User's Guide

Page 66 DDS-4 SCSI Interface Manual, Rev. B
The format of the Tape Alert Log Page is shown below:
Byte
Bits
7 6 5 4 3 2 1 0
0
1 0 0 0 0 0 0 0 0
2 MSB Page Length (140h)
3 LSB
5n-1 MSB – Parameter Code
5n LSB – Parameter Code
5n+1 DU(0) DS(1) TSD(0) ETC(0) TMC LBIN(0) LP(0)
5n+2 Parameter Length (1)
5n+3 Value of Flag (set when bit 0 = 1)
There are 64 Tape Alert flags for drives and autoloaders, (some are reserved). The
following table lists the flags supported by the drive:
No Flag Type Required Host Message Cause
1 Read Warning W The tape drive is having problems reading data. No data has been
lost, but there has been a reduction in the performance of the tape.
The drive is having
severe trouble reading
2 Write
Warning
W The tape drive is having problems writing data. No data has been
lost, but there has been a reduction in the capacity of the tape.
The drive is having
severe trouble writing
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 helpline.
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 helpline.
The drive can no longer
write data to the tape
7 Media Life W The tape cartridge has reached the end of its calculated useful life:
1. Copy any data you need to another tape
2. Discard the old tape.
The media has exceeded
its specified life
8 Not Data Grade W The tape cartridge is not data-grade. Any data you back up to the
tape is at risk.
Replace the cartridge with a data-grade tape.
The drive has not been
able to read the MRS
stripes
9 Write Protect C You are trying to write to a write-protected cartridge.
Remove the write-protection or use another tape.
Write command is
attempted to a write
protected tape
10 No Removal I You cannot eject the cartridge because the tape drive is in use.
Wait until the operation is complete before ejecting the cartridge.
Manual or s/w unload
attempted when prevent
media removal on
11 Cleaning Media I The tape in the drive is a cleaning cartridge.
If you want to back up or restore, insert a data-grade tape.
Cleaning tape
encountered during
backup or restore
12 Unsupported
Format
I You have tried to load a cartridge of a type that is not supported by
this drive.
Attempted loaded of
unsupported tape format,
e.g. DDS1 or DDS2 tapes
13 Recoverable
Snapped Tape
C The operation has failed because the tape in the drive has snapped:
1. Discard the old tape.
2. Restart the operation with a different tape.
Tape snapped/cut in the
drive where media can be
ejected