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HP XP P9500 User Manual Page 133

Continuous access synchronous for mainframe systems.
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This dialog box lets you view details for a selected Continuous Access Synchronous Z pair.
M-VOL and R-VOL areas
Pair Status
Pair Synchronized
RCU (or MCU) S/N and
Controller ID
Update Type
Copy Pace
Initial Copy Priority
M-VOL Fence Level
R-VOL Write
Paired Time
Last Update Time
Pair Copy Time
Time Stamp
Difference Management
CFW Data Copy
The following displays in the order shown:
LDKC number, CU number, and device ID
Emulation type
Capacity (number of cylinders)
Local volume's cache logical partition number and name.
Status of the pair's local volume. For descriptions of pair statuses, see
Progress of the initial copy as a percentage.
If you selected an M-VOL , the serial number of the RCU (remote system), and the SSID. If
you selected an R-VOL, MCU (main system) information is shown.
Controller ID and model name of the remote system.
6 is the controller ID and P9500 is the model name.
5 is the controller ID and XP24000/XP20000 Disk Array is the model name.
4 is the controller ID and XP12000 Disk Array/XP10000 Disk Array is the model name.
Data path channel type.
Program product pair type (TC). Synchronous or Synchronous-C
Number of tracks copied per interval during the initial copy. Copy pace can be 3 tracks
or 15 tracks.
This field displays only when the M-VOL is selected. It is disabled when the status becomes
Order in which initial copy/resynchronizing operations are performed on multiple pairs.
This field displays only when the M-VOL is selected. It is disabled when the status becomes
This value is 0 for pairs created with the CESTPAIR TSO command or Business Continuity
The M-VOL shows Never, Data, or Status. For more information, see prerequisites in
pairs" (page
Indicates whether write I/O to the R-VOL is enabled or disabled. When Enabled,
"Enabled/Received" or "Enabled(Not Received)" appears depending on whether I/O has
been received by the volume.
Date and time the pair was created.
Date and time pair status was last updated.
Amount of time for the actual pair creation to complete. This differs from the time displayed
in the Copy Time field on the History window, which includes the extra time used by the
system to receive the request and start the operation.
This field displays only when the M-VOL is selected.
Indicates whether or not the host I/O timestamp is transferred from the M-VOL to the R-VOL.
Method by which differential data is stored: by cylinder or by track.
Indicates whether CFW data is copied to the R-VOL or not. The Only M-VOL setting is
recommended because copying CFW data impacts storage system performance and it is
typically used for temporary files (for example, sort work datasets), which are not usually
required for disaster recovery.
"Pair status definitions"
Pair Operation window 133


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