Performance Verification; Error Recovery; 6-4.1 Ozone:xxxxyyyy <Text; 6-4.2 Nvram Initialization Required - Fujitsu m2488 User Manual

M2488 USER'S GUIDE
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PERFORMANCE VERIFICATION

The M2488 performs a selftest upon power on. During the selftest, SELFTEST will be displayed.
Upon successful completion of the selftest, the tape drive will return to normal operation with an . If
a malfunction occurs, an error code is displayed. Refer to the error code description.
6-4

ERROR RECOVERY

When specific error types are detected by the tape subsystem, messages are displayed on the operator
panel display. This section describes the various error types that may be displayed and the appropriate
operator and system action required when the error is displayed. Detailed information describing the
error codes may be found in the M2488 PRODUCT GUIDE, Appendix F.
6-4.1 OZONE:xxxxyyyy <text>
Ozone messages signal the operator that a microcode self-destruct has just occurred. The microcode
controlling the tape unit operation has detected a condition that should "never" occur or a condition
that may compromise data integrity. The tape unit has performed an internal reset and returns to a
known state. All buffered data is discarded and tape motion is halted. Power On and Not Ready to
Ready Unit Attention check conditions are returned to the SCSI host.
Ozone messages may be caused by the following:
• Incorrect and complicated SCSI operation/sequences by
1) Host adaptor under abnormal conditions
2) incorrect conditions of SCSI termination or cables.
• Abnormal system configuration such as a duplicated SCSI ID Setting, etc.
• During an error recovery operation for excessively damaged tape media.
• Broken hardware.
xxxxyyyy specify a unique error condition that the microcode has detected. <text> gives a short
description of the condition that caused the Ozone. These error codes and text descriptions hold little
information for anyone except the firmware developers.
When an Ozone message is displayed, the current job at the host computer should be aborted as data
integrity is compromised. Data being written to tape is no longer valid. Read data on tape is not
affected on the media.
When an Ozone message is observed, the check code and text message should be recorded as well as
the current operating conditions and all data forwarded to your maintenance provider for problem
resolution. If possible a Read Buffer CDB specifying the entire 2MB data buffer as a data length and
a buffer start address of zero should be issued from the host computer. This data should be made
available to the maintenance provider.
A table of ozone codes is not provided in this document as they are of little use to the user of the
product and are generated for the use of firmware developers only.
6-4.2 NVRAM Initialization Required
This message is displayed after power on if the non-volatile RAM that contains configuration and
setting information is not initialized, i.e.; CRC error when reading the configuration file. It is possible
that the NVRAM was previously initialized but has since failed. When this message is displayed the
tape unit will not respond to SCSI selection until the configuration is performed via the operator
panel. See the User's Guide, 4-2 SETTING MENU.
6-4.3 CHK XX
CHK xx errors signal drive or ACL/FACL errors when displayed on the operator panel. xx may be
any hexadecimal value from 00 to FF. When CHK XX is displayed, pressing the TEST key will cause
April 1997 CG00000-011403 REV. A
MAINTENANCE AND SERVICING
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