Users Guide

Table Of Contents
NOTE:
The chassis must be turned on and all server modules must be turned o before you run the enable or disable commands. The
chassis is automatically power cycled as part of this operation. After changing the Shared PERC operation mode, it is
recommended to reset the CMC using the Troubleshooting page or the racadm racreset command.
By default if second integrated PERC 8 cards are detected, then the mode displays high availability mode.
Enabling the SPERC in external slots do not enable fault tolerance.
To enable Fault Tolerant mode for external shared PERC8, refer Enable or Disable Fault Tolerance of External RAID controller using
RACADM section.
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 o. 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 rmware and the settings of the shared PERC match to set the fault tolerant system conguration to Fault
Tolerant mode.
You can disable a peer controller only if:
All the servers in the chassis are turned o.
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 rmware 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 rmware
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 Actions drop-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.
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.
To enable or disable External Shared PERC 8 card controllers :
On the Controller Troubleshooting page, from the Actions drop-down menu for External Shared PERC 8 card in slot 5 or slot
6, select one of the following, and then click Apply.
Disable RAID Controller — Disables the RAID controller.
Managing Chassis Storage
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