IBM TotalStorage L10, Справочное руководство CLI

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2006 Model L10 Storage Switch
24
To quit viewing the settings:
Press C
TRL
-X.
Displaying Smart Settings (root/config/port/types)
This command displays the available Smart Settings (port types). These default Smart
Settings were defined by Fibre Channel storage experts to ensure the switch is optimally
configured for performance and stability.
To view the Smart Settings:
From the Port Configuration menu (root/config/port), type
types
and press E
NTER
.
A list of the default Smart Settings appears.
CRC Err Cyclic Redundancy Check (CRC) errors are detected and counted
for each individual port. When this policy is enabled, a port is
bypassed when its CRC count exceeds the threshold setting. The
threshold setting is based on the number of CRC errors identified in
10 seconds.
User intervention is required to return the port into the zone.
Recovery methods include replacing the defective component,
cycling power to the device on the port, removing and reinserting
the bypassed port, or cycling power to the switch.
Note: The threshold can be adjusted.
Clk Delta The switch determines the relative frequency of the signal being
received by a port to the internal switch clock. The result of this test
allows the determination of how far apart in frequency the switch’s
clock is in relation to the clock of the received signal – the clock
delta. If the clock delta exceeds a set threshold, the switch is
notified and the port may be bypassed if necessary. Typically, clock
drift is slow enough to allow the removal and replacement of a
defective part before the defective part begins to affect system
performance.
Table 16. Smart Settings
Number Port Type
1 Initiator or Target
2 Initiator with Stealth
3 Target with Stealth
4 Fabric Connection
5 Tree Cascade
6 String Cascade--Trunk 1
7 String Cascade--Trunk 2
8 String Cascade--Trunk 3
9 String Cascade--Trunk 4
10 IBM Smart Setting
Table 15. Port information (continued)
Field Description