When transferring files to and from CMC, the file transfer icon spins during the transfer. If your icon is not animated, make sure thatyour browser is configured to allow animations. For more information about allowing animations in the browser, see Allow Animationsin Internet Explorer.Signed CMC Firmware ImageFor VRTX CMC 2.0 and later, the firmware includes a signature. The CMC firmware verifies the signature to ensure the authenticityof the uploaded firmware. The firmware update process is successful only if the firmware image is authenticated by CMC to be avalid image from the service provider and has not been altered. The firmware update process is stopped if CMC cannot verify thesignature 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 earlierthan 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 FirmwareThe 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'sGuide or Dell Shared PowerEdge RAID Controller (PERC) 8 Cards For Dell PowerEdge VRTX Systems User’s Guideavailable 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 tosupport 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 toFault Tolerant mode after it is cabled appropriately. For more information, referUpgrading PowerEdge VRTX to SupportShared 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. TheCMC logs IOV or RAID controller messages. Only shared storage VA mappings for PERC 1 and PERC 2 are visible in the older versionof CMC. All external shared storage VA mappings do not exist in the previous version of the CMC. If an External Shared PERC 8 cardis inserted after the rollback, the CMC treats it as a non-shared adapter. It may happen that the HOST PERC driver does notsupport the External Shared PERC 8 card.48
