Tape unit isolation procedures
This topic contains the procedures necessary to isolate a failure
in a tape device.
In these procedures, the term tape unit may be any one of the following:
- An internal tape drive, including its electronic parts and status indicators
- An internal tape drive, including its tray, power regulator, and AMDs
- An external tape drive, including its power supply, power switch, power
regulator, and AMDs
You should interpret the term tape unit to mean the tape drive you
are working on. However, these procedures use the terms tape drive and enclosure to
indicate a more specific meaning.
Read and observe all safety procedures before servicing the system and
while performing the procedures in this topic. Unless instructed otherwise,
always power off the system or expansion unit where the FRU is located (see Powering on and powering off) before
removing, exchanging, or installing a field-replaceable unit (FRU).
DANGER
When working on or around the system, observe
the following precautions:
Electrical voltage and current from power, telephone,
and communication cables are hazardous. To avoid a shock hazard:
- Connect power to this unit only with the IBM provided
power cord. Do not use the IBM provided power cord
for any other product.
- Do not open or service any power supply assembly.
- Do not connect or disconnect any cables or perform installation, maintenance,
or reconfiguration of this product during an electrical storm.
- The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
- Connect all power cords to a properly wired and grounded electrical outlet.
Ensure that the outlet supplies proper voltage and phase rotation according
to the system rating plate.
- Connect any equipment that will be attached to this product to properly
wired outlets.
- When possible, use one hand only to connect or disconnect signal cables.
- Never turn on any equipment when there is evidence of fire, water, or
structural damage.
- Disconnect the attached power cords, telecommunications systems, networks,
and modems before you open the device covers, unless instructed otherwise
in the installation and configuration procedures.
- Connect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached devices.
To
Disconnect:
- Turn off everything (unless instructed otherwise).
- Remove the power cords from the outlets.
- Remove the signal cables from the connectors.
- Remove all cables from the devices
To Connect:
- Turn off everything (unless instructed otherwise).
- Attach all cables to the devices.
- Attach the signal cables to the connectors.
- Attach the power cords to the outlets.
- Turn on the devices.
(D005)
- Related tasks
- TUPIP02
Use this procedure to perform the 8mm tape drive read self-test and hardware self-test.
- TUPIP03
You were directed here because you may need to exchange a failing part.
- TUPIP04
Use this procedure to reset an IOP and its attached tape units. Read the (overview) before continuing with this procedure.
- TUPIP06
Use this procedure to isolate a Device Not Found message during installation from an alternate device.
- Tape unit self-test procedure
This procedure is designed to allow you to quickly perform a complete set of diagnostic tests on a 6384 or 6387 tape unit.
- Related reference
- Tape device ready conditions
All the conditions that are listed for the device, must be correct for the device to be ready.