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Basic self-test of LTO4 or LTO5 Drive and volume functionality.
This procedure is designed to allow you to quickly perform a complete set of diagnostic tests on your LTO-5 tape drive, without impacting server operation. This 4-minute test can also be used to verify good performance of individual LTO tape cartridges.
Prerequisites
In order to perform the test you need a blank LTO-5 (Ultrium 5) data cartridge. If an Ultrium-5 data cartridge is not available, an Ultrium-4 cartridge can be substituted.
Performing the test
Follow these steps to perform the test:
Attention: Use a blank data cartridge to perform the test. During the test, the tape will be overwritten with a test pattern and all data on the tape will be destroyed.
- Enter diagnostic mode by doing the following steps:
- Verify that a tape cartridge is not loaded in the drive. To unload a cartridge, press the eject button on the front of the drive.
- Press and hold the eject button for 7 seconds, until all LEDs become active, and then release the button.
The Ready LED will continue flashing, the Fault LED will remain on, and a"1"is displayed in the Single-character display (SCD). This combination indicates that the drive is waiting for a cartridge to be inserted.
- Start the self-test by inserting a blank, Ultrium 5 data cartridge into the drive.
If an Ultrium-5 data cartridge is not available, an Ultrium-4 cartridge can be substituted.
Notes:
- A cartridge must be loaded within 15 seconds or the drive will automatically revert back to normal operation. If necessary, return to step 1 to reenter diagnostic mode.
- The test takes about 4 minutes.
- Use a cartridge that is not write-protected. If a write-protected cartridge is inserted while the drive is in diagnostic mode, the cartridge will be ejected. See Table-1.
- Self-testing can only be performed using a write-compatible (either Ultrium-4 or Ultrium-3) cartridge type, and with a cartridge that is not damaged. See Table-1.
- If a cleaning cartridge is inserted while the drive is in diagnostic mode, it will be ejected.
While self-testing is in progress, the LEDs will remain active and the following test steps are performed:
- The hardware test runs for about one minute. During that time, a static test is performed on the electrical components of the drive, and proper operation of the cartridge load/unload mechanism is verified.
- The write/read test runs for about three minutes.
Interpreting the results
Table 1. Interpreting the results of the self-test
| Result | Description |
|---|
| Test passed |
When self-testing has completed successfully and no problems were detected, the cartridge is unloaded from the drive and all LEDs are off. Proper function of both the drive and tape cartridge have been verified. The drive is no longer in diagnostic mode, and has been returned to normal operation.
If the yellow Fault LED remains on and aCis displayed in the SCD, this combination indicates that self-testing has completed successfully but that cleaning is required. Clean the drive by inserting a cleaning cartridge.
|
| Drive failure |
When a drive problem is detected, the cartridge remains loaded inside the drive, the yellow Fault LED flashes, and a5is displayed in the SCD. Replace the tape drive. |
| Media failure |
When a media problem is detected, the cartridge remains loaded inside the drive, the yellow Fault LED remains on, and a7is displayed in the SCD. Repeat the self-test using another blank tape cartridge and discard the defective media. |
| Incorrect cartridge |
When an incorrect tape cartridge is used for the test, the cartridge is unloaded, the yellow Fault LED remains on, and aP,7, orJis displayed in the SCD. This can happen if the cartridge is:
- Write-protected (Pis displayed in the SCD.)
- Damaged (7is displayed in the SCD.)
- Not write-compatible with the drive (Jis displayed in the SCD.)
Press the eject button to end the self-test and return the drive to normal operating mode. Then return to step 1 and run the self-test again using a suitable cartridge. |
Returning to normal operation
When self-testing has completed successfully, the tape cartridge is unloaded. The drive is no longer in diagnostic mode and returns to normal operation.
When self-testing fails, the tape cartridge remains loaded inside the drive, and the drive remains in diagnostic mode. Press the eject button to unload tape cartridge and return drive to normal operation.
