Our networking team needs to do switch maintenance (hardware and firmware)
Each of our 3270 cluster heads is connected to redundant switch pairs - the ifgrp (aka vif) is setup as a single mode:
ifgrp create single na01-vif0 e1a e1b
Current status (abbreviated for readability):
na01-vif0: 1 link, transmit 'none', Ifgrp Type 'single_mode' fail 'default' Ifgrp Status Up Addr_set up: e1b: state up, since 20Jul2012 12:01:50 (00:41:27) mediatype: auto-10g_sr-fd-up flags: enabled favored
down: e1a: state down, since 20Jul2012 12:02:21 (00:40:56) mediatype: auto-10g_sr-fd-up flags: enabled unfavored
Q: what are the recommended Netapp steps to preserve uptime with the least disruption while the networking folks upgrade each switch in turn?
thanks!