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Cisco Bug: CSCvt55829 - SSDs will experience data loss at 40k power on hours

Last Modified

Oct 01, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

4.0(4h)C

Description (partial)

Symptom:
Certain model Sandisk Lightning II Solid State Drives (SSD) can experience data loss once the drive reaches 40,000 power-on hours. The SSDs affected are listed below. Please see the field notice for a complete list of affected PIDs and fixed versions.

Capacity - Cisco UCS PIDS 
400G -  UCS-SD400G1KHY-EP, UCS-SD400G12S4-EP, UCS-C3X60-12G240
1.6Tb -  UCS-SD16TG1KHY-EP, UCS-SD16TB12S4-EP, UCS-C3X60-12G2160

Field Notice - https://www.cisco.com/c/en/us/support/docs/field-notices/705/fn70545.html

Conditions:
The SSD drive will report 0GB of available storage space remaining under normal operation at 40,000 (4.5 years) power-on hours. Drives go offline and become unusable after a power-cycle event.

IMPORTANT NOTICE: If the SSD reaches the 40,000 power-on hours mark, the drive will be completely unusable and will need to be replaced. Be sure to upgrade to a fixed release before this happens.
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