"Keith" == Keith Brown keith@netapp.com writes:
>> > Will a cluster failover occur if a NIC card fails in one of >> the Keith> clustered >> > filers?
Keith> No. Generally speaking, cluster failovers occur on Keith> "catastrophic" failure events involving the systems core Keith> electronics, most of which are located on the system Keith> motherboard (processors, memory, core supporting circuitry, Keith> that type of thing). Individual I/O adapters such as NIC Keith> cards are not really "in the core", but can be protected Keith> from failure events via other means, even means that do not Keith> require you to go to the additional expense of implementing Keith> a full cluster.
Keith> For example, "simple" NIC failover capability has been Keith> introduced in Data ONTAP 5.3 release ("simple" in that you Keith> don't even need to do the full Etherchannel trunking thing Keith> anymore to get it! :-)). See:
Now I'm curious.
If you have two filers clustered and with Gigabit NICs, then each filer has (at least) two Gigabit cards, with one card active and the second card being used only if a takeover occurs.
In this situation, what would you need to do to have redundant NICs? Would you need a third NIC in each filer?
j. -- Jay Soffian jay@cimedia.com UNIX Systems Administrator 404.572.1941 Cox Interactive Media