Diagnostics and Utilities
9-13
Basics:
•
An XMI PIU is required to house the KZMSA adapter.
•
Each KZMSA has two ports. Each port has a maximum of eight nodes
per bus, including the initiator (the KZMSA adapter).
•
Each SCSI (BA655) PIU can have one or two shelves; each modular
storage shelf (BA350 DECstor/me) has a power supply and can hold
seven 3.5" SBBs (such as RZ26s or TLZ06s), two 5.25" SBBs (such as
the RZ73 drives), or a combination of these.
•
The two shelves in a SCSI PIU can each be on their own bus or can be
daisy-chained together, provided there are no conflicting SCSI nodes.
•
The system cabinet can house a maximum of two BA655 SCSI PIUs.
•
SCSI configurations are discrete within a cabinet; that is, the bus and
all nodes reside within one cabinet, either the system cabinet or the ex-
pander cabinet.
For installation, all cabling and node setting has been completed prior to
shipping. To check the configuration, check self-test and issue a show de-
vice console command:
1
The system goes through self-test. Check that the KZMSA adapter
passed self-test.
2
Issue a show device command. In this example, the KZMSA is in
slot 13 (slot D) of the XMI that is channel 0. There are two ports off
this KZMSA (see
2
). The devices from port 1 are listed first, fol-
lowed by the devices from port 2.
3
Each port connects to a shelf housing seven RZ26’s on one bus. All
devices in this example are reporting to the console and are working.