V
IXEL
I
N
S
PEED
™ SAN S
TORAGE
S
WITCH
M
ODEL
375
C
HAPTER
3 S
WITCH
M
ANAGEMENT
U
SER
’
S
G
UIDE
EMBEDDED
IN
THE
FUTURE
OF
STORAGE
30
Default Smart Settings
There are several default Smart Settings available on the switch. These default Smart Settings
were defined by Fibre Channel storage experts to ensure the switch is optimally configured for
performance and stability.
The default Smart Settings cannot be modified or deleted, but these settings can be used as
templates for creating custom Smart Settings.
Initiator or Target
This Smart Setting is the default setting for all switch ports from the factory. This setting offers no
change protection and all settings are set to their default values. Initiators and targets can be
connected to ports that are set to this Smart Setting.
This is the recommended Smart Setting for setups with targets and initiators connected to a
single switch.
Initiator with Stealth
This Smart Setting is used when connecting a host device to the port. When a port is set to this
Smart Setting, change notifications are not sent from the initiator to other devices, but change
notifications are received by the initiator.
This Smart Setting is appropriate for embedded storage controllers and external Host Bus
Adaptors (HBAs) or servers with installed HBAs.
Target with Stealth
This Smart Setting is used when connecting embedded storage devices, like JBODs, SBODs, tape
drives, or external RAID systems (JBODs, SBODs, or tape libraries). When a port is set to this
Smart Setting, change notifications are sent to other devices, but change notifications are not
received by the target.
Fabric Connection
This Smart Setting is used when connecting a port to a Fabric switch. Only one connection from
the Vixel InSpeed™ SAN Storage Switch Model 375 to a Fabric switch is valid.
Tree Cascade
This Smart Setting is used when connecting two or more switches together in a tree
configuration. Up to four tree cascades are supported between switches. See “Cascading
Switches” on page 44 for additional information.
String Cascade
This Smart Setting is used when connecting two or more switches together in a string
configuration. Up to four string cascades are supported between two switches. See “Cascading
Switches” on page 44 for additional information.
Before selecting a cascade option, consider the following:
•
Cascade ports of like number should be connected together. For example, connect port 1
of Switch A to port 1 of Switch B, connect port 2 of Switch B to port 2 of Switch C, and so
on.
•
Cascade port numbers must be lower than non-cascade port numbers (for example,
Initiator or Target ports). Therefore, select cascade types before selecting these non-
cascade types.
•
A maximum of three switches may be connected using string cascades.
Note:
Changing the Smart Setting of a port may affect the performance or behavior of the
system. Depending on the implementation, some Smart Settings are more appropriate
than others.
