Field Notice: FN70538 - Required Upgrade to a Later ACI Software Release to Protect Against Premature Wear Out of Solid State Drives - Software Upgrade Recommended

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Updated:October 21, 2024
Document ID:FN70538

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Medium
Impact Rating:
Medium
First Published:
2020-Mar-24
Last Published:
2024-Oct-21
Revision:
2.0

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected


Affected Software Product Affected Release Affected Release Number Comments
NX-OS System Software-ACI 11.0 11.0(1b), 11.0(1c), 11.0(1d), 11.0(1e), 11.0(2j), 11.0(2m), 11.0(3f), 11.0(3i), 11.0(3k), 11.0(3n), 11.0(3o), 11.0(4g), 11.0(4h), 11.0(4o), 11.0(4q) 11.0(1b): Recommend Release 14.2(6d) and later for this fix
11.0(1c): Recommend Release 14.2(6d) and later for this fix
11.0(1d): Recommend Release 14.2(6d) and later for this fix
11.0(1e): Recommend Release 14.2(6d) and later for this fix
11.0(2j): Recommend Release 14.2(6d) and later for this fix
11.0(2m): Recommend Release 14.2(6d) and later for this fix
11.0(3f): Recommend Release 14.2(6d) and later for this fix
11.0(3i): Recommend Release 14.2(6d) and later for this fix
11.0(3k): Recommend Release 14.2(6d) and later for this fix
11.0(3n): Recommend Release 14.2(6d) and later for this fix
11.0(3o): Recommend Release 14.2(6d) and later for this fix
11.0(4g): Recommend Release 14.2(6d) and later for this fix
11.0(4h): Recommend Release 14.2(6d) and later for this fix
11.0(4o): Recommend Release 14.2(6d) and later for this fix
11.0(4q): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 11.1 11.1(1j), 11.1(1o), 11.1(1r), 11.1(1s), 11.1(2h), 11.1(2i), 11.1(3f), 11.1(4e), 11.1(4f), 11.1(4g), 11.1(4i), 11.1(4l), 11.1(4m) 11.1(1j): Recommend Release 14.2(6d) and later for this fix
11.1(1o): Recommend Release 14.2(6d) and later for this fix
11.1(1r): Recommend Release 14.2(6d) and later for this fix
11.1(1s): Recommend Release 14.2(6d) and later for this fix
11.1(2h): Recommend Release 14.2(6d) and later for this fix
11.1(2i): Recommend Release 14.2(6d) and later for this fix
11.1(3f): Recommend Release 14.2(6d) and later for this fix
11.1(4e): Recommend Release 14.2(6d) and later for this fix
11.1(4f): Recommend Release 14.2(6d) and later for this fix
11.1(4g): Recommend Release 14.2(6d) and later for this fix
11.1(4i): Recommend Release 14.2(6d) and later for this fix
11.1(4l): Recommend Release 14.2(6d) and later for this fix
11.1(4m): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 11.2 11.2(1i), 11.2(1k), 11.2(1m), 11.2(2g), 11.2(2h), 11.2(2i), 11.2(2j), 11.2(3c), 11.2(3e), 11.2(3h), 11.2(3m) 11.2(1i): Recommend Release 14.2(6d) and later for this fix
11.2(1k): Recommend Release 14.2(6d) and later for this fix
11.2(1m): Recommend Release 14.2(6d) and later for this fix
11.2(2g): Recommend Release 14.2(6d) and later for this fix
11.2(2h): Recommend Release 14.2(6d) and later for this fix
11.2(2i): Recommend Release 14.2(6d) and later for this fix
11.2(2j): Recommend Release 14.2(6d) and later for this fix
11.2(3c): Recommend Release 14.2(6d) and later for this fix
11.2(3e): Recommend Release 14.2(6d) and later for this fix
11.2(3h): Recommend Release 14.2(6d) and later for this fix
11.2(3m): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 11.3 11.3(1g), 11.3(1h), 11.3(1i), 11.3(1j), 11.3(2f), 11.3(2h), 11.3(2i), 11.3(2j), 11.3(2k) 11.3(1g): Recommend Release 14.2(6d) and later for this fix
11.3(1h): Recommend Release 14.2(6d) and later for this fix
11.3(1i): Recommend Release 14.2(6d) and later for this fix
11.3(1j): Recommend Release 14.2(6d) and later for this fix
11.3(2f): Recommend Release 14.2(6d) and later for this fix
11.3(2h): Recommend Release 14.2(6d) and later for this fix
11.3(2i): Recommend Release 14.2(6d) and later for this fix
11.3(2j): Recommend Release 14.2(6d) and later for this fix
11.3(2k): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 12.0 12.0(1m), 12.0(1n), 12.0(1o), 12.0(1p), 12.0(1q), 12.0(1r), 12.0(2f), 12.0(2g), 12.0(2h), 12.0(2l), 12.0(2m), 12.0(2n), 12.0(2o) 12.0(1m): Recommend Release 14.2(6d) and later for this fix
12.0(1n): Recommend Release 14.2(6d) and later for this fix
12.0(1o): Recommend Release 14.2(6d) and later for this fix
12.0(1p): Recommend Release 14.2(6d) and later for this fix
12.0(1q): Recommend Release 14.2(6d) and later for this fix
12.0(1r): Recommend Release 14.2(6d) and later for this fix
12.0(2f): Recommend Release 14.2(6d) and later for this fix
12.0(2g): Recommend Release 14.2(6d) and later for this fix
12.0(2h): Recommend Release 14.2(6d) and later for this fix
12.0(2l): Recommend Release 14.2(6d) and later for this fix
12.0(2m): Recommend Release 14.2(6d) and later for this fix
12.0(2n): Recommend Release 14.2(6d) and later for this fix
12.0(2o): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 12.1 12.1(1h), 12.1(1i), 12.1(2e), 12.1(2g), 12.1(2k), 12.1(3g), 12.1(3h) 12.1(1h): Recommend Release 14.2(6d) and later for this fix
12.1(1i): Recommend Release 14.2(6d) and later for this fix
12.1(2e): Recommend Release 14.2(6d) and later for this fix
12.1(2g): Recommend Release 14.2(6d) and later for this fix
12.1(2k): Recommend Release 14.2(6d) and later for this fix
12.1(3g): Recommend Release 14.2(6d) and later for this fix
12.1(3h): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 12.2 12.2(1n), 12.2(1o), 12.2(2e), 12.2(2f), 12.2(2i), 12.2(2j), 12.2(2k), 12.2(2q), 12.2(3j), 12.2(3p), 12.2(3r), 12.2(3s), 12.2(3t), 12.2(4f), 12.2(4p), 12.2(4q), 12.2(4r) 12.2(1n): Recommend Release 14.2(6d) and later for this fix
12.2(1o): Recommend Release 14.2(6d) and later for this fix
12.2(2e): Recommend Release 14.2(6d) and later for this fix
12.2(2f): Recommend Release 14.2(6d) and later for this fix
12.2(2i): Recommend Release 14.2(6d) and later for this fix
12.2(2j): Recommend Release 14.2(6d) and later for this fix
12.2(2k): Recommend Release 14.2(6d) and later for this fix
12.2(2q): Recommend Release 14.2(6d) and later for this fix
12.2(3j): Recommend Release 14.2(6d) and later for this fix
12.2(3p): Recommend Release 14.2(6d) and later for this fix
12.2(3r): Recommend Release 14.2(6d) and later for this fix
12.2(3s): Recommend Release 14.2(6d) and later for this fix
12.2(3t): Recommend Release 14.2(6d) and later for this fix
12.2(4f): Recommend Release 14.2(6d) and later for this fix
12.2(4p): Recommend Release 14.2(6d) and later for this fix
12.2(4q): Recommend Release 14.2(6d) and later for this fix
12.2(4r): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 12.3 12.3(1e), 12.3(1f), 12.3(1i), 12.3(1l), 12.3(1o), 12.3(1p) 12.3(1e): Recommend Release 14.2(6d) and later for this fix
12.3(1f): Recommend Release 14.2(6d) and later for this fix
12.3(1i): Recommend Release 14.2(6d) and later for this fix
12.3(1l): Recommend Release 14.2(6d) and later for this fix
12.3(1o): Recommend Release 14.2(6d) and later for this fix
12.3(1p): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 13.0 13.0(1k), 13.0(2h), 13.0(2k), 13.0(2n) 13.0(1k): Recommend Release 14.2(6d) and later for this fix
13.0(2h): Recommend Release 14.2(6d) and later for this fix
13.0(2k): Recommend Release 14.2(6d) and later for this fix
13.0(2n): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 13.1 13.1(1i), 13.1(2m), 13.1(2o), 13.1(2p), 13.1(2q), 13.1(2s), 13.1(2t), 13.1(2u), 13.1(2v) 13.1(1i): Recommend Release 14.2(6d) and later for this fix
13.1(2m): Recommend Release 14.2(6d) and later for this fix
13.1(2o): Recommend Release 14.2(6d) and later for this fix
13.1(2p): Recommend Release 14.2(6d) and later for this fix
13.1(2q): Recommend Release 14.2(6d) and later for this fix
13.1(2s): Recommend Release 14.2(6d) and later for this fix
13.1(2t): Recommend Release 14.2(6d) and later for this fix
13.1(2u): Recommend Release 14.2(6d) and later for this fix
13.1(2v): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 13.2 13.2(10e), 13.2(10f), 13.2(10g), 13.2(1l), 13.2(1m), 13.2(2l), 13.2(2o), 13.2(3i), 13.2(3n), 13.2(3o), 13.2(3r), 13.2(3s), 13.2(4d), 13.2(4e), 13.2(5d), 13.2(5e), 13.2(5f), 13.2(6i), 13.2(7f), 13.2(7k), 13.2(8d), 13.2(9b), 13.2(9f), 13.2(9h) 13.2(10e): Recommend Release 14.2(6d) and later for this fix
13.2(10f): Recommend Release 14.2(6d) and later for this fix
13.2(10g): Recommend Release 14.2(6d) and later for this fix
13.2(1l): Recommend Release 14.2(6d) and later for this fix
13.2(1m): Recommend Release 14.2(6d) and later for this fix
13.2(2l): Recommend Release 14.2(6d) and later for this fix
13.2(2o): Recommend Release 14.2(6d) and later for this fix
13.2(3i): Recommend Release 14.2(6d) and later for this fix
13.2(3n): Recommend Release 14.2(6d) and later for this fix
13.2(3o): Recommend Release 14.2(6d) and later for this fix
13.2(3r): Recommend Release 14.2(6d) and later for this fix
13.2(3s): Recommend Release 14.2(6d) and later for this fix
13.2(4d): Recommend Release 14.2(6d) and later for this fix
13.2(4e): Recommend Release 14.2(6d) and later for this fix
13.2(5d): Recommend Release 14.2(6d) and later for this fix
13.2(5e): Recommend Release 14.2(6d) and later for this fix
13.2(5f): Recommend Release 14.2(6d) and later for this fix
13.2(6i): Recommend Release 14.2(6d) and later for this fix
13.2(7f): Recommend Release 14.2(6d) and later for this fix
13.2(7k): Recommend Release 14.2(6d) and later for this fix
13.2(8d): Recommend Release 14.2(6d) and later for this fix
13.2(9b): Recommend Release 14.2(6d) and later for this fix
13.2(9f): Recommend Release 14.2(6d) and later for this fix
13.2(9h): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 14.0 14.0(1h), 14.0(2c), 14.0(3c), 14.0(3d) 14.0(1h): Recommend Release 14.2(6d) and later for this fix
14.0(2c): Recommend Release 14.2(6d) and later for this fix
14.0(3c): Recommend Release 14.2(6d) and later for this fix
14.0(3d): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 14.1 14.1(1i), 14.1(1j), 14.1(1k), 14.1(1l), 14.1(2g), 14.1(2m), 14.1(2o), 14.1(2s), 14.1(2u), 14.1(2w), 14.1(2x) 14.1(1i): Recommend Release 14.2(6d) and later for this fix
14.1(1j): Recommend Release 14.2(6d) and later for this fix
14.1(1k): Recommend Release 14.2(6d) and later for this fix
14.1(1l): Recommend Release 14.2(6d) and later for this fix
14.1(2g): Recommend Release 14.2(6d) and later for this fix
14.1(2m): Recommend Release 14.2(6d) and later for this fix
14.1(2o): Recommend Release 14.2(6d) and later for this fix
14.1(2s): Recommend Release 14.2(6d) and later for this fix
14.1(2u): Recommend Release 14.2(6d) and later for this fix
14.1(2w): Recommend Release 14.2(6d) and later for this fix
14.1(2x): Recommend Release 14.2(6d) and later for this fix
NX-OS System Software-ACI 14.2 14.2(1i), 14.2(1j), 14.2(1l), 14.2(2e), 14.2(2f), 14.2(2g), 14.2(3j), 14.2(3l), 14.2(3n), 14.2(3q), 14.2(4i), 14.2(4k), 14.2(4o), 14.2(4p), 14.2(5k), 14.2(5l), 14.2(5n) 14.2(1i): Recommend Release 14.2(6d) and later for this fix
14.2(1j): Recommend Release 14.2(6d) and later for this fix
14.2(1l): Recommend Release 14.2(6d) and later for this fix
14.2(2e): Recommend Release 14.2(6d) and later for this fix
14.2(2f): Recommend Release 14.2(6d) and later for this fix
14.2(2g): Recommend Release 14.2(6d) and later for this fix
14.2(3j): Recommend Release 14.2(6d) and later for this fix
14.2(3l): Recommend Release 14.2(6d) and later for this fix
14.2(3n): Recommend Release 14.2(6d) and later for this fix
14.2(3q): Recommend Release 14.2(6d) and later for this fix
14.2(4i): Recommend Release 14.2(6d) and later for this fix
14.2(4k): Recommend Release 14.2(6d) and later for this fix
14.2(4o): Recommend Release 14.2(6d) and later for this fix
14.2(4p): Recommend Release 14.2(6d) and later for this fix
14.2(5k): Recommend Release 14.2(6d) and later for this fix
14.2(5l): Recommend Release 14.2(6d) and later for this fix
14.2(5n): Recommend Release 14.2(6d) and later for this fix

Defect Information


Defect IDHeadline
CSCvt36458Remove ongoing SQL persistent layer for ACI switches, introducing more stateless reload scenarios
CSCvs88359opflexODev managed object causes early SSD wearout on switch
CSCvo01105Batch Adjacency Manager updates to improve SSD lifetime
CSCvs76848Switch SSD Early Wearout due to l2EpScanInfo updates
CSCvs29384Excessive SSD usage is observed

Problem Description


Cisco Nexus 9000 switches contain a Solid State Drive (SSD) that maintains all persisted storage data. If there is a condition that causes excessive writes to the SSD, the SSD lifetime might be shortened significantly.


Background


This problem exists only in Cisco Nexus 9000 Switches that run Application Centric Infrastructure (ACI) mode.

In Cisco NX-OS Software for ACI mode switch releases earlier than 14.2(6d), there are known defects that cause excessive SSD writes and might cause the switch to fail prematurely.

This field notice references Cisco bug IDs CSCvo01105, CSCvs29384, CSCvs88359, CSCvs76848, CSCvt36458, and other SSD-impacting defects in the affected software releases, and suggests a workaround.

For more information about an SSD lifetime, see the ACI Switch Node SSD Lifetime Explained document.

Cisco Nexus 9000 switches contain an SSD that maintains all persisted storage data. If there is a condition that causes excessive writes to the SSD, the SSD lifetime might be shortened significantly.

These SSD-impacting defects have been fixed in Software Releases 14.2(6d) and later.

Cisco bug ID Title Managed Objects (MOs) Affected Workaround
CSCvs29384 Excessive High SSD usage observed fvFailedEpPCont Address any faults related to Endpoint Group (EPG) deployment
CSCvs88359 opflexODev MO causes early SSD wearout on switch opflexODev Impact proportional to size of deployment; upgrade required
CSCvs76848 Switch SSD Early Wearout due to l2EpScanInfo updates l2EpScanInfo Updates are proportional to the number of Bridge Domains (BDs) deployed; upgrade required
CSCvt36458 Remove SQL persistent layer for switches All No workaround
CSCvo01105 Batch Adjacency Manager updates to improve SSD lifetime aibAdj Fix or remove any static route with an unreachable next hop

 


Problem Symptom


Excessive SSD writes might cause the switch to fail prematurely.

Wearout of the Cisco Nexus 9000 switch SSD is reported through the APIC fault infrastructure.

The faults that will be raised are as follows:

F3074: fltEqptFlashFlash-minor-alarm (80% lifetime) 
F3073: fltEqptFlashFlash-worn-out    (90% lifetime) 


Workaround/Solution


Software releases 14.2(6d) and later address the referenced defects and increase efficiency of write and store operations on the SSD. Customers must upgrade to Release 14.2(6d) or later. Because this issue can be resolved by a software upgrade, Cisco will not replace hardware impacted by this issue if the ACI fabric has not been upgraded to Release 14.2(6d) or later. 

If you have an active support contract and a software upgrade to one of the recommended releases is not feasible in the short term, contact the Cisco Technical Assistance Center (TAC), and Cisco will replace the defective SSD at no cost to the customer using On Site services but will not replace the full switch.


Revision History


VersionDescriptionSectionDate
2.0Updated the list of affected releases. Updated the workaround to indicate SSD replacements instead of switch replacements.Products Affected and Workaround/Solution2024-OCT-21
1.5Updated the Product Hierarchy MetatagsUpdated the Product Hierarchy Metatags2022-FEB-08
1.4Updated the Products Affected, Problem Description, Background, Problem Symptom, and Workaround/Solution SectionsUpdated the Products Affected, Problem Description, Background, Problem Symptom, and Workaround/Solution Sections2021-APR-29
1.3Updated the Products Affected, Defect Information, and Background SectionsUpdated the Products Affected, Defect Information, and Background Sections2021-APR-01
1.2Updated the Products Affected SectionUpdated the Products Affected Section2020-MAY-08
1.1Updated the Products Affected, Defect Information, Problem Description, Background, Problem Symptom, and Workaround/Solution SectionsUpdated the Products Affected, Defect Information, Problem Description, Background, Problem Symptom, and Workaround/Solution Sections2020-MAY-01
1.0Initial ReleaseInitial Release2020-MAR-24

For More Information

For further assistance or for more information about this field notice, contact the Cisco Technical Assistance Center (TAC) using one of the following methods:

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