User's Guide

Scalar 24 Installation and Operation Guide 125
Drive Maintenance Test
Drive Maintenance allows you to perform several different drive diagnostic tests.
To better understand these tests, you need to understand the format of the tape. The tape is divided into
four data sections. Each data section contains 96 tracks (96*4=384 tracks, the number of tracks on a
generation one cartridge). On each edge of the tape (two servo bands), and between the databands (three
servo bands), there are pre-formatted servo bands (five in total). A wrap is defined as a trip from logical BOT
to logical EOT (a round trip would be two wraps).
Each test is described in more detail below.
Selection Description/Result
1 From the Tools menu, highlight and
press .
Runs self test.
2 A status screen displays the progress of
the test. You can press at any time to
cancel the test.
The self test begins.
3 When the test is complete, a completion
message is displayed. Press to
dismiss.
If the Self Test fails, there is probably
something obstructing motion of the picker.
Open the door and pull out the magazines to
verify that all the tapes are pushed into their
slots. Look for anything that appears to be
blocking the path of the picker. Retry the test.
If it still fails, contact technical support.
Note
The drive maintenance tests are only supported for libraries with LTO drives.
Note
Run time records the test time in minutes and seconds (m:ss).
Power on self test
(POST)
Runs self diagnostics. This test takes approximately one minute.
Fast Read/Write The drive reads and writes two wraps worth of data (a trip down and back) in
each of the four data sections. Ten data patterns are used in this test. No more
than 1.5% of the tape is used. This test takes approximately 25 minutes.