IBM 3592 Maintenance Information page 247

Complete the following steps to determine the port address (FCP ID) and port name (FCP Worldwide
Name). The example in the following text refers to the device rmt1. Its port address is 0x26 (with
leading 0s not shown) and the port name is "0x500507630240202a". If you do not know which
devices to test, ask the customer's system administrator.
2. To determine the "unique identifier," use the following information.
a. Enter the following information -
$ tapeutil -f /dev/rmt1 qrypath
b. This command displays on the console -
Querying SCSI paths...
Logical Device................. rmt1
SCSI Parent.................... fscsi0
FCP SCSI ID.................... 0x26
FCP Logical Unit............... 0x0
FCP World Wide Name............ 0x500507630240202a
Drive Port Number.............. 0
Path Enabled................... Yes
Alternate Path Configured...... No
3. Type tapeutil, and the following menu appears -
Note: Your tapeutil menus might vary from the examples, depending on the level of your
Atape.driver installed in your system. The following examples are using Atape.driver at 2.5.1.0.
General Commands:
1. Open a Device
2. Close a Device
3. Device Info
4. Tape Drive Service Aids
Medium Changer Commands:
12. Element Information
13. Position To Element
14. Element Inventory
15. Prevent Medium Removal
Tape Commands:
20. Query/Set Parameters
21. Load Tape
22. Rewind
23. Erase Gap
24. Forward Space Filemarks
25. Forward Space Records
26. Space to End of Data
27. Log Sense
28. Display Message
29. Synchronize Buffers
Enter Selection:
4. At the Enter Selection: prompt, select Open a Device, and press Enter.
5. At the Enter the device special file name: prompt, type /dev/rmt1 (or your actual device).
6. At the Select mode (1=Read/Write, 2=Read Only, 3=Write Only, 4=Append): prompt, type 1 to
receive the Opening device... prompt.
7. At the Hit any key to continue... prompt, press Enter.
General Commands:
1. Open a Device
2. Close a Device
5. Inquiry
6. Test Unit Ready
7. Reserve Device
8. Request Sense
16. Move Medium
17. Load/Unload Medium
18. Initialize Element Status
19. Allow Medium Removal
30. Read and Write Tests
31. Unload Tape
32. Erase
33. Write Filemarks
34. Backward Space Filemarks
35. Backward Space Records
36. Query/Set Tape Position
37. Library Sequence Number
38. Read or Write Files
39. Recover Buffer Data
5. Inquiry
6. Test Unit Ready
9. Log Sense Page
10. Mode Sense Page
11. Release Device
Q. Quit Program
9. Log Sense Page
10. Mode Sense Page
Procedures 227