InfoScale™ Cluster Server 9.0 Bundled Agents Reference Guide - Solaris
- Introducing bundled agents
- Storage agents
- DiskGroup agent
- DiskGroupSnap agent
- Notes for DiskGroupSnap agent
- Sample configurations for DiskGroupSnap agent
- Disk agent
- Volume agent
- VolumeSet agent
- Sample configurations for VolumeSet agent
- Mount agent
- Sample configurations for Mount agent
- Zpool agent
- VMwareDisks agent
- SFCache agent
- Network agents
- About the network agents
- IP agent
- NIC agent
- About the IPMultiNICB and MultiNICB agents
- IPMultiNICB agent
- Sample configurations for IPMultiNICB agent
- MultiNICB agent
- Sample configurations for MultiNICB agent
- DNS agent
- Agent notes for DNS agent
- About using the VCS DNS agent on UNIX with a secure Windows DNS server
- Sample configurations for DNS agent
- File share agents
- NFS agent
- NFSRestart agent
- Share agent
- About the Samba agents
- NetBios agent
- Service and application agents
- AlternateIO agent
- Apache HTTP server agent
- Application agent
- Notes for Application agent
- Sample configurations for Application agent
- CoordPoint agent
- LDom agent
- Dependencies
- Process agent
- Usage notes for Process agent
- Sample configurations for Process agent
- ProcessOnOnly agent
- Project agent
- RestServer agent
- Zone agent
- Infrastructure and support agents
- Testing agents
- Replication agents
Using the Zone agent with IMF
If you use IMF for intelligent resource monitoring, review the following recommendations.
Set the value of the MonitorFreq key to a high value to ensure that the agent does not run the traditional monitor function frequently.
Monitor the health of the storage, on which the zone root is created, using one of the storage agents such as Mount, Zpool, or Volume. The Zone agent should have a dependency on the storage agent as depicted in Dependencies.
The Zpool agent is not IMF aware. Hence, if the Zpool agent is used to monitor the zone root mount point, then no instantaneous notification will be received in case the zone root mount point is un-mounted externally. Still, traditional monitoring of Zpool will detect failure of the mount point.
When you run the svcadm command to update the state of a service, outside of VCS control, IMF notifies the Zone agent. If IMF falsely notifies about an update to the state of the service group, the state of the resource does not change. Thereafter, the Zone agent reregisters events with IMF.
Note:
With the zone agent registered to IMF for Online or Offline monitoring, if the IMF notification to the Zone agent is false, agent framework schedules the zone monitor. Zone monitor verifies and confirms that there is no change in the state of the resource. Thereafter, Zone agent reregisters the events with IMF.
Zone agent registered to IMF for Directory Online event
The Directory Online event monitors the Zone root directory. If the parent directory of the Zone root directory is deleted or moved to another location, AMF does not provide notification to the Zone agent. In the next cycle of the zone monitor, it detects the change and reports the state of the resource as offline.