Skip to main content

This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

For information on migrating to InterSystems IRIS, see Why Migrate to InterSystems IRIS?


Indicates how mirror journal files are purged on the reporting async member.


[MirrorMember]   AsyncUseSystemPurgeInterval=n


AsyncMemberType indicates how the reporting async member purges mirror journal files received from the primary failover member.

  • 0 - Mirror journal files are purged immediately after being dejournaled.

  • 1- Mirror journal files are purged according to the instances journal file purge criteria.

For more information, see the Editing or Removing an Async Members section of the chapter “Mirroring” in the Cache High Availability Guide.



Range of Values


Management Portal

On the page System Administration > Configuration > Mirror Settings > Edit Async, for a reporting async member, use the Mirror Journal File Retention drop-down to determine how mirror journal files are purged.