#reorgvg

[rm-minus-rf]

Storage performance tuning on AIX - part 1

as a follow-up to my earlier post regarding network performance tuning on the AIX platform, this guide will further outline some other typical performance bottlenecks a server might face.

first of all, you will need to determine if a storage bottleneck exists.  to find that out, run iostat when running your job.  you will want to see if %tm_act is constantly high (90+%) and if it's all on a particular pv/disk.  if you have a mutil-disk vg setup, you may want try the following non-disruptive changes first and run your job again to see if you have performance gain:

# chlv -e'x' [lv_name]

# reorgvg [vg_name]