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Is it necessary to schedule a maintenance window to upgrade E-Series controller firmware?

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Applies to

All E-Series Firmware

Answer

  • It is often asked whether downtime is required to upgrade E-Series controller firmware.
  • NetApp E-Series storage systems are designed to be upgraded online.
  • While it is recommended to perform the upgrade process during periods of low to no I/O, as long as the host side is properly setup to failover the paths, there should be no issue with performing the upgrade while servicing I/O.
  • As part of the upgrade process, one controller will be placed in an unavailable state and each of the volumes that the controller owns will be moved to the alternate controller while the upgrade is underway.
  • After the new image is applied, that controller will reboot.
  • When complete, it will take ownership of ALL volumes while the alternate controller completes the same process.
  • Once finalized, the volumes will be redistributed back to their original preferred owner and the controllers will be upgraded.

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.