HP Insight Management Agents - Manual (Page 56)

• Placement—Indicates whether the tape drive is in an internal or external storage system.
The following values are valid:
— Internal—The tape drive is in an internal storage system.
— External—The tape drive is in an external storage system.
— Unknown—The tape drive is not in a storage system or the Storage Agents cannot
determine the drive placement.
—This symbol indicates that the drive is a hot-plug drive.
• 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.
• Tape Errors—Displays the total number of read and write errors encountered. This value
is maintained from the moment the Tape Hardware Interface driver was loaded.
Tape errors may occasionally occur. If this value rises dramatically, clean the device. If you
continue to have errors, you may have a problem. Some common causes of these errors
include radio frequency interference (RFI) on the bus cables, bad or missing terminating
resistors on the drives, or having more than one device with the same SCSI ID. Ensure the
bus cable is free of obstructions and that the devices on the bus are properly configured.
• Uncorrectable—Displays the total number of read and write errors which could not be
corrected. This value is maintained from the moment the Tape Hardware Interface driver
was loaded.
Uncorrectable errors may occasionally occur. If this value rises dramatically, clean the device.
If you continue to have errors, you may have a problem. Some common causes include radio
frequency interference (RFI) on the bus cables, bad or missing terminating resistors on the
drives, or having more than one device with the same SCSI ID. Ensure the bus cable is free
of obstructions and that the devices on the bus are properly configured.
• Rereads—Displays the number of times blocks that had to be reread from the device. This
value is maintained from the moment the Tape Hardware Interface driver was loaded.
Reread errors may occasionally occur. If this value rises dramatically, clean the device. If
you continue to have rereads, you may have a problem. Some common causes include radio
frequency interference (RFI) on the bus cables, bad or missing terminating resistors on the
drives or having more than one device with the same SCSI ID. Ensure the bus cable is free
of obstructions and that the devices on the bus are properly configured.
• Rewrites—Displays the number of times blocks that had to be rewritten to the device. This
value is maintained since the Tape Hardware Interface driver was loaded.
Rewrite errors may occasionally occur. If this value should rise dramatically, you may need
to clean the device. If you continue to have rewrites, you may have a problem. Some common
causes include radio frequency interference (RFI) on the bus cables, bad or missing
terminating resistors on the drives, or having more than one device with the same SCSI ID.
Ensure the bus cable is free of obstructions and that the devices on the bus are properly
configured.
• Total bytes—Displays the cumulative total number of bytes the tape drive has processed.
56 Agent information