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Cisco Bug: CSCvv47875 - During or after upgrade to 4.02b/c, some IOs may see high latency

Last Modified

Oct 06, 2020

Products (1)

  • Cisco HyperFlex HX-Series

Known Affected Releases

4.0(2a)

Description (partial)

Symptom:
During an upgrade or after it from any release before 4.0.2b/c to a 4.0.2b/c release or later the cluster may experience higher latency for the user IO temporarily.

Conditions:
Under a combination of conditions which encompass the usage-history of the cluster, the amount of cluster usage (>50% ) and combination of workloads, the cleaner may reclaim garbage at a higher rate. This cleaning rate will adjust itself to lower intensity as space is reclaimed.
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