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

Table 5-3
LLT timer tunable parameters (continued)
Dependency with other
LLT tunable parameters
When to changeDefaultDescriptionLLT
parameter
Not applicableDo not change this value for
performance reasons.
100LLT calls its service routine
(which delivers messages to
LLT clients) after every
service timer interval.
service
Not applicableDo not change this value for
performance reasons.
30000LLT flushes stored address
of peer nodes when this
timer expires and relearns
the addresses.
arp
Not applicableDo not change this value for
performance reasons.
3000LLT sends an arp request
when this timer expires to
detect other peer nodes in
the cluster.
arpreq
About LLT flow control tunable parameters
Table 5-4 lists the LLT flow control tunable parameters. The flow control values
are set in number of packets. The lltconfig -F query can be used to display
current flow control settings.
Table 5-4
LLT flow control tunable parameters
Dependency with other
LLT tunable parameters
When to changeDefaultDescriptionLLT
parameter
This flow control value
should always be higher than
the lowwater flow control
value.
If a client generates data in
bursty manner, increase this
value to match the incoming
data rate. Note that
increasing the value means
more memory consumption
so set an appropriate value
to avoid wasting memory
unnecessarily.
Lowering the value can result
in unnecessary flow
controlling the client.
200When the number of packets
in transmit queue for a node
reaches highwater, LLT is
flow controlled.
highwater
Tunable parameters
About LLT tunable parameters
256