| 1 |
| If... |
Then... |
| Your Storage Subsystem has one controller or you are not running a host-based, multi-path driver software such as RDAC on all hosts connected to this Storage Subsystem |
|
a
|
Stop all I/O to this Storage Subsystem. |
|
b
|
Go to Step 2. |
|
| Your Storage Subsystem has two controllers and you are running a host-based, multi-path driver software such as RDAC on all hosts connected to this Storage Subsystem |
|
a
|
Highlight the controller containing the battery near expiration in the Physical View of the Subsystem Management Window. |
|
b
|
Select Controller>>Place Offline. |
|
c
|
Select Yes in the Place Offline confirmation window. |
|
d
|
Go to Step 2. |
|
|
| 2 |
Remove the controller canister. Battery replacement may involve replacing the individual battery or the entire controller canister. Consult your hardware documentation for details.
Note: Before you insert a new controller canister into a Directly Managed Storage Subsystem (refer to the Network Management Type column in the Enterprise Management Window), you must update the DHCP/BOOTP server so that it will associate the new controller's hardware Ethernet address with the host name and IP address previously assigned to the removed controller.
To update the DHCP/BOOTP server, find the entry associated with the removed controller and replace its Ethernet address with the new controller's Ethernet address. The controller's Ethernet address is located on an Ethernet ID label on the controller canister in the form xx.xx.xx.xx. If you need more details, consult the Storage System Planning Guide.
|
| 3 |
Record the installation date (today's date) and the new replacement date (according to the battery's warranty) on the battery label located on the controller canister containing the new battery. |
| 4 |
Insert the controller canister (containing the new battery) securely into place. |
| 5 |
Select the Components button on the controller enclosure in the Physical View of the Subsystem Management Window. Then, set the battery age to zero by selecting the Reset button associated with the controller canister containing the new battery. |
| 6 |
| If... |
Then... |
| You placed the controller Offline in Step 1 |
|
a
|
Highlight the Offline controller in the Physical View of the Subsystem Management Window. |
|
b
|
Select Controller>>Place Online. |
|
c
|
Select Yes in the Place Online confirmation window. |
| d |
With the same controller highlighted, select Controller>>Change Mode.
| If... |
Then... |
| The controller's Mode is Passive |
Change the controller to Active. Then, go to Step e. |
| The controller's Mode is Active |
Go to Step e. |
|
| e |
Locate the Automatic Logical Drive Transfer (ADT) entry in the Storage Subsystem Profile. To open the profile select the Storage Subsystem>>Profile menu option from the Subsystem Management Window.
| If... |
Then... |
| The Auto Logical Drive Transfer (ADT) entry is set to Disabled
OR
You ARE NOT running a host based, multi-path driver |
It may be necessary to redistribute the logical drives to their preferred controller. If the Subsystem Management Window's Storage Subsystem>>Redistribute Logical Drives menu option is visible, select the option. If the menu option is not visible, the logical drives are already associated with their preferred controllers and no action is needed
Go to Step 7. |
| The Auto Logical Drive Transfer (ADT) entry is set to Enabled
AND
You ARE running a host based, multi-path driver |
No action is required.
If logical drives need to be redistributed to their preferred controller, the host based, multi-path driver will automatically initiate the transfer.
Note that detection of a restored preferred path by the multi-path driver can take up to 10 minutes.
Go to Step 7. |
|
|
| You did not place the controller Offline in Step 1 |
Go to Step 7. |
|
| 7 |
Wait approximately 12 to 15 minutes for the battery to recharge; then, select Recheck to rerun the Recovery Guru to ensure that the failure has been fixed. |