SCSI Commands: 21BLOG SENSE
Page
66
3.9.13
TapeAlert Log Page (2Eh)
The TapeAlert Log Page provides information about errors and the status of the
drive and media.
Page Code
Page Length
2Eh 140h
All parameters are one byte long. Each parameter is either zero to indicate the
corresponding condition has not occurred or one to indicate that the corresponding
condition has occurred. The log page is used in conjunction with Information
Exceptions Mode Page (1Ch) that controls the action taken by the drive when a flag
is set and sets various other control mechanisms of the TapeAlert system. A flag is
set whenever the condition for setting the flag exists. There are three types of flags,
Informational, Warning, and Critical. The type of flag depends upon the severity of
the condition that sets the flag. Flags are cleared on the following conditions:
At drive power on
When the TapeAlert Log page is read
When specified corrective action has been taken (such as using a cleaning
cartridge)
On a SCSI bus reset or bus device reset message (Parallel SCSI interface) or
Target Reset or Logical Unit Reset task management request or Reset LIP (Fibre
Channel interface)
Additional information regarding the TapeAlert system is found in the SCSI-3 Stream
Commands (SSC) Standard. The following is the list of flags (parameters) supported
by the drive.
3.9.13.1
Supported TapeAlert Flags
Num
b
er
Flag
Type
Required Host Message
Cause
3 Hard
Error
W
The operation has stopped because an
error has occurred while reading or writing
data that the drive cannot correct.
The drive had a hard read
or write error.
4
Media
C
Your data is at risk:
1. Copy any data you require from this
tape.
2. Do not use this tape again.
3. Restart the operation with a different
tape.
Media can no longer be
written/read, or performance
is severely degraded.
5 Read
Failure C
The tape is damaged or the drive is faulty.
Call the tape drive supplier help line.
The drive can no longer
read data from the tape.
6 Write
Failure C
The tape is from a faulty batch or the tape
drive is faulty:
1. Use a good tape to test the drive.
2. If the problem persists, call the tape
drive supplier help line.
The drive can no longer
write data to the tape.
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