Disk I/O problems? I think .....
Hi there,
We think we are having disk i/o problems, our vendor doesn't see any
problems, wondering if someone hs any suggestions.
We are running a Sun UltraEnterprise 4000 with a Raid5 Disk Array from
Storage Computer. The raid5 disk array is made 8 drive plus 1 extra drive
for parity. OS is Solaris 2.5.1. We are seeing high busy times and high
service times on the informix partitions.
When we do a onstat -g ioq we get the follow results:
INFORMIX-OnLine Version 7.23.UC4 -- On-Line -- Up 21 days 22:37:46 --
425008 K
bytes
AIO I/O queues:
q name/id len maxlen totalops dskread dskwrite dskcopy
kio 0 0 0 0 0 0 0
kio 1 0 22 71825973 69574788 2251185 0
kio 2 0 0 0 0 0 0
kio 3 0 25 68454336 66215030 2239306 0
kio 4 0 32 80282323 77885793 2396530 0
kio 5 0 29 57388417 55256400 2132017 0
adt 0 0 0 0 0 0 0
msc 0 0 1 769 0 0 0
aio 0 0 1 70 8 2 0
pio 0 0 1 1 0 0 0
lio 0 0 0 0 0 0 0
gfd 3 0 1 1 1 0 0
gfd 4 0 1 1 1 0 0
gfd 5 0 0 0 0 0 0
gfd 6 0 0 0 0 0 0
gfd 7 0 0 0 0 0 0
gfd 8 0 0 0 0 0 0
gfd 9 0 1 2 2 0 0
gfd 10 0 0 0 0 0 0
gfd 11 0 0 0 0 0 0
gfd 12 0 0 0 0 0 0
gfd 13 0 0 0 0 0 0
gfd 14 0 0 0 0 0 0
gfd 15 0 0 0 0 0 0
gfd 16 0 0 0 0 0 0
gfd 17 0 0 0 0 0 0
gfd 18 0 0 0 0 0 0
gfd 19 0 0 0 0 0 0
gfd 20 0 0 0 0 0 0
gfd 21 0 0 0 0 0 0
gfd 22 0 0 0 0 0 0
gfd 23 0 0 0 0 0 0
gfd 24 0 0 0 0 0 0
gfd 25 0 0 0 0 0 0
gfd 26 0 0 0 0 0 0
gfd 27 0 0 0 0 0 0
gfd 28 0 0 0 0 0 0
gfd 29 0 0 0 0 0 0
gfd 30 0 0 0 0 0 0
gfd 31 0 0 0 0 0 0
gfd 32 0 0 0 0 0 0
gfd 33 0 0 0 0 0 0
gfd 34 0 0 0 0 0 0
gfd 35 0 0 0 0 0 0
gfd 36 0 0 0 0 0 0
gfd 37 0 0 0 0 0 0
gfd 38 0 0 0 0 0 0
gfd 39 0 0 0 0 0 0
gfd 40 0 0 0 0 0 0
gfd 41 0 0 0 0 0 0
gfd 42 0 0 0 0 0 0
gfd 43 0 0 0 0 0 0
gfd 44 0 0 0 0 0 0
Does anyone know what 'kio' stands for? And I have read that if the max
len is in double digits then you may have i/o problem. Any suggestions?
Thank in advance,
Pat Militzer
pmilitzer@ultracom.com