Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

Table 5-2
GAB dynamic tunable parameters (continued)
Description and commandGAB parameter
Default: Disabled
This is an option in GAB which allows a node to IOFENCE (resulting
in a PANIC) if the new membership set is < 50% of the old membership
set. This option is typically disabled and is used when integrating with
other products
Enable iofence quorum
gabconfig -q
Disable iofence quorum
gabconfig -d
Quorum flag
Default: Send queue limit: 128
Default: Receive queue limit: 128
GAB queue limit option controls the number of pending message
before which GAB sets flow. Send queue limit controls the number of
pending message in GAB send queue. Once GAB reaches this limit it
will set flow control for the sender process of the GAB client. GAB
receive queue limit controls the number of pending message in GAB
receive queue before GAB send flow control for the receive side.
Set the send queue limit to specified value
gabconfig -Q sendq:value
Set the receive queue limit to specified value
gabconfig -Q recvq:value
GAB queue limit
Default: 15000(ms)
This parameter specifies the timeout (in milliseconds) for which GAB
will wait for the clients to respond to an IOFENCE message before
taking next action. Based on the value of kill_ntries , GAB will attempt
to kill client process by sending SIGABRT signal. If the client process
is still registered after GAB attempted to kill client process for the
value of kill_ntries times, GAB will halt the system after waiting for
additional isolate_timeout value.
Set the iofence timeout value to specified value in milliseconds.
gabconfig -f value
IOFENCE timeout
Tunable parameters
About GAB tunable parameters
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