Chapter 2. Installing the RA8000 and ESA12000
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Additional rules for configuring SCSI buses include:
1. All devices and ports in the same column are on the same SCSI bus or port.
2. All devices in the same row (device shelf) have the same device address.
3. Devices installed must be listed in the HSZ80 and HSG80 Solutions Software SPD or
Release Notes.
4. Device address 4 and 5 are used only when the disk drive SBB has a device address
switch.
5. Device addresses are determined by the backplane connector into which the device is
inserted unless the SBB has a device address switch.
6. For the addressing of disk drive SBBs on the SCSI bus, device addresses for each
SBB in each expansion cabinet are determined by the PVA address as follows:
•
The main cabinet’s PVA address is set to PVA address 0 and device addresses in
that cabinet have addresses 0 through 3.
•
The PVA address in the first expansion cabinet is set to PVA address 2 and device
addresses in that expansion cabinet have addresses 8 through 11.
•
The PVA in the second expansion cabinet is set to PVA address 3 and device
addresses for that expansion are from 12 through 15.
Figure 2-40 helps to illustrate the addressing scheme. Figure 2-40 shows the six Ultra
Wide SCSI buses and their associated ports and device addresses.
2.5.2 Installing Power Supplies SBBs
Each power supply SBB has two green status LEDs. The upper LED indicates AC power
status and the lower LED indicates power supply status. The procedure for installing
power supplies is basically the same for installing any SBB. Refer to Figure 2-41 during
the installation.