Manual

Contents

1 Overview .......................................................................................... 7

2 Components ...................................................................................... 9

Front panel components ............................................................................................................... 9

Hard drive bay numbers ........................................................................................................ 9

Rear panel components ............................................................................................................... 9

Seven-segment display .............................................................................................................. 10

SAS controller .......................................................................................................................... 10

Battery .............................................................................................................................. 11

Disposing of old batteries ............................................................................................. 11

Cache module ................................................................................................................... 11

Power/UID module ................................................................................................................... 12

3 Basic operation ............................................................................... 13

Powering on/powering off ......................................................................................................... 13

Updating system firmware .......................................................................................................... 13

4 LED descriptions ............................................................................... 15

Front panel LEDs ....................................................................................................................... 15

Hard drive LEDs ........................................................................................................................ 15

Power supply LEDs .................................................................................................................... 17

Seven-segment display LEDs ....................................................................................................... 18

POST codes ....................................................................................................................... 19

Error codes ........................................................................................................................ 19

Fan module LEDs ...................................................................................................................... 20

SAS controller LEDs ................................................................................................................... 20

Power/UID module LEDs ............................................................................................................ 21

5 Troubleshooting ............................................................................... 23

If the enclosure does not initialize ............................................................................................... 23

Diagnostic steps ....................................................................................................................... 23

Is the front panel fault LED amber? ........................................................................................ 23

Is the system power LED amber? ........................................................................................... 24

Is the power supply LED amber? ........................................................................................... 24

Is the SAS controller LED amber? .......................................................................................... 25

Is the fan LED amber? ......................................................................................................... 25

Is the UID module System Status LED amber? ......................................................................... 25

Recognizing hard drive failure ............................................................................................. 25

Factors to consider before replacing hard drives .............................................................. 25

Automatic data recovery (rebuild) .................................................................................. 26

6 Support and other resources .............................................................. 29

X9720 Network Storage System Controller User Guide 3