Microsoft Exchange Performance Counters
Microsoft Exchange Mailbox Server Passive Database Copy IO Latency Requirements counters
The following table shows passive database copy I/O latency requirements counters. When these values are exceeded, the database copy may lag by not replaying logs to the passive database copy fast enough. Log replication performance may also be affected.
|Database\Database Page Fault Stalls/sec||Indicates the rate of page faults that can't be serviced because there are no pages available for allocation from the database cache.|
|MSExchange Database\I/O Database Reads (Recovery) Average Latency||Indicates the average time, in ms, to read from the database file.|
|MSExchange Database\I/O Database Writes (Recovery) Average Latency||Indicates the average time, in ms, to write to the database file.|