subscribe iconSubscribe to this information
POWER7 information

Maintenance mode (FC 5638)

Learn about using maintenance mode functions on the 5638 tape drive.

Performing operations using the front panel

Perform maintenance operations by pushing the eject button while observing the status LED and the single-character display.

Entering maintenance mode

The drive must be in maintenance mode to run drive diagnostics or maintenance functions. To place the unit in maintenance mode:
  1. Make sure that no cartridge is in the drive.
  2. Press and hold the Unload Button for 6 seconds. A 0 appears in the Single-character Display (SCD), and the Fault Light turns amber.
Note: If a cartridge is in the tape drive, it will eject the first time that you press the Unload Button and the drive will not be placed in maintenance mode. To continue placing the drive in maintenance mode, perform the preceding step. While in Maintenance Mode, the drive will not accept a cartridge unless the drive requests it. The SCD will display a flashing C to indicate a cartridge needs to be inserted.

Maintenance functions cannot be performed concurrently with read or write operations. While in maintenance mode, the drive does not receive commands from the server.

Scrolling through maintenance options

With the drive in maintenance mode, press the eject push button at a rate of once per second. The single-character display code increments by one each time you press the eject push button.
Note: Do not press the eject push button more frequently than once per second or the selected maintenance function will occur instead of the desired scrolling operation.
After the last maintenance function is reached, the display code wraps to 0. Unassigned digits (B, D, and G) are not displayed when the options are incremented.

The following table lists the maintenance functions.

Table 1. Maintenance functions
Maintenance functions Display code
Normal mode None
Maintenance mode 0
Run drive diagnostics 1
Update drive firmware from FMR tape 2
Create FMR tape 3
Force a drive dump (same as pressing the eject button for 10 or more seconds, except it does not cause a reset operation) 4
Copy drive dump to tape at the beginning of tape 5
Copy drive dump to tape 5-1
Copy drive dump to flash memory 5-8
Clear flash dump 5-3
No function 5 -0
Run host interface wrap test 6
Test the primary SAS port 6-1
Test the secondary SAS port 6-8
Test both primary and secondary SAS ports at the same time (requires a wrap plug in both ports) 6-3
Exit 6-0
Run RS-422 wrap test 7
Unmake FMR tape 8
Display error code log 9
Clear error code log A
Insert cartridge into tape drive C
Test cartridge and media E
Write performance test F
Test head H
Fast read/write test J
Load/unload test L
Enable post-error reporting P
Disable post-error reporting U

Running a maintenance function

To run the maintenance function indicated by the character on the single-character display, press and hold the eject button for 2 seconds. The single digit flashes the selected maintenance function code during the running of the operation. If the drive runs the function successfully, the single-character display indicates 0. If the function fails, the status LED indicates continuous yellow and the single-character display indicates the reason for the error by displaying an error code. For a meaning of status lights and single-character display, see Table 2.

Exiting maintenance mode

The drive must be in maintenance mode to run drive diagnostics or maintenance functions. To exit maintenance mode:
  1. Press and hold the Unload Button for 3 or more seconds then release the button to take the drive out of maintenance mode. If no error is detected, 0 temporarily appears in the SCD, then goes blank. The drive then exits maintenance mode and the Status Light will return to Green.
  2. If an error is detected, the SCD shows an error code but still exits maintenance mode. To clear the error, turn the power off, then on again.
Note: The drive also exits maintenance mode automatically after it completes a maintenance function or after 10 minutes if no action has occurred.

Running a dump operation when not in maintenance mode

To perform a drive dump operation, press and hold the eject button for 10 or more seconds. The microcode goes to its initialized state after a dump operation.
Note: Data from a dump operation is for use by trained personnel for problem determination.


Send feedback Rate this page

Last updated: Thu, July 10, 2014