Using Serviceguard Extension for RAC, 4th Edition, February 2007

Serviceguard Configuration for Oracle 10g RAC
Interface Areas
Chapter 2 39
SGeRAC configurations, the CSS MISSCOUNT value is set to 600 seconds.
Multipath failover time is typically between 30 to 120 seconds (For
information on Multipathing and HP-UX 11i v3; See “Native
Multipathing, Veritas DMP and Related Features” on page 50).
OCR and Vote Device
Shared storage for the OCR and Vote device should be on supported
shared storage volume managers with multipath configured and with
either the correct multipath failover time or CSS timeout.
Mirroring and Resilvering
On node and cluster wide failures, when SLVM mirroring is used and
Oracle resilvering is available, the recommendation for the logical
volume mirror recovery policy is set to full mirror resynchronization
(NOMWC) for control and redo files and no mirror resynchronization
(NONE) for the datafiles since Oracle would perform resilvering on the
datafiles based on the redo log.
NOTE If Oracle resilvering is not available, the mirror recovery policy should be
set to full mirror resynchronization (NOMWC) of all control, redo, and
datafiles.
Shared Storage Activation
Depending on your version of Oracle Cluster Software, the default
configuration for activation of the shared storage for Oracle Cluster
Software may be controlled by the /var/opt/oracle/oravg.conf file.
For the default configuration where the shared storage is activated by
SGeRAC before starting Oracle Cluster Software or RAC instance, the
oravg.conf file should not be present.
Listener
Automated Startup and Shutdown
CRS can be configured to automatically start, monitor, restart, and halt
listeners.