SAN Volume Controller 2145-DH8 front panel controls and indicators

Edit online

The controls and indicators on the front panel are used for power and to indicate information such as system activity, node failures, and node identification.

Figure 1 shows the controls and indicators on the front panel of the SAN Volume Controller 2145-DH8 .

This figure shows the front panel of the SAN Volume Controller 2145-DH8 — Figure 1. SAN Volume Controller 2145-DH8 front panel

1 Hard disk drive activity LED
2 Hard disk drive status LED
3 USB port
4 Video connector
5 Operator-information panel
6 Rack release latch
7 Node status LED
8 Node fault LED
9 Battery status LED
10 Battery fault LED
11 Batteries
12 Hard disk drives (boot drives)

Node status LED

The node status LED provides the following system activity indicators:

Off: The node is not operating as a member of a system.
On: The node is operating as a member of a system.
Slow blinking: The node is in candidate or service state.
Fast blinking: The node is dumping cache and state data to the local disk in anticipation of a system restart from a pending power-off action or other controlled restart sequence.

Node fault LED

A node fault is indicated by the amber node-fault LED.

Off: The node does not have any errors that prevent it from doing I/O or the system software is not running on the node.
On: The node has an unrecoverable node error and is not part of the system.

Battery status LED

The green battery status LED indicates one of the following battery conditions.

Off: The system software is not running on the node or the state of the system cannot be saved if power to the node is lost.
Fast blinking: Battery charge level is too low for the state of the system to be saved if power to the node is lost. Batteries are charging.
Slow blinking: Battery charge level is sufficient for the state of the system to be saved once if power to the node is lost.
On: Battery charge level is sufficient for the state of the system to be saved twice if power to the node is lost.

Battery fault LED

The amber battery fault LED indicates one of the following battery conditions.

Off: The system software is not running on the node or this battery does not have a fault.
Blinking: This battery is being identified.
On: This battery has a fault. It cannot be used to save the system state if power to the node is lost.

Hard disk drive activity LED

The green drive activity LED indicates one of the following conditions.

Off: The drive is not ready for use.
Flashing: The drive is in use.
On: The drive is ready for use, but is not in use.

Hard disk drive status LED

The amber drive status LED indicates one of the following conditions.

Off: The drive is in a good state or has no power.
Blinking: The drive is being identified.
On: The drive has failed.