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Checking channel attachment with NTUTIL under Windows
The devices must be fully installed and the host device driver must be configured and available. See IBM
SCSI Tape Drive, Medium Changer, and Library Device Drivers: Installation and User's Guide for information
about installing and configuring the IBM tape drive.
Note:
1. The 3592 tape drive must be powered ON before the Windows device is powered ON.
If the 3592 tape drive power is not ON when Windows is powered ON, the Windows device does not
recognize the 3592. If the 3592 drive is powered ON after the Windows device is powered ON, the
Windows device still does not recognize the 3592 tape drive.
2. The sense procedure can be run with the menu-driven interface of the ntutil program. To start the ntutil
program in this format, enter the common commands, item 83 to Force the Log of Sense, and
item 84 Get Last Sense.
To check out the SCSI interface, run a Force Sense, followed by a Get Last Sense command:
1. Verify that the IBM tape subsystem is powered ON and is online.
2. Verify that the tape drive has a tape cartridge loaded.
3. Start ntutil and open the drive (see Steps 1-3 in "Starting NT UTILITY (ntutil) from Windows" on page
222), then return here.
4. Run the command 83 (Log Sense).
5. Read the sense information with the command 84 (Get Last Sense).
6. When the operation completed successfully, select 21 (close), then press Enter.
7. When the tests are complete, quit the Command Prompt window by clicking the X in the upper-right
corner of the screen.
8. Return to the procedure that sent you here.
Fibre Channel testing
Use this information to help you test and diagnose the Fibre Channel connection on EH7, EH8, 55F, and
60F drives.
Fibre wrap test
Attention: Notify the customer that all of the devices on the Fibre Channel must be varied offline
before the Wrap Test procedure can be run.
Since the channel is an active device, the preferred and safest method to work on a drive is to take all of
the Fibre Channel ports offline first.
To run the Fibre Channel ports wrap test, complete the following steps:
1. Complete "Preparing the tape drive for service" on page 183.
2. Unplug the Fibre Channel cable connector. This action might open the fibre loop connection.
3. Plug a fibre wrap tool into one or both of the fibre wrap ports.
Note: Do not run the wrap test with the Fibre Channel cables connected. This action can disturb the
Fibre Channel loop, causing performance or I/O problems on the fibre loop.
4. From the service panel, press Change Mode . Select CE Offline Mode > Verify Fix/Diag > Test
Fibre Wrap.
5. Select Both Ports, Port 0, or Port 1.
• If the wrap test fails, a FID message is displayed. Go to "FID entry point" on page 6 to isolate the
problem.
236 IBM 3592 TS1140, TS1150, TS1155, and TS1160 Tape Drives: Maintenance Information
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