IBM iSeries 800 Hardware Problem Analysis And Isolation

Table 1. Power off and power on positions of tape unit power switches
Operation Power switch type
Toggle
push
in/out
Power off Down Out
Power on Up In
8. Set the tape unit Power switch to the Power On position (see Table 1. Power off and power on
positions of tape unit power switches (See page 226) in this topic). The Power light should go on and
remain on. If a power problem is present, one of the following power failure conditions may occur:
v The Power light flashes, then remains off.
v The Power light does not go on.
v Another indication of a power problem occurs.
Does one of the above power failure conditions occur?
v No: Continue with the next step.
v Yes: Perform the following:
a. Go to the service information for the specific tape device to correct the power problem.
b. When you have corrected the power problem, go to “TU-PIP3” on page 228.
This ends the procedure.
9.
The tape unit is powered on and runs its power-on self-test. Wait for the power-on self-test to
complete.
Does the power-on self-test complete successfully?
v No: Go to the service information for the specific tape device to correct the problem. Then go to
“TU-PIP3” on page 228.
This ends the procedure.
v Yes: Go to “TU-PIP3” on page 228.
This ends the procedure.
TU-PIP2:
For use by authorized service providers.
Use this procedure to perform the 8mm tape drive read self-test and hardware self-test. The write test is
performed in “TU-PIP3” on page 228. Read the “Tape unit PIPs” on page 224 before continuing with this
procedure.
1. If the system has logical partitions, perform this procedure from the logical partition that reported the
problem. To determine if the system has logical partitions, go to Determine if the system has logical
partitions before continuing with this procedure.
2. Press the Unload switch on the front of the 8mm tape drive. Is a data cartridge present?
v No: Continue with the next step.
v Yes: Attempt to remove the data cartridge. Can you remove the data cartridge?
– Yes: Continue with the next step.
– No: The tape drive is the failing part. Go to Tape cartridge - Manual removal. After removing the
data cartridge, exchange the tape drive (see Removable media in Remove and replace
procedures).
This
ends the procedure.
3.
Clean the tape drive by using the cleaning cartridge (part 16G8467). If the tape drive ejects the
cleaning cartridge with the Disturbance light on, a new cleaning cartridge is needed. The tape drive
unloads automatically when cleaning is complete. Cleaning takes up to 5 minutes.
Is the Disturbance light on continuously?
v No: Continue with the next step.
226 iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and
Isolation

IBM iSeries 800 Specifications

General

Brand	IBM
Model	iSeries 800
Category	Server
Language	English