Hitachi TrueCopy for z/OS user guide (December 2005)

TrueCopy for z/OS user guide 109
unattended, attach the RCUs to a host server at the main site so that the system administrator can monitor
the operational condition of the RCUs.
To prepare for TC390 volume pair operations, you need to identify the volumes by LDEV ID for which you
want to establish TC390 remote copy operations. You should identify volumes that are required for system
operation as well as volumes that contain important data to be backed up (for example, DB log files).
Copying these volumes to the remote site will enable faster disaster recovery than maintaining a current
version of these files at the remote site. For large databases that span multiple volumes, you should plan to
establish a TC390A consistency group for each database so that the update sequence consistency of the
database can be ensured at the remote site.
You can start creating the TC390 volume pairs as soon as you have:
• Identified the volumes that will become the TC390 M-VOLs (and R-VOLs)
• Ensured that all system and TC390 requirements have been met (see ”System Requirements” on
page 43 and ”Requirements and Restrictions” on page 45)
• Completed hardware and software installation (see ”Installing the TrueCopy Hardware” on page 47
and ”Installing the TrueCopy Software” on page 52)
• Configured the MCUs and RCUs for TC390 operations (see page 52)
NOTE: TC390 and SI390 can function together in the same XP128/XP1024/XP10000/XP12000 to
provide both internal and remote backup for your data. If you are planning to combine TC390 and SI390,
read the important configuration information in ”Combining TrueCopy with Other Data Management
Operations” on page 56.
If you will be using the TC390 software to perform remote copy operations, the management station must
be LAN-attached to the MCU of each TC390 volume pair. You should also install and attach a
management station to the RCUs at your remote site. If you will be using PPRC commands instead of
Command View XP or XP Remote Web Console, contact your HP account support representative for
information on TC390 configuration services. The following TC390 operations cannot be performed using
PPRC commands: asynchronous options, group addition/deletion, and group options. For more
information on using PPRC commands with the XP128/XP1024/XP10000/XP12000, see ”Using PPRC
Commands for TrueCopy” on page 147.
Common Procedure for TrueCopy Pair Operation
From the Pair Operations window (see ”TrueCopy Main Window (Pair Operations Window)” on
page 62), you can perform the pair setting operations. All the operations that can be performed from the
Pair Operations window have a common procedure.
To perform the pair settings operation:
1. Select a CU number in the CU Number tree.
NOTE: A CU number must be selected in the tree.
2. Select one or more devices or pairs in the Volume list.
3. Right-click to display the pop-up menu (see Figure 61). The pop-up menu consists of the following:
• Pair Status: Displays the volume status (see ”Viewing the Status of TrueCopy Volume Pairs (Pair
Status)” on page 112).
• Add Pair: Creates a volume pair using the following commands: Synchronous and Asynchronous
(see ”Creating TrueCopy Volume Pairs (Add Pair)” on page 115).
• Delete Pair: Deletes the pairs (see ”Deleting TrueCopy Volume Pairs (Delete Pair)” on page 126).
• Suspend Pair: Splits (Suspends) the pairs (see ”Suspending TrueCopy Pairs (Suspend Pair)” on
page 120).
• Resume Pair: Resumes the pairs (see ”Resuming TrueCopy Volume Pairs (Resume Pair)” on
page 123).