Users Guide

Table Of Contents
1. Power down chassis. Disconnect all SAS cables from External Shared PERC 8 cards to MD12x0 enclosures.
2. Power Up chassis.
3. Login to CMC web interface and navigate to the Storage→ Controllers→ Troubleshooting and enable Fault tolerance from the
drop-down menu for External Shared PERC 8 card in slot 5, click Apply and select disable for slot 6, and then click Apply.
4. Resetting both the PERCs may take two minutes to reflect in HA mode.
5. Power down chassis and connect the enclosures in HA Mode.
6. Power Up chassis.
7. External Shared PERC 8 card is in HighAvailabiltiy Mode and navigate to Storage→ Troubleshooting→ Setup Troubleshooting to
view the HA status.
Conversion of External Shared PERC 8 card High
Availability to Non-High Availability Mode using RACADM
Dell PowerEdge VRTX chassis must have 2 External Shared PERC 8 cards in PCI slot 5 and PCI slot 6 must be in HA mode.
Workflow
1. Power down chassis. Disconnect all SAS cables from External Shared PERC 8 cards to MD12x0 enclosures.
2. Power Up chassis.
3. Login to CMC Racadm and run the following command when the servers are in powered off state:
racadm raid set controllers:RAID.ChassisSlot.5-1 –p HighAvailabilityMode None
4. Run the command racadm raid set controllers:RAID.ChassisSlot.6-1 –p HighAvailabilityMode None on
External Shared PERC 8 card in slot 6.
5. Resetting both the PERCs may take two minutes to reflect in HA mode.
6. Power down chassis and connect the enclosures in Non-HA Mode.
7. Power Up chassis.
8. External Shared PERC 8 card is not in HighAvailabiltiy Mode and the following command is used to view the status:
racadm raid get controllers -o -p HighAvailabilityMode
Conversion of External Shared PERC 8 card Non-High
Availability to High Availability Mode using RACADM
Dell PowerEdge VRTX chassis must have External Shared PERC 8 cards in PCI slot 5 and PCI slot 6.
Workflow
1. Power down chassis. Disconnect all SAS cables from External Shared PERC 8 cards to MD12x0 enclosures.
2. Power Up chassis.
3. Login to CMC Racadm and run the following command when the servers are in powered off state:
racadm raid set controllers:RAID.ChassisSlot.5-1 –p HighAvailabilityMode ha
4. Run the command racadm raid set controllers:RAID.ChassisSlot.6-1 –p HighAvailabilityMode ha on
External Shared PERC 8 card in slot 6.
5. Resetting both the PERCs may take two minutes to reflect in HA mode.
6. Power down chassis and connect the enclosures in HA Mode.
7. Power Up chassis.
8. External Shared PERC 8 card is in HighAvailabiltiy Mode and the HA status is seen by using the following command:
racadm raid get controllers -o -p HighAvailabilityMode
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Logging in to CMC