HP StorageWorks XP Replication Monitor software installation and configuration guide (T1784-96008, November 2006)

Designing systems 18
• Storage subsystem information (#3)
• Information on copy pairs not managed by a pair management server (#3)
The information in the XP Replication Monitor server database is updated periodically at specified time
intervals, or when there is a user request to update the copy pair configuration information or copy pair
status (#2).
Device Manager server on the management server
The Device Manager server collects the following information from the storage subsystems, and from the
Device Manager agent on the pair management servers and hosts, and uses this information to update the
Device Manager server database:
• Configuration information on copy pairs managed by the pair management servers (#5)
• Host information (#7)
• Storage subsystem information (#8)
• Information on copy pairs not managed by a pair management server (#8)
The information in the Device Manager server database is updated periodically at specified time intervals,
or when there is a user request to update the copy pair configuration information or copy pair status (#2).
Device Manager agent on a pair management server
The Device Manager agent collects the following information (#11) from the storage subsystem by means of
RAID Manager XP:
• Configuration information on copy pairs managed by pair management servers
In response to instructions from the Device Manager server (#6), the Device Manager agent changes the
pair status of copy pairs by means of RAID Manager XP.
XP Replication Monitor agent on a pair management server
The XP Replication Monitor agent collects the following information (#10) from the storage subsystem by
means of RAID Manager XP:
• Information indicating the pair status of copy pairs managed by pair management servers
Device Manager agent on a host
The Device Manager agent sends the IP address, mount point of the LU, and other information about the
host(#9) to the Device Manager server on the management server.
1-3-2 Flow of control and data in a mainframe system
Figure 1-4 shows the flow of control and data between programs in a mainframe system.