DSN-4000 Series Hardware Reference Guide
19
Figure 3-3. Connecting the DSN-4000 JBOD Expansion Arrays to the DSN-4X00 Primary Array
The hard disk drives will be numbered sequentially starting with zero in the DSN-4X00
primary array, and then continuing as you add any combination of DSN-4000 JBOD expansion
arrays.
Only connect DSN-4000 JBOD Expansion Arrays to the DSN-4X00 storage
system. No other commercially-available SAS expansion arrays are
supported, and any drives in those other expansion arrays will not be found.
3.10
Powering-on the DSN-4000 JBOD Expansion Arrays
If you have connected any DSN-4000 JBOD Expansion Arrays, you should power them on
before powering-on the DSN-4X00 primary storage array. To power-on the DSN-4000 JBOD
expansion array, turn on the rocker switches on both power supplies at the rear of the unit.
When the DSN-4000 JBOD expansion array powers-on, the following actions occur:
The front panel
Power
LED turns green.
The
Power/Activity
LED on each drive carrier that contains a hard disk turns green.
The DSN-4000 JBOD expansion array runs its power-on procedure, after which the Global
Enclosure Status LED on the right front bracket turns green.
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