Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

3-14 Preparing for TrueCopy for z/OS Operations
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Installing the Hardware
Initial installation of the TrueCopy for z/OS hardware is planned and
performed by the user and the Hitachi representative. To install the hardware
required for TCz operations:
1. User: Identify the TCz M-VOLs and R-VOLs (main and remote volumes), so
that the TCz 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 TCz
operations is 60 seconds. For MVS, the MIH value is specified in the
SYS1.PARMLIB file.
3. Hitachi Representative: Make sure that the MCU(s) and RCU(s) are
configured for the USP V Storage Navigator's operations (e.g., SVP connected
to LAN). Refer to the Storage Navigator User's Guide for information and
instructions on setting up the USP V Storage Navigator's operations.
4. Hitachi Representative: Make sure that the MCUs and RCUs are properly
configured for TCz operations (e.g., cache, NVS, DFW). If the user plans to
perform TCzA 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. Hitachi Representative: Make sure that the desired system option modes
are enabled (see Table 2-2).
6. Hitachi 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. Hitachi Representative: For fibre-channel interface connections, install the
fibre channel adapter features (e.g., DKC-F510I-32FS2, DKC-F515I-MIX2).
Please refer to the Installation section of the USP V Maintenance Manual for
detailed information and instructions.