HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Advanced Web Tools Administ - Page 43

Configuring virtual channel settings, Configuring arbitrated loop parameters

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Configuring virtual channel settings You can configure the parameters for eight virtual channels to enable fine-tuning for a specific application. You cannot modify the first two virtual channels, which are reserved for switch internal functions. CAUTION: The default virtual channel settings have already been optimized for switch performance. Changing the default values can improve switch performance but can also degrade performance. Do not change these settings without fully understanding the effects of the changes. VC Priority specifies the class of frame traffic given priority for a virtual channel. Configuring system services 1. Launch the Switch Admin module as described on page 36. 2. Disable the switch as described on page 39. 3. Click the Virtual Channel subtab. 4. Enter a value in the VC Priority field you want to change. Valid values for all fields are 2 or 3. 5. Click Apply. 6. Enable the switch as described on page 39. Configuring arbitrated loop parameters You can configure the following arbitrated loop parameters using the Configure tab and Arbitrated Loop subtab of the Switch Admin module: Send Fan Frames Always Send RSCN Do Not Allow AL_PA 0x00 Check this box to specify that fabric address notification (FAN) frames are sent to public loop devices to notify them of their node ID and address. Following the completion of loop initialization, a remote state change notification (RSCN) is issued when FL_Ports detect the presence of new devices or the absence of pre-existing devices. Check this box to issue an RSCN upon completion of loop initialization, regardless of the presence or absence of new or pre-existing devices. Check this box to disable 0x00 as an arbitrated loop physical address (AL_PA) value. Configuring arbitrated loop parameters 1. Launch the Switch Admin module as described on page 36. 2. Disable the switch as described in "Enabling and disabling a switch" on page 39. 3. Select the Configure tab. 4. Select the Arbitrated Loop subtab. 5. Select or clear the boxes to enable or disable the corresponding arbitrated loop parameters. 6. Click Apply. 7. Enable the switch as described in "Enabling and disabling a switch" on page 39. Configuring system services You can configure the following system services: rstatd rapid rusersd Disable RLS Probing Dynamically enables or disables a server that returns system operation information through remote procedures calls (RPC). Allows or disallows the API to communicate with the switch. Dynamically enables or disables a server that returns information about the user logged into the system through remote procedure calls (RPC). Enables or disables FCP read link status (RLS) information probing for F_Ports and FL_Ports. It is disabled by default. Fabric OS 5.x Advanced Web Tools administrator guide 43

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Fabric OS 5.x Advanced Web Tools administrator guide
43
Configuring virtual channel settings
You can configure the parameters for eight virtual channels to enable fine-tuning for a specific
application. You cannot modify the first two virtual channels, which are reserved for switch internal
functions.
CAUTION:
The default virtual channel settings have already been optimized for switch performance.
Changing the default values can improve switch performance but can also degrade performance. Do not
change these settings without fully understanding the effects of the changes.
VC Priority specifies the class of frame traffic given priority for a virtual channel.
Configuring system services
1.
Launch the Switch Admin module as described on
page 36
.
2.
Disable the switch as described on
page 39
.
3.
Click the
Virtual Channel
subtab.
4.
Enter a value in the
VC Priority
field you want to change. Valid values for all fields are 2 or 3.
5.
Click
Apply
.
6.
Enable the switch as described on
page 39
.
Configuring arbitrated loop parameters
You can configure the following arbitrated loop parameters using the Configure tab and Arbitrated Loop
subtab of the Switch Admin module:
Configuring arbitrated loop parameters
1.
Launch the Switch Admin module as described on
page 36
.
2.
Disable the switch as described in ”
Enabling and disabling a switch
” on page 39.
3.
Select the
Configure
tab.
4.
Select the
Arbitrated Loop
subtab.
5.
Select or clear the boxes to enable or disable the corresponding arbitrated loop parameters.
6.
Click
Apply
.
7.
Enable the switch as described in ”
Enabling and disabling a switch
” on page 39.
Configuring system services
You can configure the following system services:
Send Fan Frames
Check this box to specify that fabric address notification (FAN) frames are sent to
public loop devices to notify them of their node ID and address.
Always Send RSCN
Following the completion of loop initialization, a remote state change notification
(RSCN) is issued when FL_Ports detect the presence of new devices or the absence of
pre-existing devices. Check this box to issue an RSCN upon completion of loop
initialization, regardless of the presence or absence of new or pre-existing devices.
Do Not Allow
AL_PA 0x00
Check this box to disable 0x00 as an arbitrated loop physical address (AL_PA) value.
rstatd
Dynamically enables or disables a server that returns system operation information through
remote procedures calls (RPC).
rapid
Allows or disallows the API to communicate with the switch.
rusersd
Dynamically enables or disables a server that returns information about the user logged into the
system through remote procedure calls (RPC).
Disable RLS
Probing
Enables or disables FCP read link status (RLS) information probing for F_Ports and FL_Ports. It is
disabled by default.