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Cisco Bug: CSCuq83761 - Flash degrade results in controller blocking IOs when writing to flash

Last Modified

Sep 01, 2016

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

1.5(7)

Description (partial)

Symptom:
VMs freezing due to IOs being blocked because of massive amounts of logs being written to flash.  The flash started to wear out prematurely, which caused errors and timeout conditions.  ESXi then marked the VMs as offline.

Conditions:
During heavy disk IO.
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