HP LTO Ultrium 4 drives technical reference manual, volume 2: software integration 25
HP restricted
Barcode support
Ultrium barcode support is required for WORM media so that the application and tape library can
distinguish WORM media from normal RW media or cleaning cartridges.
HP recommends the use of the following barcode formats for Ultrium media:
Responding to Cartridge Memory data
NOTE: Software should use the TapeAlert log in preference to the Cartridge Memory to detect
conditions which require the user or host to take preventative action. See “Monitoring the condition
of the drive and media” on page 78.
These guidelines indicate how host applications should make use of the data contained in the
Cartridge Memory during normal operation (that is, when tapes are not permanently
write-protected, not constantly re-formatted).
The console messages triggered by these criteria should clearly indicate a course of action to the
end-user, such as the following:
1. Clean the tape heads using a cleaning cartridge.
2. Insert a new tape cartridge.
3. Archive the data.
Load count
NOTE: This only applies when non-write-protected cartridges are used.
The load count is the number of times the cartridge has been loaded into a drive and accessed.
Hewlett-Packard recommends a maximum use for a tape of 20,000 passes over any particular area
of the tape. This conservative estimate is also influenced by the quality of the application and the
driver software in being able to maintain streaming, thereby preventing repositioning over the same
area of tape, without data being transferred.
123456L2 LTO Ultrium 2
123456L3 LTO Ultrium 3
123456L4 LTO Ultrium 4
::
123456LT LTO Ultrium 3 – WORM
123456LU LTO Ultrium 4 – WORM
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