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Note: SAS storage expansion units, such as the EXN3000 and EXN3500, do not have speed
switches.
If this system was configured by manufacturing, there are labels on the outside of the packaging
carton and on the side of the storage expansion unit chassis to indicate the order of storage expansion
units and on which node (1 or 2) the storage expansion units should be located. Make certain the
expansion units are placed and cabled according to these labels.
Setting storage expansion unit shelf IDs
Use these instructions to set the storage expansion unit shelf IDs.
Attention: The N3400 shelf ID of 00 is preset and cannot be changed.
Setting SAS expansion unit shelf IDs
A unique shelf ID (from 01 to 98) is required for each SAS storage expansion unit in a SAS stack.
1
!
Figure 6. Shelf ID tab on the EXN3000
1
Figure 7. Shelf ID button on the EXN3500
Visually verify that the shelf ID for each SAS storage expansion unit is unique. If an ID is not unique, set
the ID:
1. Remove the front bezel if you have not already removed it.
2. Press and hold the shelf ID U-shaped tab (for EXN3000) or button (for EXN3500) 1 until the first
digit blinks.
3. Press the tab or button until the correct number is displayed.
4. Repeat steps 2 and 3 for the second digit.
5. Press and hold the tab or button until the second number stops blinking.
Result: Both numbers start blinking and the Fault LED on the operations panel illuminates after about
five seconds.
6
!
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