About the frequency of managed host information discovery
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About the frequency of managed host information discovery

The following table describes the frequency of the managed host information updates in the Management Server database. The discovery on each managed host is divided into families to focus on a particular functional area:

Family

Frequency in minutes

Discovered information

Host

1440

The operating system, packages, and networking for the host.

Typically, most of the information that is related to this family does not change frequently.

SF

30

Volume Manager, File Systems, and the related storage network.

VCS

60

Veritas Cluster Server and the related information.

DB

60

Oracle, DB2, MSSQL, and Sybase databases and their storage dependencies.

LDR

1440

The licenses that are installed on the hosts.

NR

5

Configuration status and external faults.

Native

360

Third-party volume management information.

Zones

120

Oracle Solaris zones and their storage dependencies.

LDoms

120

Oracle Solaris LDoms, and related CPU and memory information.

VMware

360

ESX servers, virtual machines, and their storage dependencies.

Note:

This information is discovered only when Control Host Add-on is installed on a managed host that is designated as the control host.

Agentless

360

The following information on the hosts that are configured on the control host for agentless:

  • The IP addresses, operating system, and the usage of the CPU and memory

  • The host bus adapters (HBAs) on the host

  • The disks on the hosts and their correlation with the array LUNs and multipathing

  • The volumes and the volume groups on the native Volume Manager

  • The mount points of the file systems and the correlation of the file systems with the disks

  • In a VMware guest environment, the correlation of the guest with the virtual machine and the correlation of the storage in the guest with the storage exported from the ESX server.

Note:

This information is discovered only when Control Host Add-on is installed on a managed host that is designated as the control host.

Note:

The discovery for the Storage Foundation and Veritas Cluster Server families is event driven and scheduled. This means that the discovery is triggered when configuration changes occur on the managed hosts. As a result, this information must be updated in the Veritas Operations Manager database in the following update. If configuration changes are not detected on the managed hosts, the communication between the managed host and Management Server is restricted to the heartbeat communication that occurs every five minutes. You can connect a managed host to multiple Management Servers. The performance of a managed host is not affected in this scenario because the discovery happens only once. Reporting of the state as per the host configuration is done based on the number of Management Servers to which the managed host reports.

More Information

System resource requirements

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