HP StoreEver TapeAssure Software - Manual (Page 57)

Usage
This section shows usage data for the drive since it was new, as well as the amount of data
transferred over the current and previous four tapes.
The Tape pulled item is expressed in full volume equivalents as that is closest to a customer model.
HP media documentation also uses this unit.
History
This section displays drive logs that show what the drive has been doing. The event log shows
high-level information on commands received, internal processing, and any errors returned to the
host (including tape alert information). The event log also includes history from Device Analysis
and Drive Assessment tests. The times shown are relative to the last power on.
LTO media
This section displays information on the currently loaded tape (header displays loaded tape), or
the tape that was loaded last (header displays ejected tape). If you are using genuine HP media,
more information is displayed in this section than would be with non-HP media.
This section has several sections and sub-sections:
•
The Identity section shows the identity of the media. Note that the Barcode item is not used
by all products.
•
The Health section is split into three sections:
The Data on tape section shows margin measurements for the data on the tape. Data on
tape is written in wraps where each wrap is a pass up or down the tape. Each generation ◦
of LTO has a different number of wraps. Each wrap has a measure of margin revealing
any bad spots on the tape. The summary line (top line of the section) highlights the worst
margin found and should be used for a measure of minimum quality of the whole tape.
The last used wrap usually displays partially written. Only fully written wraps can be
measured for margin.
To the right of the margin indicator for each wrap is a text-based bar chart that graphically
shows the margin rating. The zero in the middle represents 0% margin, and the carat (^)
represents the actual margin of the wrap. This is helpful to visualize margin across the
tape if a bad area covers more than one wrap.
◦ The Drive measurements section shows data from the error rate counters of the drives the
cartridge was used in. The summary line shows the worst margin found in the available
history. If there is a margin warning for one drive but good margin for the other drives,
then that suggests a suspect drive. Try cleaning the drive and run the Drive Assessment
test to check it. If there is a margin warning for all drives, then the cartridge itself is suspect.
Cross check this information with the Drive History section of the report.
◦ The Write/read life and Load/unload life items show cartridge life estimates based on
usage and published expected life figures with HP drives. Because HP drives are tuned
to work with genuine HP media, HP media can be expected to have a longer usage life.
•
The Configuration section shows whether the cartridge is write protected and WORM enabled.
Note that WORM is only supported with LTO3 and later drives.
•
The Environment section shows data for the current and previous drive environment. Watch
for warnings even in previous drives. This information can be useful to track down system hot
spots or cooling issues.
•
The Performance section shows performance data for the cartridge in the current drive, as
well as the previous two drives. Performance figures from previous drives are estimated from
the amount of data transferred and the time spent pulling tape. If less than 60 seconds of tape
Using a report or support ticket 57