HP XP7 Storage - Manual (Page 8)

2 Requirements and restrictions
This topic provides system requirements and restrictions for using Compatible XRC.
Set up and requirements
System requirements
The Compatible XRC system requirements are:
•
Primary host
If the system in the primary site consists of several hosts, a SYSPLEX timer is required in the
primary host to provide a common time reference for the I/O time-stamping function.
•
Secondary host
The secondary host requires the System Data Mover (SDM) host software for remote copy
operations.
•
Primary HP XP7 Storage
The Compatible XRC software must be installed in the primary HP XP7 Storage system.
When the controller emulation type is I-2107, the Compatible XRC software must be installed.
•
Secondary HP XP7 Storage
The secondary disk array does not have to be the same make and model as the primary, but
we recommend that you use the HP XP7 Storage system as a secondary storage system. The
installation of the Compatible XRC software is not required for the secondary storage system.
•
Communication path connection
If a director (such as Ultranet) is used for connection, the maximum distance between the
primary disk array and secondary host is 20 km. ◦
◦ If a director and repeater are used for connection, the maximum distance between the
primary disk array and secondary host is 40 km.
◦ If a channel extender is used for connection, no restriction is applied to the distance
between the primary disk array and secondary host.
The following channel extenders are supported.
Brocade USD-X and 7500. Line type: ATM lines (Up to 135 Mbps), IP lines (500 Mbps).
•
Remote Web Console
You must have Remote Web Console at the primary site. The Remote Web Console secondary
windows must be enabled for Compatible XRC, and a Compatible XRC license key must be
installed in the primary array to enbable the product.
For instructions on installing and using Remote Web Console and Compatible XRC, see the HP
XP7 Remote Web Console User Guide.
8 Requirements and restrictions