2017-07-07 12:23 PM
we're currently building a 2-node streched metrocluster, based on AFF A300 Controllers.
The customre needs a FC Frontend, so Cisco MDS 9148S switches came into place.
We have big troubles with this setup, because in case of a metrocluster switchover or switchback, the FC LIFs doesn't come up. They are getting stucked with status:
FDISC error - ID could not be acquired for this virtual port.
A manual interface reset on MDS or dis-/enable of affected LIFs will bring the LIF up, but that's not an option.
I've raised a ticket at Cisco for this and it looks like, that we hit a couple of bugs. For example this one: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCve72490
I know, there are so many Metroclusters with an MDS SAN frontend outside. Can you please provide me your running versions (NX-OS and Ontap)?
We're currently running on Ontap 9.1P2 and NX-OS 8.1.1 (recommended by Cisco).
Regards from austria.
2018-04-23 09:19 PM - edited 2018-04-24 12:36 AM
Please refer KB: https://kb.netapp.com/app/answers/answer_view/a_id/1005173
2018-04-23 11:39 PM
thanks for your link.
Unfortunately, I've no permissions to access to article.
I've found a solution by myself and I've written an blog-article about (it's in german, sorry): https://www.heiterbiswolkig.eu/?p=540
2018-04-24 12:38 AM
It is a public article.
There is an issue with the link earlier. Try https://kb.netapp.com/app/answers/answer_view/a_id/1005173
2018-04-24 02:36 AM
I had a look into the article now. thanks for sharing.
The Problem we had in this particular case isn't described in your link.
The issue we had, was a new default-setting in version 8 of the MDS firmware which is the: flogi quiesce timeout
You have to reconfigure it to zero (flogi quiesce timeout 0) in a 2-Node Metrocluster setup. If now, the LIFs will not switch into operational mode.