Skip to main content
NetApp Knowledge Base

E-Series: Temperature exceeding limit leads to - Write-back caching forcibly disabled

Views:
280
Visibility:
Public
Votes:
0
Category:
e-series-systems
Specialty:
esg
Last Updated:

Applies to

  • NetApp E-Series
  • Battery Backup Units (BBU)

Issue

  • One time only AutoSupport / email notification is received and no further error occurs

E-Series Notification (Write-back caching forcibly disabled) CRITICAL

  • Associated events seen in Major Event Log:
B:6/3/23, 5:11:51 AM (05:11:51) 39292 212b Write-back caching forcibly disabled - Shelf 99, Bay B - Event: BAD BBU-2,3 <--CRITICAL
B:6/3/23, 5:00:10 AM (05:00:10) 39291 5023 Controller return status/function call for requested operation - Shelf 99, Bay B
---> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed
----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Warning
A:6/3/23, 4:56:45 AM (04:56:45) 39285 281b Nominal temperature exceeded - Shelf 99, Controller 2, Bay inlet <--CRITICAL
A:6/3/23, 4:56:45 AM (04:56:45) 39284 3101 Asynchronous event notification (AEN) posted for recently logged event - Shelf 99, Bay A
----> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed
----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Warning
B:6/3/23, 4:56:49 AM (04:56:49) 39290 212c Write-back caching fully restored - Shelf 99, Bay B
B:6/3/23, 4:56:46 AM (04:56:46) 39289 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: BAD BBU,Battery Unusable-2
A:6/3/23, 4:56:50 AM (04:56:50) 39288 212c Write-back caching fully restored - Shelf 99, Bay A
A:6/3/23, 4:56:46 AM (04:56:46) 39287 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: BAD BBU,Battery Unusable-0
B:6/3/23, 4:56:45 AM (04:56:45) 39286 3101 Asynchronous event notification (AEN) posted for recently logged event - Shelf 99, Bay B

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.