ISA Server 2006: Cache - Current Cache Fetches Avg Ms Per Request Performance Monitor Monitor

  • ID:  Microsoft.ISAServer.2006.Cache.ServerRole.CurrentCacheFetchesAvgMsPerRequest
  • Description:  Monitors the Current Cache Fetches Avg Ms Per Request on ISA Server 2006 Cache
  • Target:  ISA Server 2006 Cache-enabled Server Role
  • Enabled:  On Essential Monitoring

Operational States

Name State Description
Over Threshold Error This is the Monitor State Value for Over Threshold.
Under Threshold Success This is the Monitor State Value for Under Threshold.

Overridable Parameters

Parameter Name Default Value Description Override
Frequency 300  
Threshold 300  

Alert Details

Monitor State Message Priority Severity Auto Resolution
Over Threshold (Error) ISA Server 2006 - Cache: Current Cache Fetches Average Ms Per Request error. Medium Warning No

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

Monitors the Current Cache Fetches Avg Ms Per Request on ISA Server 2006 Cache.

Causes

This monitor checks the average time to fetch a URL from cache. Expect 1–50 milliseconds. Suspect if more than 300.

May indicates that disk transfers are higher than capacity. For more information, see \PhysicalDisk(*)\Disk Transfers/sec.

  • Disk I/O rate. Correlates with disk seek rate, and depends on Web cache hit ratio.

  • A 10,000 RPM disk can do 100 maximum, and a 15,000 RPM disk can do 150 maximum.

  • If a disk is used only for ISA Server Web caching, and this counter is greater than the maximum, expect slow responses from ISA Server Web Proxy.

Resolutions

If no other process is using this disk, add another physical disk and define a Web cache file on it.

External References
This monitor does not contain any external references.

See Also for Internet Security and Acceleration (ISA) Server Management Pack


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