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Cisco Bug: CSCvt06983 - storfs process on one node resulted into segmentation fault during upgrade

Last Modified

Oct 06, 2020

Products (1)

  • Cisco HyperFlex HX-Series

Known Affected Releases


Description (partial)

panic while upgrading esxi

10 node stretch cluster
HXDP 3.5(2g)
ESX VMware ESXi 6.7.0 Update 3, build-14320388 and upgrading to build 15018017

The sequence that can lead to the PANIC
- A 5x5 stretch.
- At some point, the cluster transformed into a 4x6 stretch cluster, i.e., A node's site affinity got changed from Site-A to Site-B. (Site-A: 4 nodes, Site-B: 6 nodes)
- Fail a node (let us call it node-Y) on site-A
- At this point cluster will have 6x3 nodes in an active state. (Site-A: 3 nodes, Site-B: 6 nodes)
- Trigger rebalance
- A PANIC will be observed.
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