Skip to main content
NetApp Stage KB

Does Flash Cache Rewarming take place if the system panics or loses power

  1. Last updated
  2. Save as PDF

Views:
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
CORE
Last Updated:

Applies to

  • ONTAP 9
  • Flash Cache

Answer

  • Flash Cache rewarming is a feature introduced with Data ONTAP 8.1
  • The storage system retains the contents of the cache after user-initiated controller takeovers or shutdowns.
  • Rewarming can significantly reduce the warm-up time after a controller reboot or giveback, which allows the system to regain optimal performance more quickly.
  • Rewarming is enabled by default and requires no additional configuration in Data ONTAP.
  • But Flash Cache Rewarming does not take place if the system panics or loses power, or if certain commands are issued that prevent rewarming.

Additional Information

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.