HP StoreEver TapeAssure Software - Manual (Page 70)

Table 15 Information available from the LTO Tape Properties window Last Used Drive tab
(continued)
Description Item
Usually set by the backup application. If enabled, the drive will perform
hardware data compression. Refer to the backup application to configure data
compression for backups. Data Compression
Usually set by the backup application. If prevented then the tape cannot be
removed from the drive. Normally, media removal is enabled after the backup Media Removal (application
controller)
is complete but if the backup aborts it is possible that media removal will still
be prevented. Refer to HP support documentation for resolution.
Read/Write health (last loaded tape)
A measure of the amount of tape used to write high quality data to the last
loaded tape with the amount of data written to the tape since it was last loaded. Write Health
Even if the warning is reported, the data will still have been written at high
quality (unless the drive reported an error) but more tape was used than
recommended by HP. A warning will normally trigger an alert. If appropriate,
maintenance recommendations are made, such as to clean the drive and/or
replace the tape. HP recommends the use of HP media for maximum confidence.
A measure of the ease with which data was read back from the most recently
loaded tape with the amount of data read from the tape since it was last loaded. Read Health
Even if the warning is given, the data will have been read back correctly (unless
the drive reported an error) but more error correction was required than
recommended. Note that a warning will normally trigger an alert. If
appropriate, maintenance recommendations are made such as to clean the
drive and/or replace the tape. HP recommends the use of HP media for
maximum confidence.
Drive Life
An estimate of the percentage of remaining head life based on the amount of
tape passed over the head compared with worst case life expectancy testing
in a clean environment. HP recommends HP media for increased head life. Head Life
If a life warning is shown, the drive should be replaced at the next maintenance
period. HP recommends HP media for increased head life.
An estimate of the percentage of remaining reposition life based on the number
of changes in direction of the tape over the life of the drive compared with the Reposition Life
worst case life expectancy in a clean environment. HP recommends HP media
for increased reposition life.
If a life warning is shown, the drive should be replaced at the next maintenance
period. HP recommends HP media for increased reposition life.
An estimate of the percentage of remaining drive load/unload life based on
the number of load/unload cycles over the life of the drive compared with Load/Unload Life
worst case life expectancy testing in a clean environment. HP recommends HP
media for increased load/unload life.
If a life warning is shown, the drive should be replaced at the next maintenance
period. HP recommends HP media for increased load/unload life.
Usage Statistics
Total power on time of the drive since it was manufactured. Power On Time
Total tape pulled through the drive expressed in terms of the equivalent number
of full volume writes or reads. Tape Pulled
Total number of tape loads for the drive since it was new. Load/Unload Cycles
A comparison of the time the tape was in the drive with the time since the time
it was loaded and the following tape load expressed as a percentage. For Percent Tape Loaded
example, if the time between the two tape loads was 4 hours and this tape
70 Using TapeAssure in the L&TT WebGUI