Installing Hardware; Fibre Channel Remote Copy Connections - HP StorageWorks XP12000 User Manual

If these conditions occur, retry the job to complete the write operation.

Installing hardware

Initial installation of the Continuous Access XP hardware is performed by the user and the HP
representative. Hardware configurations for Continuous Access XP Synchronous and Continuous Access
XP Asynchronous are the same.
1. User: Identify locations of Continuous Access XP primary and secondary volumes (P-VOLs and
S-VOLs), so Performance Advisor XP hardware can be installed and configured properly.
NOTE:
If you are using Command View XP, proceed with step 2. Otherwise, you can use XP
Remote Web Console directly to manage MCUs and RCUs.
2. User and HP representative: Install the Command View XP management station near Continuous
Access XP MCUs, and connect the Command View XP management station to MCUs via the
internal LAN. HP recommends you also install a Command View XP management station connected
to RCUs at the remote site.
3.
HP representative: Ensure that MCUs and RCUs are properly configured for Continuous Access
XP operations (for example, cache or NVS) (see
that adequate cache is installed and available for all open systems and mainframe asynchronous
mirroring operations. Also consider the amount of HP Cache LUN XP data to be stored in cache
when determining the required amount of cache.
4.
HP representative: Ensure that MCUs are configured to report sense information to hosts. RCUs
should also be attached to a host server to enable reporting of sense information if a problem with
an S-VOL or RCU occurs. If the remote site is unattended, RCUs should be attached to a host server
at the primary site, so the system administrator can monitor operational condition of RCUs.
5.
HP representative: If power sequence control cables are used, set the power select switch for the
cluster to LOCAL to prevent the host from powering off the MCU. Also ensure that the RCU will not be
powered off during Continuous Access XP operations.
6.
HP representative: For Fibre Channel interface connections, install the Fibre Channel adapter
features. For serial interface connections, install the serial port adapter features. If the MCU and
RCU are multiplatform disk arrays, serial interfaces might be available, and additional serial port
adapter features might not be required.
7. HP representative: Install the Continuous Access XP remote copy connections between MCUs and
RCUs. The user supplies this hardware (optical fibre cables, switches, and so on). See
remote copy connections
clusters and switches to provide maximum flexibility and availability. Logical paths between the MCU
and RCU must be separate from logical paths between the host and RCU.
All remote copy activities between two XP12000/XP10000/SVS200 arrays (Continuous Access XP
Synchronous, Continuous Access XP Asynchronous, TrueCopy for z/OS Synchronous, TrueCopy for
z/OS Asynchronous) can share the same remote copy connections.

Fibre Channel remote copy connections

Figure 4 shows remote copy connection configurations for Fibre Channel interface Continuous Access XP
operations. The MCU and RCU of each Continuous Access XP pair must be connected via multimode
shortwave optical fibre cables. For multimode shortwave optical fibre cables, fibre cables up to 1.5
km in length and up to two switches are required for distances greater than 0.5 km. For single-mode
longwave optical fibre cables between two switches, fibre cables up to 1 1 km in length can be used
(.5km+10km+.5km). Using DWDM between two FC switches can allow a distance of 80km or more.
Long-distance solutions are provided using approved channel extenders and communication lines.
Cache and nonvolatile storage
for remote copy configurations. Distribute paths between different storage
(NVS)). Ensure
Continuous Access XP user guide
Fibre Channel
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