Microsoft Exchange 2000 Operation Manual page 68

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Microsoft Exchange 2000 Operations Guide — Version 1.0
Table 4.2 Subjects and Associated Objects and Counters
Subsystem Object
Disk Logical Disk
Physical Disk
Physical Disk
Physical Disk
Physical Disk
Physical Disk
Physical Disk
Memory Memory
Memory
Memory
Memory
Paging File
Process
Counter Exchange Comments
% Free Disk Space
% Disk Time Usually unreliable for RAID systems,
so rarely applicable
Disk Reads/sec
Disk Writes/sec
Current Disk Should occasionally dip to zero
Queue Length
Avg secs per read Should be analogous to published
disk speed
Avg secs per write Should be analogous to published
disk speed or 1-2ms if you have write
back caching enabled on your RAID
controller
Committed Bytes
Pages/sec Exchange 2000 makes heavy use of a
pagefile. A large amount of paging is
not in itself an indication of a problem.
Page Reads/sec Value should generally be below 100.
If the value is consistently high, you
may need to increase system
memory.
Page Writes/sec Value should generally be below 100.
If the value is consistently high, you
may need to increase system
memory.
% Usage You may need to increase the size of
your pagefile for Exchange. Try to
keep this counter below 70%.
Page Faults/sec