Hp Insight Management Agents User Manual download pdf (Page 100)

• Failure Indicator—Use this utility to determine the cause of failure for a failed drive. If the drive

has failed and this counter is non-zero, replace the drive. If the drive condition is OK and the

failure indicator is not zero, the drive might have an intermittent problem and you might have

to replace it. There is no other corrective action for this error.

• Self-Test Errors—Displays the number of times that a physical drive failed its self-test. The

physical drive does a self-test each time the system is turned on. The number of self-test errors

is counted from the time shown in the Service Hours item on the SCSI Physical Drive window.

If the self-test error count is not zero and the drive has failed, replace the drive. If this count

is non-zero, but the drive has not failed, it could signal an intermittent problem with the drive.

If the number of errors increases over time, replace the drive.

Drive statistics

Select a SCSI physical drive from the SCSI controller submenu to display statistics about a specific

SCSI physical drive. You can use the run-time statistics to monitor the health of a specific drive.

The following information displays:

• Sectors Read—Displays the total number of sectors read from the physical disk drive since the

time listed in the Service Hours item in the SCSI Physical Drive section.

• Sectors Written—Displays the total number of sectors written to the physical disk drive since

the time listed in the Service Hours item in the SCSI Physical Drive section.

NOTE: If sectors read and written are always zero or N/A on Microsoft Windows 2000

you must install Service Pack 2 or higher. You also must enable the logical and physical disk

performance counters. Run DiskPerf.exe -Y in a command window and then reboot the

system.

• Hard Read Errors—Displays the number of read errors that could not be recovered by a

physical drive’s ECC algorithm, retries, or any other recovery mechanism. These errors are

counted over the time listed in the Service Hours item in the SCSI Physical Drive section.

Over time, a drive might produce hard read errors. These errors are usually caused by bad

media sections on the drive.

• Hard Write Errors—Displays the number of write errors that could not be recovered by physical

drive retries. These errors are counted over the time listed in the Service Hours item in the SCSI

Physical Drive section. Over time, a drive might produce these errors. These errors are usually

caused by bad media sections on the drive.

When a hard write error occurs, the physical drive remaps the bad sector. If the physical drive

attempt to remap the sector is unsuccessful, NetWare Hot Fix Redirection logic attempts to

remap the sector. Windows NT hot fixes bad sectors on HPFS and NTFS file systems.

• Recovered Read Errors—Displays the number of read errors corrected through physical drive

retries or other drive recovery mechanisms. Over time, all drives produce these errors. The

number of errors is counted over the time shown in the Service Hours item in the SCSI Physical

Drive section.

Having a large number of retry corrected errors does not necessarily indicate that the drive

is failing. However, as a precaution, you can replace a drive that has an abnormally high

amount of errors when compared to similar drives. If the number of errors increases rapidly,

you might need to replace the drive.

• Recovered Write Errors—Displays the number of write errors corrected through physical drive

retries or other drive recovery mechanisms. Over time, all drives produce these errors. The

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Hp Insight Management Agents User Manual Page 100

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