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ESS Copy Services also includes a command-line interface (CLI). The CLI is a
Java-based application package that you may optionally install on your open system
host. The CLI application provides a set of commands that allow a user to write
customized scripts for a host system that will initiate predefined tasks in an ESS
Copy Services server application. You use the set of CLI commands to indirectly
control ESS PPRC and FlashCopy tasks within an ESS Copy Services server
group. The CLI is available for the following operating systems:
v AIX
v Solaris
v HP-UX
v Windows NT 4.0
v Windows 2000
See the following ESS Web site for details about supported operating system
levels.
www.storage.ibm.com/hardsoft/products/ess/supserver.htm
Before using either the ESS Web Copy Services interface or the Open host
command-line interface, you or IBM must perform the following tasks:
1. Purchase ESS Copy Services features (FlashCopy, PPRC, or XRC).
2. If the ESS machine has already been installed, then the ESS needs to be
upgraded to the 2105 LIC code that support Copy Services.
3. IBM installs and configures the ESS. The requirements include:
a. Connect the ESS to the ESSNET Network. Install DNS (recommended)
b. Install and activate the Copy Services LIC features.
Note: LIC features for F10/F20 is capacity limited. You can use the capacity
for Flash Copy and PPRC that you purchase. LIC features should be
installed before you configure the machine.
c. For PPRC, install ESS ESCON host adapters. If you specify the ESCON
feature code with your initial order for an ESS, IBM will install the ESCON
host adapters. After initial installation, you must order an MES to have IBM
install the adapters.
Note: ESS ESCON host adapters are required for PPRC because
communication in a peer-to-peer relationship is through the ESCON
channels.
d. For each ESS cluster in a Copy Services Server Group, decide if ESS Copy
Services commands should be enabled for S/390 volumes. Enter the
information in "Appendix A. Communication Resources work sheet" on
page 85.
Note: This information should be filled out for the SSR prior to the
installation of the ESS.
e. Configure the ESS clusters for the use of ESS Web Copy Services. For
each ESS in a Copy Services Server Group, enter the IP addresses of the
ESS clusters that you have identified as the primary and backup servers in
"Appendix B. Communication Resources (ESS Web Copy Services) work
sheet" on page 89.
Chapter 2. Planning the physical configuration
43
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