HP StorageWorks XP Remote Web Console Software - Manual (Page 69)

Identifying the Source and Target Volumes
To prepare for TrueCopy for Mainframe pair operations, you need to identify the volumes (by LDEV
ID) for which you want to establish TrueCopy for Mainframe remote copy operations. You should
identify not only the volumes which contain the important data to be backed up (for example, DB2
log files), but also the volumes which contain the catalog and control datasets (for example, master
catalog, key user catalogs, system control datasets). Copying these datasets to the remote site will
enable faster disaster recovery than maintaining a current version of these files at the remote site.
For large databases which span multiple volumes and even multiple XP disk array, you should plan
to establish a TrueCopy for Mainframe Asynchronous consistency group for each database, so
that the update sequence consistency of the database can be ensured at the remote site.
You can start establishing the TrueCopy for Mainframe pairs as soon as you have:
•
Identified the volumes which will become the TrueCopy for Mainframe M-VOLs and R-VOLs
•
Ensured that all system and TrueCopy for Mainframe requirements have been met
•
Assessed TrueCopy for Mainframe Requirements
•
Completed hardware and software installation
•
Configured the MCUs and RCUs for TrueCopy for Mainframe operations
Installing the Hardware
Initial installation of the TrueCopy for Mainframe hardware is planned and performed by the user
and the HP representative. To install the hardware required for TrueCopy for Mainframe operations:
1. User: Identify the TrueCopy for Mainframe M-VOLs and R-VOLs (main and remote volumes),
so that the TrueCopy for Mainframe hardware can be installed and configured properly.
2. User: On the host operating system, make sure that the missing interrupt handler (MIH) value
(also called host I/O patrol time) is set high enough to accommodate the number of pairs, the
cable length between the MCUs and RCUs, and the initial copy pace. The recommended MIH
value for TrueCopy for Mainframe operations is 60 seconds. For MVS, the MIH value is
specified in the SYS1.PARMLIB file. The recommended MIH value for Compatible XRC is
different than for TrueCopy for Mainframe. If you are performing TrueCopy for Mainframe
and Compatible XRC on the same XP24000 storage system at the same time, contact your
HP representative for assistance.
3. HP Representative: Make sure that the MCU(s) and RCU(s) are configured for the Remote Web
Console's operations (for example, SVP connected to LAN). See the HP StorageWorks
XP24000/XP20000 Remote Web Console User's Guide for information and instructions on
setting up the Remote Web Console's operations.
4. HP Representative: Make sure that the MCUs and RCUs are properly configured for TrueCopy
for Mainframe operations (for example, cache, NVS, DFW). If the user plans to perform
TrueCopy for Mainframe Asynchronous, Compatible XRC, and/or Concurrent Copy operations
in the same storage system, make sure to install adequate cache to handle the increased
sidefile usage. When determining the required amount of cache, you must also consider the
amount of Cache Residency Manager data to be stored in cache.
5. HP Representative: Make sure that the desired system option modes are enabled (see “XP Disk
Array Modes for TrueCopy for Mainframe” (page 12) ).
6. HP Representative: Make sure the MCUs are configured to report sense information to the
host(s). The RCUs should also be attached to a host processor to enable reporting of sense
information in case of a problem with an R-VOL or RCU. If the remote site is unattended, the
RCUs should be attached to a host processor at the main site, so that the system administrator
can monitor the operational condition of the RCUs.
7. HP Representative: For Fibre Channel interface connections, install the Fibre Channel adapter
features (for example, DKC-F510I-32FS2, DKC-F515I-MIX2). Please see the Installation section
of the HP disk array Maintenance Manual for detailed information and instructions.
Installing the Hardware 69