HP Serviceguard Extended Distance Cluster for Linux A.01.01 Release Notes, Third Edition, May 2009

IMPORTANT: When configuring Modular packages with HP Serviceguard A.11.19,
the operation_sequence order, which defines the order in which the individual
script programs are executed when packages start, must be modified. By default,
the XDC script is started only after the pr_cntl script is started. The
operation_sequence order must be modified to ensure that the pr_cntl script
is started only after the XDC script is started.
By default, following is the order that is defined in the script:
operation_sequence $SGCONF/scripts/sg/pr_cntl.sh
operation_sequence $SGCONF/scripts/ext/xdc.sh
operation_sequence $SGCONF/scripts/sg/external_pre.sh
operation_sequence $SGCONF/scripts/sg/volume_group.sh
operation_sequence $SGCONF/scripts/sg/filesystem.sh
operation_sequence $SGCONF/scripts/ext/xdc_val.sh
operation_sequence $SGCONF/scripts/sg/package_ip.sh
operation_sequence $SGCONF/scripts/sg/external.sh
operation_sequence $SGCONF/scripts/sg/service.sh
The order must be changed as follows:
operation_sequence $SGCONF/scripts/ext/xdc.sh
operation_sequence $SGCONF/scripts/sg/pr_cntl.sh
operation_sequence $SGCONF/scripts/sg/external_pre.sh
operation_sequence $SGCONF/scripts/sg/volume_group.sh
operation_sequence $SGCONF/scripts/sg/filesystem.sh
operation_sequence $SGCONF/scripts/ext/xdc_val.sh
operation_sequence $SGCONF/scripts/sg/package_ip.sh
operation_sequence $SGCONF/scripts/sg/external.sh
operation_sequence $SGCONF/scripts/sg/service.sh
• Supported in storage environments where the following Fibre Channel based
arrays are used for data storage:
— HP StorageWorks Modular Storage Array - MSA1000 and MSA1500 families
— HP StorageWorks Enterprise Virtual Array (EVA) family
— HP StorageWorks XP family
• Supported in a 2 data center configuration.
• Supports 2 nodes with one node in each data center or 4 nodes with two nodes in
each data center. For information on requirements and restrictions for a 4 node
environment, see “Support for a 4-Node Cluster” (page 11).
• Quorum Server must be configured in a third location for cluster arbitration.
8 HP Serviceguard Extended Distance Cluster for Linux A.01.01 Release Notes