Re: IP standby query

issinoho wrote:
My question is: what constitutes the 'something'? What needs to happen on
Node A such that node B gets the live IP address?


Second question: is there any way of stimulating this swap from either of
the nodes?


For TCPIP services with just the alias strategy (no failsafe process),
it is a simple clusterwide lock. First node that gets the lock gets to
make the alias IP active. When that node goes out, the lock becomes free
and the next node then takes the lock and activates its alias.

To simulate it, upi use the IFCONFIG

I think it is

$ifconfig WE0 -alias 10.0.0.50 which will disable the alias on that
node and let the next node take it.

$ifconfig WE0 alias 10.0.0.50/16 ipmtu 1500 will re-activate the alias
on that node (will go on stand by mode if another node already has it).

WE0 is the interface name (IFCONFIG -a to get the list of interfaces on
that node)

.

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