Gateway 850, Руководство пользователя, Страница: 26 / 88

22
Chapter 2: Setup and Installation
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In dual-bus mode, the Channel 1 connector on the SAF-TE Disk I/O card
provides access to drives 7 through 12 and the Channel 2 connector provides
access to drives 1 through 6.
For dual-bus mode, you must remove the single-bus module from the enclosure.
For instructions, see “Converting to a dual-backplane device” on page 6.
In the preceding logical view diagrams, the drive slots are used to indicate which
drives are connected to which channel. They should not be confused with the
drive SCSI IDs. Those IDs are pre-determined by the SCSI Disk I/O card switch
settings.
To set the bus mode on the SAF-TE Disk I/O card:
1
Remove the SAF-TE Disk I/O card installed in the enclosure. Loosen the
two thumb screws and pull the card from its slot location.
2
Locate the switches on the card and set them as described in the following
switch setting diagrams. Some configurations have multiple switch setting
options available. Choose the setting that is appropriate for your system.
SAF-TE Disk I/O card switch and jumper locations
JP7
ADD
JU
MPE
R
TO D
ISAB
LE
TER
MIN
ATIO
N
JP8
CN
FG 1 CNFG 2
RAID
SP
ARE 1 SP
AR
E 2
BAUD SEL
DL
Y STR
T
RM
T S
TRT
ADD
JU
MPE
R
TO D
ISAB
LE
TER
MIN
ATIO
N
CHANNEL
-1
CHANNEL
-2
R
D A
0
1 2 3 4 5 6 7 8
A
1
S
0
S
1
B
D D
L
R
M
UP (Off -1)
Channel 2
Termination Jumper
Channel 1
Termination Jumper
Channel 1
Channel 2
DOWN (On -0)
Conf
igu
ra
tion
1
C
onf
igu
ra
tion
2
RA
ID
S
pa
re
1
S
pa
re
2
B
A
UD
R
ate
S
ele
ct
D
el
ay
D
rive
St
ar
t
Re
m
ot
e
D
rive
St
art