NEC Storage S1300 User Manual page 83

DE2
(adapter)
DE1
(adapter)
Disk Array
Unit
(controller)
FC cables
Diagnosis cables
Figure 3-11 Connecting Additional Disk Enclosures to the Disk Array Unit
4. Set the AL-PA switch located on the additional disk enclosure.
The AL-PA switches on both adapters of the additional disk enclosure are
factory-set to "1". As each disk enclosure must be identified by a unique ID in the
arbitrated loop, set AL-PA switches on both adapters of the newly installed
enclosure to a value ranging between 2 and 6 that is not used by another device. For
example, set the AL-PA of the second disk enclosure connected to your disk array
unit to "2".
Note:
Both adapters on the disk enclosure must be assigned
the same AL-PA.
Upgrading the System 3-11