Hitachi NAS Platform 4000 Series - Replacing the NVRAM Battery Module

Procedure
1. Access the server command line interface.
For information about ho
w to access the server command line interface, r
efer to the
Hitachi NAS Platform System Access Guide.
2. Log in to the server as manager with the default password of nasadmin.
These credentials provide access to the Bali console.
3. Enter the command led-identify-node x, where x is the node mentioned in
the Event Log message.
Both the server status and fault LEDs on the node will ash, allowing you to identify
the node. Refer to the Hitachi NAS Platform Command Line Reference
for more
information on the led-identify-node command.
Replacing the NVRAM battery module
You can easily replace the NVRAM battery pack in a server. The battery module is hot-
swappable; however, if possible, shutdown the server before replacing the module.
Before you begin
Identify the server model before installing the battery.
The replacement battery module is pre-assembled. Do not remove the batteries from the
case.
Important: During the replacement pr
ocedure, the NVRAM contents are not
backed up by the battery pack. If a power failure occurs during this period,
NVRAM contents may be lost. See the appropriate hardware reference or
maintenance documentation for procedures to power down a server.
Replacing the NVRAM battery module
Chapter 5: Replacing server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 69