Installing hardware, Remote copy connections – HP XP Continuous Access Software User Manual
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Installing hardware
You and the HP representative initially install the XP Continuous Access Journal hardware. To install
the hardware required for XP Continuous Access Journal operations:
1.
User: Identify the locations of the XP Continuous Access Journal primary and secondary data
volumes, so the XP Continuous Access Journal hardware can be installed and configured
properly.
2.
HP Representative: Ensure that the primary and secondary arrays are configured for XP
Command View Advanced Edition Software or XP Remote Web Console operations (for
example, SVP is connected to the LAN). See the HP StorageWorks XP Command View user
guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console user guide for
XP12000/XP10000/SVS200.
3.
HP Representative: Ensure that the primary and secondary arrays are properly configured for
XP Continuous Access Journal operations (for example, cache and NVS) (see
). Ensure that the desired system option modes are enabled (see
). Ensure that adequate cache is installed and available for XP Continuous
Access Journal operations. You must also consider the amount of XP Cache LUN data to be
stored in cache when determining the required amount of cache.
4.
HP Representative: Ensure that the primary arrays are configured to report sense information
to the hosts. Secondary arrays should also be attached to a host server to enable sense
information reporting if a problem with an secondary data volume or secondary array occurs.
If the remote site is unattended, secondary arrays should be attached to a host server at the
primary site, so the system administrator can monitor the operational condition of the secondary
arrays.
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 primary array. Also ensure that
the secondary array will not be powered off during XP Continuous Access Journal operations.
See
Power management for arrays and network relay devices
for more information about
powering off and on the primary and secondary arrays.
6.
HP Representative: Install XP Continuous Access Journal remote copy connections between
the primary and secondary arrays. The user supplies this hardware (optical fibre cables,
switches, and so on).
See
for remote copy configurations. Distribute the paths between
different storage clusters and switches to provide maximum flexibility and availability. Logical
paths between the primary and secondary arrays must be separate from logical paths between
the host and secondary array.
Remote copy connections
shows remote copy connection configurations for XP Continuous Access Journal
operations. The primary and secondary arrays of each XP Continuous Access Journal pair must
be connected using optical fiber cables. If you use multimode shortwave optical fiber cables, fibre
cables up to 1.5 km in length and up to two switches are required for distances greater than
0.5 km. If you use single-mode longwave optical fiber cables, fibre cables up to 30 km in length
and up to two switches are required for distances greater than 10 km. You can perform XP
Continuous Access Journal operations at distances of up to 30 km (18.6 miles) using standard
single-mode longwave support. For greater distances, channel extender connections are required.
You can perform XP Continuous Access Journal operations at distances of up to 30 km (18.6 miles)
using standard single-mode longwave support. For distances greater than 43 km (26.7 miles),
approved channel extender products and telecommunications lines are required.
Installing hardware
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