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Chassis Management Controller Version 2.0 for Dell PowerEdge VRTX User's Guide

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Enabling or Disabling RAID Controller Using CMC Web Interface

For a VRTX chassis with two Shared PERC8 controllers, the Integrated 2 PERC adapter can be disabled or enabled when the Integrated 1 PERC adapter is active and all server modules are turned off. Both adapters must be enabled for fault-tolerance. The Controllers Troubleshooting page allows you to enable or disable the peer controller.
  • NOTE: To prevent loss of data, before performing controller enable or disable operations:

    • Complete all data operations such as Rebuild or Copy Back.

    • Make sure that the data volumes are in optimal state.

  • NOTE: While enabling the second PERC adapter, a warning message is displayed and the fault-tolerant status is degraded if:

    • Any of the PERC adapter settings are changed.

    • Firmware is updated.

    Make sure that the firmware and the settings of the shared PERC match to set the fault tolerant system configuration to Fault Tolerant mode.
You can disable a peer controller only if:

  • All the servers in the chassis are turned off.

  • The Integrated 1 PERC is currently the active controller.

    • NOTE: If the Integrated 1 PERC is not currently the active controller, then perform a chassis power cycle to make this the active controller.

  • Both CMCs have the same firmware version that supports this feature.

  • NOTE: After disabling Integrated 2 PERC , to replace a CMC card, it is recommended to update the CMC card with firmware version 1.35 or later, before the card is assigned to be the active CMC controller in the system. A message is displayed before you perform this action.
To enable or disable a peer controller in fault-tolerant mode using the CMC Web interface:
  1. In the left pane, click Chassis Overview > Storage > Controllers > Troubleshooting .
  2. On the Controller Troubleshooting page, from the Actionsdrop-down menu for Integrated 2 PERC, select one of the following, and then click Apply.
    • Disable RAID Controller — Disables the peer controller in fault-tolerant mode. This option is available in the drop-down menu only for the Integrated 2 PERC when it is not disabled.
    • Enable RAID Controller — Enables the peer controller in fault-tolerant mode. If the Integrated 2 PERC is already disabled, then the Enable Raid Controller option is available in the drop-down menu.
      • NOTE: For a disabled PERC, none of the other options Reset Configuration, Export TTY Log, Discard Pinned Cache, and Disable RAID Controller are available in the drop-down menu.
  • NOTE: Enabling or disabling a peer controller initiates a chassis power cycle. The changes are reflected only after the power cycle is complete.

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