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

Table 5-3
LLT timer tunable parameters
Dependency with other
LLT tunable parameters
When to changeDefaultDescriptionLLT
parameter
The timer value should
always be higher than the
peertrouble timer value.
■ Change this value for
delaying or speeding up
node/link inactive
notification mechanism
as per client’s notification
processing logic.
■ Increase the value for
planned replacement of
faulty network cable
/switch.
■ In some circumstances,
when the private
networks links are very
slow or the network
traffic becomes very
bursty, increase this
value so as to avoid false
notifications of peer
death.
Set the value to 0 for
planned replacement of
faulty network cable or
faulty switch.
1600LLT marks a link of a peer
node as “inactive," if it does
not receive any packet on
that link for this timer
interval. Once a link is
marked as "inactive," LLT
will not send any data on that
link.
peerinact
This timer value should
always be lower than
peerinact timer value. Also,
It should be close to its
default value.
■ In some circumstances,
when the private
networks links are very
slow or nodes in the
cluster are very busy,
increase the value.
■ Increase the value for
planned replacement of
faulty network cable
/faulty switch.
LLT marks a high-pri link of
a peer node as "troubled", if
it does not receive any packet
on that link for this timer
interval. Once a link is
marked as "troubled", LLT
will not send any data on that
link till the link is up.
peertrouble
253Tunable parameters
About LLT tunable parameters