f. Configure a domain name server (DNS) for ESS Copy Services. Enter the
information in “Appendix A. Communication Resources work sheet” on
page 85.
g. Logically configure the ESS, allocate storage, and create logical unit
numbers (LUNs).
h. Attach the ESSs to your host systems; this enables you to identify, create,
and copy volumes.
i. If the HOSTS are already installed, make sure that you are at the correct
levels of HOST Install, SDD, and CLI.
Note: There may be additional level requirements between CLI and the ESS
License Internal Code. When the SSR updates the ESS with new
microcode, there may be a CLI code update.
j. Install the command line interface (CLI) on your open system hosts. You can
use the command-line interface from your host system to invoke PPRC and
FlashCopy. CLI must have Java 1.1.8 support on the Open Host system. See
the
IBM Enterprise Storage Server Host Systems Attachment Guide
for more
information about CLI.
4. Run cfgmgr or operating system environment, to have the host system
recognize the ESS volumes.
5. Run rsTestConnection to ensure that web Copy Services is running.
6. Run rsPrimeServer on your open host system.
This script notifies the ESS Copy Services server of the mapping of your host
system disks to ESS volume serial numbers. This task allows you to view the
Host system assigned volume with the Web Copy Services interface, from the
Volume panel.
Notes:
a. You must first authorize users before they can initiate this script from your
host system. CLI commands provide security level protection. See the
IBM
Enterprise Storage Server Host Systems Attachment Guide
.
b. This script must be run whenever there are changes to the volumes
accessed on a specific host.
c. rsPrimeServer with -d option should be run when you remove a host from
attachment to the ESS machine to remove the mapping from Web Copy
Services Interface.
7. Run rsList2105s to get host disk to ESS volume association that can be used
in defining Copy Services tasks.
8. The PPRC device-physical configurations (source and target devices) must be
the same track format. Target volumes may be larger than the source volumes.
For example, you can do a FlashCopy from a 9 GB LUN to a 16 GB LUN for
data expansion.
See the
IBM Enterprise Storage Server Web Interface User’s Guide
for the
procedures on using PPRC and information about how to:
v
Define disks to the primary host
v
Access the secondary disks
v
Control volume groups
v
Perform disaster recovery
v
Migrate data between storage servers
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