Chapter 13 — Drive Troubleshooting Troubleshooting Drives
December 2019 User Guide—Spectra T200, T380, and T680 Libraries
416
Interpreting the Status LED Information
The Drive Details screen shows the state of the drive’s status LED. The LED
states are the same for all generations of drives. Refer to the tape drive
documentation about interpreting the LED (see LTO Ultrium Tape Drives
on page 20 or TS11xx Technology Drives on page 20).
Notes: The LED status information shown on the Drive Details screen
always indicates that the LED is off for LTO-4 Fibre Channel
drives running firmware version 8940 or later, all firmware
versions for LTO-5 and later generation Fibre Channel drives,
and all firmware versions for TS11xx technology drives. If you
need to determine the state of the LED, use the IBM Tape
Diagnostic Tool (ITDT). Download and install the software as
described in Use the IBM Tape Diagnostic Tool (ITDT) to
Retrieve a Drive Dump on page 409.
Make sure you install ITDT on a computer that is connected
to the same SAN as the drives in the library.
For TS11xx technology drives, use the MCD to determine the
status of the drive (see Interpreting the SCD and MCD Codes).
Contact Spectra Logic Technical Support if you need assistance (see
Contacting Spectra Logic on page 7).
Interpreting the SCD and MCD Codes
Overview The Drive Details screen displays the state of the single-
character display (SCD) on LTO drives (see LTO SCD Codes on page 417)
or the display message (MCD) on TS11xx technology drives (see TS11xx
Technology MCD Codes on page 427).
Permanent Errors If the drive detects a permanent error and displays an
SCD or MCD error code other than zero (0), it automatically performs a
drive dump. If you force a drive dump, the existing drive dump is
overwritten and data is lost. You might also lose the dump data if you turn
off the power to the drive. See Retrieving a Drive Trace or Drive Dump File
on page 407 for information about retrieving the trace data or dump from
the drive.
Notes: Some of the solutions listed in the following table include
testing the drive. See Using DLM to Test a Drive on page 432
for instructions.
In some cases, additional tests using ITDT are required.
Download and install the software as described in Use the
IBM Tape Diagnostic Tool (ITDT) to Retrieve a Drive Dump
on page 409. Refer to the ITDT documentation for
information about using this utility. Contact Spectra Logic
Technical Support if you need assistance (see Contacting
Spectra Logic on page 7).
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