Q-Logic 8100 SERIES Set Device Command Timeout Utility, # ./ql-lun-state-online.sh -interactive

8–Configuring FCoE in a Linux Environment Using the QLogic Linux Utilities

Menu Interface

To open the menu interface, issue the following command:

#./ql-lun-state-online.sh –interactive

If no offline LUNs are found, the menu interface does not start, the utility informs you that no offline LUNs were found, and the utility closes.

If offline LUNs are found, the utility main menu appears, as shown in the example in Figure 8-21.

Welcome to QLogic LUN State Change Utility

============================================

MAIN MENU

1.HOST: 2 TGT: 0 LUN: 4

2.HOST: 3 TGT: 1 LUN: 4

3.MAKE ALL ONLINE

4.QUIT

Please select any one option:

Figure 8-21. FC HBA Change LUN State Utility Main Menu

The Main menu option numbers will vary depending on the number of offline LUNs.

To change the state of one LUN:

1.Type the option number of a LUN, and the press ENTER.

2.Type the option number for OFFLINE to ONLINE/RUNNING, and then press

ENTER.

To change the state of all LUNS from offline to online, type the option for MAKE ALL ONLINE, and then press ENTER.

Set Device Command Timeout Utility

This utility is a combination command line/menu interface that controls the time that the target device has to execute a command. Increasing the timeout value can improve performance under heavy I/O conditions, when target devices need more time to execute commands, resulting in the Linux SCSI mid-layer driver aborting fewer tasks. However, increasing the timeout value also delays the detection of devices that have gone offline.

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