Sun Microsystems SUN STOREDGETM 5310 NAS User Manual

Page 215

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Chapter 3

Storage Arrays

3-15

Cache Active light is off - The cache contains no data. Go to step 8.

Cache Active light is illuminated - Write-back caching is enabled and data is in the
cache. Wait for the data to clear from the cache memory and for the Fast Write Cache
or Cache Active light to turn off, and then go to step 8. For information on cache
memory protection and settings, refer to the Array Management Window online
help.

Caution –

Potential damage to drives and data loss. Turning the power off and on

without waiting for the disk drives to spin down can damage the drives and may
cause data loss. Always let at least 30 seconds elapse from when you turn off the
power until you turn it on again.

8. Turn off both power switches on the back of the command module.

8

Cache
Active

Green

On

Off (if
cache
enabled)

“Replacing
a Power
Supply” on
page 7-41

9

Fault

Amber

Off

On

10

Drive Link

Green

On

Off

11

Expansion
Port
Bypass

Amber

Off

On

Fan

12

Fan Fault

Amber

Off

On

“Replacing
a Fan” on
page 7-39

Power Supply

13

Power

Green

On

Off

“Replacing
a Power
Supply” on
page 7-41

14

Fault

Amber

Off

On

Link Rate

15

2 Gb/s
Link Rate

Green

On

Not
Applicable

Not
Applicable

16

Tray ID
Conflict

Amber

Off

On - Tray
IDs
incorrect

“Setting
the Tray ID
Switch” on
page 3-29

TABLE 3-1

Lights on the Back of a Command Module

Location

Component
Light

Color

Normal Status

Problem
Status

Procedure

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