HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS 3.X Document Addendum (AA-RW - Page 165

Table 13: Switch Fabric Settings, waits for the next error condition.

Page 165 highlights

Fabric OS reference guide Table 13: Switch Fabric Settings Domain BB Credit R_A_TOV Field Type Number Number Number E_D_TOV WAN_TOV MAX_HOPS Data Field Size Sequence-Level Switching Disable Device Probing Suppress Class F Traffic SYNC IO Mode VC Encoded Address Mode Disable Translative Mode Switch PID Format Per-Frame Route Priority Long-Distance Fabric Number Number Number Number Boolean Boolean Boolean Boolean Boolean Boolean Number Boolean Boolean Default 1 16 10000 2000 0 7 2112 0 0 0 0 0 0 1 0 0 Range Varies 1 to 27 E_D_TOV * 2 to 120000 1000 to R_A_TOV / 2 0 to R_A_TOV / 4 7 to 19 256 to 2112 0 or 1 0 or 1 0 or 1 0 or 1 0 or 1 0 or 1 0 to 2 0 or 1 0 or 1 Domain The domain number uniquely identifies the switch in a fabric. Normally, this value is automatically assigned by the fabric. The range of allowed values varies depending on the switch model and other system settings (see "VC Encoded Address Mode" on page 166). BB Credit The buffer-to-buffer (BB) credit represents the number of buffers available to attached devices for frame receipt. R_A_TOV The resource allocation timeout value (R_A_TOV) is displayed in milliseconds. This variable works with the E_D_TOV variable to determine the switch actions when presented with an error condition. Allocated circuit resources with detected errors are not released until the time value has expired. If the condition is resolved before the timeout, the internal timeout clock resets and waits for the next error condition. E_D_TOV The error detect timeout value (E_D_TOV) is displayed in milliseconds. This timer is used to flag a potential error condition when an expected response is not received (an acknowledgment or reply in response to packet receipt, for example) within the set time limit. If the time for an expected response exceeds the set value, an error condition is met. Fabric OS 3.x Document Addendum 165

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Fabric OS reference guide
165
Fabric OS 3.x Document Addendum
Domain
The domain number uniquely identifies the switch in a fabric. Normally, this value is
automatically assigned by the fabric. The range of allowed values varies depending on the
switch model and other system settings (see “
VC Encoded Address Mode
” on page 166).
BB Credit
The buffer-to-buffer (BB) credit represents the number of buffers available to attached devices
for frame receipt.
R_A_TOV
The resource allocation timeout value (R_A_TOV) is displayed in milliseconds. This variable
works with the E_D_TOV variable to determine the switch actions when presented with an
error condition.
Allocated circuit resources with detected errors are not released until the time value has
expired. If the condition is resolved before the timeout, the internal timeout clock resets and
waits for the next error condition.
E_D_TOV
The error detect timeout value (E_D_TOV) is displayed in milliseconds. This timer is used to
flag a potential error condition when an expected response is not received (an
acknowledgment or reply in response to packet receipt, for example) within the set time limit.
If the time for an expected response exceeds the set value, an error condition is met.
Table 13:
Switch Fabric Settings
Field
Type
Default
Range
Domain
Number
1
Varies
BB Credit
Number
16
1 to 27
R_A_TOV
Number
10000
E_D_TOV * 2 to
120000
E_D_TOV
Number
2000
1000 to R_A_TOV / 2
WAN_TOV
Number
0
0 to R_A_TOV / 4
MAX_HOPS
Number
7
7 to 19
Data Field Size
Number
2112
256 to 2112
Sequence-Level Switching
Boolean
0
0 or 1
Disable Device Probing
Boolean
0
0 or 1
Suppress Class F Traffic
Boolean
0
0 or 1
SYNC IO Mode
Boolean
0
0 or 1
VC Encoded Address Mode
Boolean
0
0 or 1
Disable Translative Mode
Boolean
0
0 or 1
Switch PID Format
Number
1
0 to 2
Per-Frame Route Priority
Boolean
0
0 or 1
Long-Distance Fabric
Boolean
0
0 or 1