HP XP P9000 Continuous Access Synchronous for Mainframe Systems User Guide

8 Monitoring and maintenance
This chapter provides information and instructions for monitoring and maintaining a Cnt Ac-S Z
system.
Monitoring pair status
Monitoring the Cnt Ac-S Z system is an ongoing operation that should be performed frequently to
keep track of and maintain your pairs.
• When you want to perform a pair command, first check the pair’s status. Each operation
requires a specific status or set of statuses.
• Pair status changes when an operation is performed. Check status to see that pairs are
operating correctly and that data is updated from P-VOLs to S-VOLs in the Paired status, or
that differential data management is performed in the Suspended status.
Monitoring using the GUI is done manually. Monitoring should be repeated frequently. E-mail
notifications of problems can be set up using the GUI.
Procedure 13 To monitor pair status:
1. In Remote Web Console, click Actions > Remote Copy > Continuous Access Synchronous for
Mainframe > Pair Operation.
2. Locate the pair volume with the status you want to review. Review pair status in the Status
column.
You can view more details by right-clicking and selecting Detail.
How pair status changes
The main system changes and maintains the status of the P-VOL and is responsible for keeping the
P-VOL and its S-VOL synchronized. The remote system maintains the status of the S-VOL.
• The main system can change the status of the P-VOL and S-VOL.
• The remote system can change the status of the S-VOL but not the P-VOL. When an operation
is performed from the remote system, the main system detects a status change in the S-VOL
and then changes P-VOL status accordingly.
• The status indicates the state of the volume or pair:
A volume that is not assigned to a pair is in Simplex status.◦
◦ When a pair is started, the remote system changes the status of the P-VOL and S-VOL to
Pending. When the initial copy operation is complete, the main system changes the status
of both volumes to Duplex.
◦ When you suspend a pair, the system changes the status of the P-VOL and S-VOL to
Suspended.
◦ When a pair is suspended due to an error condition, the main/remote system changes
the P-VOL and S-VOL status to Suspended.
◦ When a pair is deleted from the main system, that system changes the status of the P-VOL
and S-VOL to Simplex.
◦ When a pair is deleted from the remote system, that system changes the S-VOL status to
Simplex, and the remote system detects the pair release and changes the P-VOL status to
Suspended.
74 Monitoring and maintenance