Grass Valley K2 Storage System Instruction Manual v.3.2 Aug.01 2007 - Manual (Page 385)

July 3, 2007 K2 Storage System Instruction Manual 385
Replacing a controller
Replacing a controller
If the RAID chassis has a single controller (non-redundant), you must take the K2
Storage System offline before replacing a failed controller. Refer to procedures in the
Instruction Manual for your level of RAID storage chassis. The remainder of this
procedure does not apply to non-redundant systems.
If the RAID chassis has redundant controllers and is properly cabled and configured
for a redundant K2 Storage System, you can replace a failed controller while media
access is underway, as described in this procedure. When a controller detects a fault
on its redundant partner controller, the good controller disables the faulty controller
automatically. In most cases an error message informs you of the fault and when you
check the controller’s status in Storage Utility it reports as disabled.
However, you can also manually disable a controller. In the event that one of the
RAID controllers appears operational, but also reports faults through various log files
and status indicators, you can choose to disable the controller and replace it. Disabling
the controller and removing it in this way avoids interruptions in signal output that can
occur if the module fails or if it is simply hot swapped while it is the active controller.
When the replacement RAID controller module is installed, it is automatically
enabled and becomes the backup controller.
For the Level 3 primary RAID chassis with two controllers, if the replacement
controller’s firmware is not the same as the firmware on the redundant (currently
installed) controller, the firmware on the replacement controller is automatically
upgraded or downgraded to match the current system level firmware.
NOTE: Refer to the Instruction Manual for your level of RAID storage chassis for
procedures on removing and replacing the RAID controller module.
To replace a controller, do the following:
1. Open the Storage Utility.
2. Expand the tree view to display the controllers.
3. Select the controller and check its status, then proceed as follows:
• If the faulty controller reports as disabled, proceed to the next step in this
procedure.
• If the faulty controller reports as online, right-click the controller icon in the tree
view, and select Advanced | Disable Controller 0 or Disable Controller 1 , then click
OK to continue.
The RAID controller is disabled. You can check controller status in the Storage
Utility. You may need to refresh the display.
NOTE: If you accidentally disable the wrong controller, you can enable it again by
removing it and then replacing it in the chassis.
4. Remove and replace the disabled RAID controller module.
Refer to procedures in the Instruction Manual for your level of RAID storage
chassis.
5. On inserting the replacement RAID controller, it initializes and is automatically