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How to calculate how long drive firmware upgrade will take on E-Series?

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Applies to

E-Series Arrays

Answer

  • This is going to depend on if the firmware is upgraded Offline (Parallel) or Online. Please see additional information below for more details on the difference.
  • Online upgrade do upgrades one drive at a time. It is estimated for about 30 seconds per drive. 
  • Offline upgrades do upgrades in parallel and can do up to 4 drives at a time depending on what NVSRAM is being used by the system.
  • These are estimates and drives may take longer or less depending on I/O to the system along with changes in NVSRAM.

Note: SSD Cache drives must be done Offline and be suspended to complete the upgrade.

Example

Consider a storage array comprised of 4 drive trays, 12 drives per tray (48 drives total). The following table shows coarse estimates for updating the firmware on all drives of the system based on a 30 seconds per drive download cycle.

Drives to download concurrently Time to update all the drives of the system
0 (Online Upgrade) 24 minutes (30 seconds per drive, 48 drives)
1 6 minutes (4 concurrent downloads, 1 drive per tray)
2 3 minutes (8 concurrent downloads, 2 drive per tray)
3 2 minutes (12 concurrent downloads, 3 drive per tray)
4 1.5 minutes (16 concurrent downloads, 4 drive per tray)

 

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.
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