Dell Equallogic PS6010 Storage Arrays - Hardware Owners Manual - Page 31

Identifying Control Module Failures, Understanding Failover Behavior, LEDs., Messages.

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PS6010 Hardware Maintenance Maintaining Control Modules Table 3-2: Management Port LED Descriptions LED Location Color Left (see callout 2) Off Green Right (see callout 2) Off Green Description No power or not connected to network. Connected to network. No power, not transmitting, or not receiving. Transmitting or receiving. Table 3-3: Ethernet Port 0 and 1 LED Descriptions LED Name Color ACT (see callout 3) Off Orange LNK (see callout 3) Off Green Description No power, not transmitting, or not receiving. Transmitting or receiving. No power or not connected to network. Connected to network. Identifying Control Module Failures You can identify a failure in a control module by: • LEDs. See Interpreting Control Module LEDs on page 3-2. • Messages. A message on the console, in the event log, or in the Group Manager GUI Alarms panel describes a control module failure. • Group Manager GUI and CLI output. The Member Controllers window or the member select show controllers command output shows the control module status not installed. When viewed from the rear of the array, CM0 is on the right, and CM1 is on the left. See Figure 1-3. If a control module fails, see your PS Series support provider for a replacement. Understanding Failover Behavior In a dual control module array, only one control module is active (serving network traffic) at one time. Each control module includes a battery-backed write cache for 3-3

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PS6010 Hardware Maintenance
Maintaining Control Modules
3–3
Identifying Control Module Failures
You can identify a failure in a control module by:
•
LEDs.
See
Interpreting Control Module LEDs
on page 3-2.
•
Messages.
A message on the console, in the event log, or in the Group
Manager GUI Alarms panel describes a control module failure.
•
Group Manager GUI and CLI output.
The Member Controllers window or
the
member select show controllers
command output shows the
control module status
not installed
.
When viewed from the rear of the array, CM0 is on the right, and CM1 is on the
left. See Figure 1-3.
If a control module fails, see your PS Series support provider for a replacement.
Understanding Failover Behavior
In a dual control module array, only one control module is active (serving network
traffic) at one time. Each control module includes a battery-backed write cache for
Table 3-2: Management Port LED Descriptions
LED Location
Color
Description
Left (see callout 2)
Off
No power or not connected to network.
Green
Connected to network.
Right (see callout 2)
Off
No power, not transmitting, or not receiving.
Green
Transmitting or receiving.
Table 3-3: Ethernet Port 0 and 1 LED Descriptions
LED Name
Color
Description
ACT (see callout 3)
Off
No power, not transmitting, or not receiving.
Orange
Transmitting or receiving.
LNK (see callout 3)
Off
No power or not connected to network.
Green
Connected to network.