From: Lewars, Mitchell (EM, PTL) (mitchell.lewars@penske.com)
Date: Thu Jan 27 2005 - 11:07:24 EST
I have been asked to gather disk arm utilization stats on my E220R servers,
running Sun LDAP 5.1 SP3.
I am gathering stats via iostat but I am being asked specifically for "disk
arm utilization" information.
I am running:
iostat -pnx 1 2
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b
device
0.0 2.0 0.0 8.9 0.0 0.0 0.0 7.0 0 1
c0t0d0
0.0 23.8 0.0 899.0 0.0 0.2 0.0 7.0 0 16
c1t11d0
0.0 23.8 0.0 899.0 0.0 0.2 0.0 7.0 0 16
c1t11d0s0
Our goal is to ensure that the new Sun boxes we purchase will enough disk arms
to provide the throughput that is demanded by the LDAP.
Any recommendations, or comments are appreciated.
Mitchell Lewars
Penske Truck Leasing Co.
mitchell.lewars@penske.com
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