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Cisco Bug: CSCvt35006 - Stretch cluster sees high latency/IO freeze during upgrade

Last Modified

Jul 10, 2020

Products (1)

  • Cisco HyperFlex HX-Series

Known Affected Releases

3.5(2g) 3.5(2h)

Description (partial)

Symptom:
Hyperflex datastores may report high IO latency during CRM Master failover. 

If current CRM Master node reboots, the new CRM Master initialization can take more time and results in IO latency.

Conditions:
It is most likely to hit this issue on an larger scale cluster which has been deployed for some time.
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