Reference Guide

Chapter 4 SCSI Commands
LOG SENSE Command (4Dh)
DLT-S4 Interface Reference Guide 83
TapeAlert Log Page (2Eh) 4 This page returns results of the tape drive’s ongoing self-diagnosis, so
that the drive’s behavior can be monitored and high reliability assured.
The host typically reads the TapeAlert page from the drive at the
beginning of each
READ or WRITE activity, after any fatal errors occur
during a
READ or WRITE, at the end of any data cartridge when the READ
or
WRITE activity continues onto another data cartridge, and at the end of
each
READ or WRITE activity. The drive sets or clears the flags when the
failure or corrective action occurs.
SAS Address Indicates the SAS Address of the drive.
Attached SAS Address Reflects the SAS Address reported in the Identify Address frame received
by the drive.
Attached Phy Identifier Reflects the Phy Identifier reported in the Identify Address frame
received by the drive.
Invalid Dword Count Indicates the number of invalid dwords that have been received by the
phy, not including those received during reset sequences.
Running Disparity Error
Count
Indicates the number of dwords containing running disparity errors that
have been received by the phy, not including those received during reset
sequences.
Loss of Dword
Synchronization
Indicates the number of times the phy has lost dword synchronization
and restarted the reset sequence.
Phy Reset Problem Indicates the number of times the phy reset sequence has failed.
Field Descriptor