HP 377707-002 - Manual (Page 84)

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3. Click the radio button next to the LUN whose properties you want to view, then click the
Properties button. The SRP LUN Properties window opens. Table 7-7 lists and describes the
elements in this window.
Configuring Fibre Channel LUN Properties
To configure FB LUN properties:
1. Expand the Fibre Channel icon in the Tree frame.
2. Click the Logical Units branch. A Logical Units table that includes all LUs in your configuration
file appears in the View frame.
3. Click the radio button next to the LUN whose properties you want to view, then click the
Properties button. The SRP LUN Properties window opens.
4. (Optional) Enter a description in the Description field.
5. (Optional) Enter an integer value in the Hi Mark field.
6. (Optional) Enter an integer value in the Max Retry field.
7. (Optional) Enter an integer value in the Min IO Timeout field.
8. (Optional) Click a radio button in the Dynamic Pathing field.
Table 7-7: SRP LUN Properties Window Elements
Element Description
Logical ID field Logical ID of the LUN.
Device Category field Provides the random radio button and sequential radio button to
identify disk devices and tape devices respectively.
Inquiry Data field SCSI inquiry data retrieved about the LU.
Physical Access field Ports on your Server Switch that can access the LUN.
Description field User-assigned description of the LUN.
Hi Mark field The maximum number of outstanding requests from the initiator to the
storage that the ITL can maintain.
Max Retry field Number of failed communication attempts that must occur before the
LUN identifies the initiator as inaccessible.
Min IO Timeout field Maximum amount of time that elapses before a SRP request times out.
Dynamic Pathing field Provides the following radio buttons:
•
Path Affinity—this feature locks a storage connection to a path
for the duration of data transfer to increase speed and efficiency.
• Gateway Port Load Balancing—this feature distributes traffic
evenly across both ports in an FC gateway card (when both of the
ports can access the same storage).
• Gateway Port Failover—this feature leaves one port on an FC
gateway dormant so it can adopt the traffic of the other port (when
both of the ports can access the same storage) if that port goes
down.
Apply button Applies the changes that you make in the window to the LUN.
Reset button Resets the fields in the window to match the properties of the LUN.
Close button Closes the window. If you close the window before you apply changes,
CM makes no changes to the LUN.
Help button Opens on-line help.