IBM System Storage TS2900, Setup, Operator, And Service Manual

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Chapter 6. Troubleshooting
6-7
5. Using the host interface test tool, ITDT, run the Scan function (s) to verify that the
host application interface can detect the drive and the library. To further test the
interface communication path, run the Test Device function (t), if available, after
selecting the drive. This function will write/read data across the interface as well
as sending a command to the drive to run the internal performance Read/Write
test.
6. If the host tool, ITDT, cannot detect the drive or library, look for problems with
the host interface cabling, the HBA, the device driver or the backup application
software.
Isolating Web User Interface Problems
1. Verify that you entered the account name and password correctly. The account
name and password are case sensitive.
2. Verify that other library users are not entering commands from the Web User
Interface or Operator Panel at the same time you are issuing commands.
3. Ensure that library firmware is at the latest level (visit http://www.ibm.com/
storage/ ).
4. Ensure that the Ethernet cable is securely plugged in the rear of the library at the
Ethernet port.
5. Ensure that the correct IP, netmask, and gateway addresses are keyed into the
network parameters.
6. Ensure that the correct IP address is being used on the web browser.
7. If the Ethernet connection is a direct connection between the PC and the library, a
special “crossover” Ethernet cable is required.
Note: On newer PCs, either straight through or crossover Ethernet cables may
be used since the crossover requirement is provided internally.
8. Check the Ethernet cable carefully (or try another cable) and, if the cable is
connected to a network hub or switch, try a different port.
9. If the Web User Interface is still malfunctioning, refer to “Contacting IBM
Technical Support” on page 7-1.
Isolating Host Attachment Interface Problems
After successfully exercising “Isolating Drive Problems” on page 6-6, and more
specifically “Running Library Verify Diagnostics” on page 4-12 from the Operator
Panel (
Service
→
Library Verify ), the following procedures are suggested to help
isolate the failure to properly establish connectivity to the Host Bus Adapter (HBA).
1. If not already performed, run SAS Wrap Test from the Operator Panel. The test
will require that a proper Wrap Tool be installed at some point during the test
procedure.
a. If the wrap test fails, replace the library, and skip to Step 4.
b. b. Proceed to Step 2 if the wrap test passes.
2. Use the utility, ITDT, to evaluate connectivity from the HBA through the cabling
to the drive. ITDT does not require separate device drivers, thus the Operating
System has the ability to scan and find all the LTO devices that are attached.
a. If ITDT cannot successfully locate the LTO drive, suspect cabling or HBA
problems, and skip to Step 4.
b. If ITDT successfully located the LTO drive, proceed to Step 3. See “Using the
IBM TotalStorage Diagnostic Tool (ITDT)” on page 7-1 for a brief description
of ITDT and instructions on how to download the tool from the web.