HP XP P9500 Storage - Manual (Page 37)

Figure 5 Remote path between LDKC00 of P9500 and XP24000/XP20000 Disk Array
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When connecting P9500 with XP12000 Disk Array or XP24000/XP20000 Disk Array, contact
your HP representative for information regarding supported microcode versions.
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When connecting P9500 with XP12000 Disk Array, set up the P9500 using a CU:LDEV
number between 00:00 to 3F:FF, but do not use 40:00 or higher.
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When connecting P9500 with XP24000/XP20000 Disk Array, set up the P9500 volume
using a CU:LDEV number between 00:00 to EF:FF. The volume must be on LDKC00.
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Up to 32,768 volumes can be used for volume pairs.
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P9500 and XP24000/XP20000 Disk Array can be set up in 3-data-center (3DC) cascade or
multi-target configurations. These configurations are used when combining Continuous Access
Synchronous Z and Continuous Access Journal Z systems. See
“Configurations with Continuous
Access Synchronous Z” (page 145) to review these configurations. There are no restrictions for
combining primary and secondary sites between P9500 and XP24000/XP20000 Disk Array.
Guidelines for preparing systems for Cnt Ac-J Z
Use the following guidelines to ensure that your P9500 systems are ready for Cnt Ac-J Z:
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Identify the locations where your Cnt Ac-J Z primary and secondary data volumes will be
located, then install and configure the P9500 systems.
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Make sure that primary and secondary systems are configured for Remote Web Console
operations. See HP P9000 Remote Web Console User Guide for information.
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Make sure that primary and secondary systems are properly configured for Cnt Ac-J Z
operations, for example, cache memory considerations. See the entry for Cache and
Nonvolatile Storage in the requirements table,
“System requirements” (page 16) . Also consider
the amount of Cache Residency data to be stored in cache when determining the required
amount of cache.
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Make sure that primary and secondary systems have the system option modes specified that
may be required for your Cnt Ac-J Z configuration. See
“System option modes ” (page 38) ,
below, for more information.
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Make sure that primary systems are configured to report sense information to the host.
Secondary systems should also be attached to a host server to enable reporting of sense
information in the event of a problem with an S-VOL or secondary system. If the remote system
is not attached to a host, it should be attached to a primary site host server so that monitoring
can be performed.
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If power sequence control cables are used, set the power select switch for the cluster to LOCAL
to prevent the primary system from being powered off by the host. Make sure the secondary
system is not powered off during Cnt Ac-J Z operations.
Guidelines for preparing systems for Cnt Ac-J Z 37