Loss of backend connections in MCCIP due to HSRP configuration during switch reboot
Applies to
- ONTAP 9
- Metrocluster over IP
- Shared L3 Network
- HSRP (Hot Standby Router Protocol)
Issue
- While one switch or pair of switches is rebooted in the MCCIP, all of the ISCSI connections to remote site are timing out
- There is a total loss of connection to the remote site/disks despite having the alternate path on second pair of MCCIP switches available at this time
- If ONTAP Mediator is configured and also becomes unreachable during the switch reboot, the controllers would halt with the following message
mia_mccip_local_write_partial_fail inst side:0 stats online_site_mbx_vote_cnt:3 success:2 failure U:0 L:0 R:2 M:1 success U:0 L:2 R:0 M:0
Uptime: 29m17s
System rebooting...