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Cd storage system – HP Insight Management Agents User Manual

Page 85

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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

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.

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.

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.

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.

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.

Cleaning Tape Needs Replacement—Indicates the cleaning tape associated with the autoloader
is at the end of the tape. If the cleaning tape is at the end of the tape, a new cleaning tape
must be placed in 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.

Number of Cleanings Performed—Indicates the number of times that the tape drive has been
cleaned. If a tape drive is cleaned too much it can damage the tape heads.

NOTE:

A value of Not Supported indicates that the tape drive does not support this feature.

CD storage system

Select the CD Storage System entry in the SCSI controller submenu to display Library Information
and information for CD-ROM drives associated with the storage system.

Storage Agent

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