HP Insight Management Agents - Manual (Page 91)

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Library Drive—Indicates whether the tape drive is included in a tape library. The following
values are valid:
◦ Yes—The tape drive is included in a tape library.
◦ No—The tape drive is not included in a tape library.
◦ Unknown—The Storage Agents are unable to determine if the tape drive is included in
a tape library.
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Media Changer Information—Displays the autoloader media changer information. This only
displays when the tape device is an autoloader.
◦ Model—Displays a description of the SCSI tape autoloader media changer model as
returned by the SCSI inquiry command.
◦ Firmware Version—Displays the firmware revision level of the tape autoloader media
changer as returned by the SCSI inquiry command.
◦ Serial Number—Displays the serial number assigned to the tape autoloader media
changer. This value is based on thee serial number as returned by the SCSI inquiry
command.
◦ Magazine Size—Displays the magazine size of the SCSI tape autoloader media changer
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Tape Errors—Displays the number of read and write errors that have been encountered with
the currently loaded tape. Over time, a tape device might produce these errors. These errors
are usually caused by bad media sections on the drive. If this value rises dramatically, you
might need to clean the device.
NOTE: The number of tape errors is equal to or greater than the combined total for re-reads,
re-writes and uncorrectable errors.
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Re-reads—Displays the number of read errors corrected through tape drive retries. Over time,
all drives produce these errors. If you notice a rapid increase in the value for Recovered Read
Errors or Hard Read Errors, a problem might exist with the drive. The value increases every
time the physical drive detects and corrects another error. If this value rises dramatically, you
might need to clean the device.
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Re-writes—Displays the number of write errors corrected through tape drive retries or other
drive recovery mechanisms. Over time, all drives produce these errors.
Having a large number of retry corrected errors does not necessarily indicate that the drive
is failing. However, as a precaution, replace a drive that has an abnormally high amount of
errors when compared to similar drives. If this count increases rapidly, you might need to
clean or replace the drive.
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Uncorrectable—Displays the number of read errors that could not be recovered by a tape
drive’s ECC algorithm, retries, or any other recovery mechanism. Over time, a drive might
produce these errors. These errors are usually caused by bad media sections on the tape.
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Tape Drive Heads Need Cleaning—Indicates the tape heads on the drive must be cleaned.
If they must be cleaned, a cleaning tape must be placed in the drive or the autoloader.
NOTE: A value of Not Supported indicates that the tape drive does not support this feature.
You might need to upgrade your firmware to the latest revision.
As routine maintenance, the drive heads should be cleaned according to the recommended
schedule for your specific drive.
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