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Dell PowerVault ME4 Series Storage System Administrator’s Guide

Updating firmware

You can update the versions of firmware in controller modules, expansion modules in drive enclosures, and disks.

If you have a dual-controller system and the Partner Firmware Update (PFU) option is enabled, updating the firmware on one controller causes the system to automatically update the firmware on the partner controller. If PFU is disabled, after updating firmware on one controller you must log into the IP address of the partner controller and perform the firmware update on that controller.

  • Ensure that the storage system is in a healthy state before starting firmware update. If the health of the system is Fault, the firmware update cannot proceed. You must resolve the problem specified by the Health Reason value on the System Overview panel before you can update the firmware.
  • If any unwritten cache data is present, firmware update will not proceed. Before you can update firmware, unwritten data must be removed from cache. For more information about the clear cache command, see the Dell PowerVault ME4 Series Storage System CLI Guide.
  • If a disk group is quarantined, contact technical support for help resolving the problem that is causing the component to be quarantined before updating the firmware.
  • To ensure success of an online update, select a period of low I/O activity. This helps the update complete as quickly as possible and avoids disruptions to host and applications due to timeouts. Attempting to update a storage system that is processing a large, I/O-intensive batch job will likely cause hosts to lose connectivity with the storage system.

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