Metrocluster EMC SRDF Version A.09.01 Release Notes, September 2010 (B6264-90032)

Timing Considerations
Metrocluster/SRDF may increase package startup time by five minutes or more. Packages
with many disk devices will take longer to start up than those with fewer devices due
to the time needed to get device status from the EMC disk array or to synchronize.
Compatibility Information and Installation Requirements
Metrocluster/SRDF has to be installed on all nodes that:
• run a package in the Serviceguard cluster, and
• whose data are on an EMC Symmetrix ICDA, and
• data are replicated to a second EMC Symmetrix ICDA using the Symmetrix Remote
Data Facility (SRDF).
Installation and configuration of Metrocluster/SRDF must be done on all the cluster
nodes as is done for any other Serviceguard package.
To use Metrocluster/SRDF, the following hardware and software must be installed and
configured on each HP 9000 server or HP Integrity server that might execute the
application package that has been configured for Metrocluster/SRDF.
Timing Considerations 9