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Cisco Bug: CSCuo50049 - UCS cluster is down after upgrading from 2.0.5g release to 2.0,2.1,2.2

Last Modified

Jul 07, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.0(5g)A 2.1(3c)A 2.1(3d)AS8

Description (partial)

The problem was seen intermittently after an upgrade from  earlier UCS 1.4 or 2.x release  to later  2.0, 2.1 or 2.2.x release.

UCSM cluster command timesout. UCSM switchover command does not work

CA-REGR-17-A# show cluster state
Cluster Id: 2c44765a-7dd9-11e3-a92e-00059b2030c4
Unable to communicate with UCSM controller

This issue is seen intermittently and not consistently reproducible. This issue can be seen when upgrading from 1.4, 2.0, 2.1, etc releases to higher version releases (2.0, 2.1, 2.2).
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