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3-7
Cabling and Configuration
Connecting to a Host System
This section describes the procedure for connecting the RAIDStation7 Ultra160
SCSI Storage Array to a single or dual host.
SCSI Storage Array to a single or dual host.
NOTE: This section describes the connectors on the RAIDStation7 Ultra160
SCSI Storage Array, it does not describe the connectors on the host. For
information relating to the host, refer to the host systems User Guide.
SCSI Storage Array, it does not describe the connectors on the host. For
information relating to the host, refer to the host systems User Guide.
Single Shelf, Single Host
In this configuration a single RAIDStation7 Ultra160 SCSI Storage Array shelf is
connected to a single host system. The SCSI cable is connected to the top I/O
connector (when Storage Array is vertically oriented) on the rear of the Storage
Array. The other end of this cable is connected to the host system (see Figure 3-
4). The First/Second shelf ID switch should be set to “First”. The Single/Dual
host ID switch should be set to “1”. The Dual VEM Enable/Disable ID switch
should be set to “0 or 1”. No terminator is required because the bottom I/O con-
nector (closest to power supplies) of each shelf has in-built termination. If there is
a cable attached to this I/O connector, termination is turned off automatically. If
there is no cable attached to this I/O connector, termination is turned on automat-
ically.
connected to a single host system. The SCSI cable is connected to the top I/O
connector (when Storage Array is vertically oriented) on the rear of the Storage
Array. The other end of this cable is connected to the host system (see Figure 3-
4). The First/Second shelf ID switch should be set to “First”. The Single/Dual
host ID switch should be set to “1”. The Dual VEM Enable/Disable ID switch
should be set to “0 or 1”. No terminator is required because the bottom I/O con-
nector (closest to power supplies) of each shelf has in-built termination. If there is
a cable attached to this I/O connector, termination is turned off automatically. If
there is no cable attached to this I/O connector, termination is turned on automat-
ically.
Figure 3-4. Cabling Single Shelf, Single Host Configuration
Mute
Temp
SCSI Out
LVD
SE
PSU 1
0
1
PSU 2
PSU 1
LVD SCSI Cable
connects to Host
connects to Host
VEM
Host
Shelf
2
0/1
0/1
1
2
1
2