cpu
us sy wt id
25 12 14 49
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.3 0.9 3.2 7.9 0.0 0.0 6.0 16.6 1 1 d1
16.3 102.6 3011.8 960.0 0.5 1.0 4.3 8.3 0 48 c4t600C0FF000d0
I/O-Bound System
Field Value sar Option
%busy (% time disk is busy) >85 sar -d
%rcache (reads in buffer cache) low, <85>30 sar -u
fileserver >80
Excessive Swapping/Paging
bswot/s (ransfers from memory to disk swap area) >200 sar -w
bswin/s (transfers to memory) >200 sar -w
%swpocc (time swap queue is occupied) >10 sar -q
rflt/s (page reference fault) >0 sar -t
freemem (average pages for user processes) <100>2 sar -q
%runocc (% run queue occupied and processes not executing) >90 sar -q
Good reference site.
