Black Box KV3000 User Manual Page 73

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SERVSWITCH™ AND SERVSWITCH ULTRA™
5.2.4 C
ONFIGURE
S
YSTEM
: E
XPANSION
U
NITS
(IBM
AND
M
ULTIPLATFORM
M
ODELS
O
NLY
)
This setting corresponds to the number of “submaster” (expansion) Serv units that
are connected to the main master IBM only or multiplatform ServSwitch Ultra.
(This option will appear and can be set for Sun only and Mac only models, but has
no purpose, because those models cannot currently be cascaded.) It helps to
determine which CPU number is associated with which physical connector. If you
aren’t cascading, this number should be set to zero. If one submaster is connected,
the value should be set to one, and so on.
To change this setting, press [Enter] while “Expansion units” is highlighted. An
“Input new value” box appears. Use the shared keyboard’s number keys to input a
new value from 0 to 16 and hit [Enter]. The input box disappears and the new
setting appears in the “Expansion units” field.
5.2.5 C
ONFIGURE
S
YSTEM
: E
XPANSION
W
IDTH
(IBM
AND
M
ULTIPLATFORM
M
ODELS
O
NLY
)
This setting correpsonds to the number of CPU ports that each submaster attached
to an IBM only or multiplatform ServSwitch Ultra master has. (This option will
appear and can be set for Sun only and Mac only models, but has no purpose,
because those models cannot currently be cascaded.) It helps to determine which
CPU number is associated with which physical connector. For example, if you are
using four-port submasters, then the expansion width should be set to four. (Do
not use submasters that have different numbers of CPU ports—both 4-port and
8-port submasters, for example—because this will cause switching and scanning
problems.)
To change this setting, press [Enter] while “Expansion width” is highlighted. An
“Input new value” box appears. Use the shared keyboard’s number keys to input a
new value from 1 to 16 and hit [Enter]. The input box disappears and the new
setting appears in the “Expansion width” field.
An example: Suppose your system consists of 32 computers that you’d like to
cluster in four groups of eight. You connect each group to an 8-port submaster,
and each of the four submasters to an 8-port master. You would then set maximum
computers to 32, expansion units to four, and expansion width to eight. If at some
point you connected four more computers to the four extra CPU ports on the
master, units and width would not change, but you would set maximum computers
to 36.
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