HP XP P9500 Storage - Manual (Page 67)

7 Monitoring the system
Monitoring pairs, journals, and data paths should be checked frequently to ensure that Continuous
Access Journal pairs are operating correctly. Pair status should be checked before performing a
Continuous Access Journal operation. Each operation requires specific pair status.
Monitor pair activity and status
Monitoring the Continuous Access Journal system is an ongoing operation that should be performed
frequently to maintain your pairs.
•
When you want to perform a pair command, first check the pair’s status. Each operation
requires a specific status or 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 (PAIR), or that
differential data management is performed in the Split status (PSUS/PSUE).
Monitoring using the Remote Web Console is done at the user’s discretion. Monitoring should be
repeated frequently. Email notifications of problems can be set up using the Remote Web Console.
For details see HP P9000 Remote Web Console User Guide.
To monitor pair status
1. In Remote Web Console, Click Actions > Remote Copy > Continuous Access Journal > Pair
Operation. The Pair Operation window displays.
2. Click to change the mode from View to Modify.
3. Locate the pair to monitor. Review pair status in the Status column.
4. Select and right click a pair and then select Pair Status from the menu.
You cannot select more than one pair.
5. In the Detailed Information dialog box, view detailed information about the pair.
Pair status definitions
Status descriptions are provided as follows.
S-VOL
access P-VOL access Description Pair status
Read/Write Read/Write The volume is not assigned to a Cnt Ac-J pair. The volume does
not belong in a journal. SMPL(simplex)
When a pair is released at the secondary system, S-VOL status
changes to SMPL; the primary system detects this and changes
P-VOL status to PSUS. The pair must be released from the primary
system to change P-VOL status to SMPL.
Read Only Read/Write The initial copy operation is in progress. COPY
Read Only Read/Write The pair is synchronized. Updates to the P-VOL are duplicated
on the S-VOL. PAIR
Read Only,
unless write Read/Write The user has split the pair or released the pair; the pair is no
longer synchronized. PSUS
option is
enabled. •
The primary and secondary systems keep track of journal data
discarded during the pairsplit operation.
• When the operation is performed at the primary system, the
status of both the P-VOL and S-VOL change to PSUS.
Monitor pair activity and status 67