Users Guide

Running this command helps you to verify that the update has succeeded and that the new firmware is working properly, before
you update the firmware in the second CMC. When both CMCs are updated, you can use the cmcchangeover command to
restore the CMCs to their previous roles. CMC firmware revision 2.x updates both the primary CMC and the redundant CMC
without running the cmcchangeover command.
To avoid disconnecting other users during a reset, notify authorized users who may log in to CMC and check for active sessions
on the Sessions page. To open the Sessions page, click Chassis Overview in the left pane, click Network, and then click the
Sessions.
When transferring files to and from CMC, the file transfer icon spins during the transfer. If your icon is not animated, make sure
that your browser is configured to allow animations. For more information about allowing animations in the browser, see Allow
Animations in Internet Explorer.
Signed CMC Firmware Image
For VRTX CMC 2.0 and later, the firmware includes a signature. The CMC firmware verifies the signature to ensure the
authenticity of the uploaded firmware. The firmware update process is successful only if the firmware image is authenticated by
CMC to be a valid image from the service provider and has not been altered. The firmware update process is stopped if CMC
cannot verify the signature of the uploaded firmware image. A warning event is then logged and an appropriate error message is
displayed.
Signature verification can be performed on VRTX firmware versions 1.2 and later. For firmware downgrade to VRTX versions
earlier than 1.2, first update the firmware to a VRTX CMC version that is later than or equal to 1.2, but earlier than 2.0. After this
update, firmware downgrade to earlier, unsigned VRTX versions can be performed.
Updating CMC and Mainboard Firmware
The shared capabilities of External Shared PERC 8 card are not available until both CMC and mainboard firmware are updated.
NOTE:
● To view the MD12x0 cabling diagram, refer to Upgrading PowerEdge VRTX to Support Shared Storage Expansion User's
Guide or Dell Shared PowerEdge RAID Controller (PERC) 8 Cards For Dell PowerEdge VRTX Systems User’s Guide
available at dell.com/support/manuals.
● The external shared storage adapter requires that you update the CMC v2.20 or later and mainboard v2.21 or later to
support External Shared PERC 8 card.
● You cannot downgrade the CMC firmware prior to 2.2 with external shared adapters.
To update the CMC and mainboard firmware:
1. Update CMC firmware.
2. Update mainboard firmware.
3. Power down the chassis and install shared storage adapters in PCIe slot 5 and slot 6.
4. Power on chassis.
5. After powering on the chassis, update external shared storage adapters.
NOTE:
By default, the external shared External Shared PERC 8 card is in non-fault tolerant mode. It has to be changed
to Fault Tolerant mode after it is cabled appropriately. For more information, refer Upgrading PowerEdge VRTX to Support
Shared Storage Expansion.
In an event, if you want to rollback CMC or MPC/mainboard firmware or CMC and MPC firmware version, do the following
tasks:
To Rollback the CMC and mainboard firmware:
1. Power off the chassis.
2. Remove all external storage adapters from the PCI slots.
3. Power on the chassis.
4. Roll back the CMC and/or mainboard firmware.
You cannot downgrade the CMC, if external shared storage adapter is detected.
If the processes are not followed in order, system behavior becomes random and parts of the system may become unstable. The
CMC logs IOV or RAID controller messages. Only shared storage VA mappings for PERC 1 and PERC 2 are visible in the older
version of CMC. All external shared storage VA mappings do not exist in the previous version of the CMC. If an External Shared
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Updating Firmware