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Chapter 3 Preparing for Universal Replicator z/OS Operations 3-13
Hitachi Universal Replicator for IBM /OS User’s Guide
Installing the Hardware
Initial installation of the URz hardware is performed by the user and the Hitachi
representative. To install the hardware required for URz operations:
1. User: Identify the locations of the URz primary and secondary data
volumes (primary data volumes and secondary data volumes), so that the
URz hardware can be installed and configured properly.
2. User and Hitachi Representative: Make sure that the primary storage
system(s) and secondary storage system(s) are configured for USP V
Storage Navigator operations (e.g., SVP connected to LAN). Refer to the
Storage Navigator User’s Guide for information and instructions on setting
up Storage Navigator operations.
3. Hitachi Representative: Make sure that the primary storage systems
and secondary storage systems are properly configured for URz operations
(e.g., cache, NVS) (see section
Cache and Nonvolatile Storage (NVS)).
Make sure that the desired system option modes are enabled (see
Table
2-3). Make sure that adequate cache is installed and available for URz
operations. You must also consider the amount of Cache Residency
Manager data to be stored in cache when determining the required amount
of cache.
4. Hitachi Representative: Make sure the primary storage systems are
configured to report sense information to the host(s). The secondary
storage systems should also be attached to a host server to enable
reporting of sense information in case of a problem with an secondary data
volume or secondary storage system. If the remote site is unattended, the
secondary storage systems should be attached to a host server at the
primary site, so that the system administrator can monitor the operational
condition of the secondary storage systems.
5. Hitachi Representative: If power sequence control cables are used, set
the power select switch for the cluster to LOCAL to prevent the primary
storage system from being powered off by the host. Also make sure the
secondary storage system will not be powered off during URz operations.
See
Setting up Remote Copy Connections for further information on
powering off/on the primary storage systems and secondary storage
systems.
6. Hitachi Representative: Install the URz remote copy connections
between the primary storage system(s) and secondary storage system(s).
This hardware (optical fibre cables, switches, etc.) is supplied by the user.
See section
Setting up Remote Copy Connections for remote copy
configurations. Distribute the paths between different storage clusters and
switches to provide maximum flexibility and availability. The logical paths
between the primary storage system and secondary storage system must
be separate from the logical paths between the host and secondary storage
system.