Qualstar XLS Series Installation Manual page 129

enumerates the SCSI HBAs first then the Fubre Channel HBAs. See
examples.
S
C
S
I
Can HBA A
Bus
S
C
S
I
Can HBA A
Bus
S
C
S
I
Can HBA A
Bus
Figure 9-2 Example of multiple SCSI and Fibre Channel HBA connections
Connecting SCSI Cables and Terminators
To connect LTO3 tape drive SCSI cables and terminators, follow these steps:
1. Connect one or more tape drives, as follows:
a.
b.
Important:
XLS Library Installation Manual
F F F
i i i
b b b
r r r
e e e
HBA B HBA C HBA D
F F
S
i i
C
b b
S
r r
I
e e
HBA B HBA C HBA D
F E E
i m m
b p p
r t t
e y y
HBA B HBA C HBA D
Connect an external SCSI cable to a tape drive.
As required, daisy chain adjacent tape drives by connecting them with a
VHDCI drive-to-drive SCSI cable.
Because the transfer rate for Ultra 160 SCSI is limited
to 160 MB/second, placing two high-speed tape drives on
a single bus may prevent both drives from streaming
data.
9
Connecting the XLS
Figure 9-2 for
9-3