standalone system, don't worry till it pages, if it's an HA pair, you need to take action, possibly by increasing the amount of memory allocated to the linux partition. I'm not sure whether you still have to edit the grub config file after mounting the /boot filesystem with 9.4.8 or not. I suspect you do).

 

 

H