HP Insight Management Agents - Manual (Page 54)

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Recovered Read Errors—Displays the number of read errors corrected through physical 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 may exist with the drive. Expect
more errors for this monitored item than for Hard Read Errors.
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Total Seeks—Displays the total number of seek operations during seek tests performed by the
physical drive since the drive was stamped. The drive was stamped when it left the factory.
During normal reads and writes to the drive, the drive implied seeks to the location where
data resides. These are not included in this count.
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Seek Errors—Displays the number of seek errors that a physical drive detects. A seek error is
a seek that failed. Over time, a drive usually produces these errors. If you notice a rapid
increase in the value shown for Seek Errors, this physical drive may be failing. Only an
unusually rapid increase in these errors indicates a problem.
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Sectors Written—Displays the total number of sectors written to the physical drive since the
drive was stamped. The drive was stamped when it left the factory.
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Hard Write Errors—Displays the number of write errors that could not be recovered by a
physical drive. Over time, a drive may produce these errors. If you notice an increase in the
value shown for Hard Write Errors or Recovered Write Errors, a problem may exist with the
drive. The counter value increases every time the physical drive detects another error. On
average, these errors should occur less frequently than read errors.
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Recovered Write Errors—Displays the number of write errors corrected through physical drive
retries or recovered by a physical drive on a monitored system. Over time, a drive may produce
these errors. If you notice an increase in the value shown for Recovered Write Errors or Hard
Write Errors, a problem may exist with the drive.
The Recovered Write Errors value increases every time the physical drive detects and corrects
an error. Only an unusually rapid increase in these errors indicates a problem. On average,
these errors should occur less frequently than read errors.
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Hot-Plug Count—Indicates the number of times this physical drive was removed via a hot-plug
event from a storage system since the drive was stamped. The drive was stamped when it left
the factory.
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DRQ Timeouts—Displays the number of times that a physical drive continued to request data
but did not get a command completion. This value increases every time a Data Request (DRQ)
timeout occurs for the physical drive.
A defective drive or cable may cause DRQ timeouts to occur. If you see an increase in these
errors, ensure that the cables connecting the drive are intact.
Logical Drive Information / Cache Volume Information
A list of logical drives associated with the controller displays in the Mass Storage submenu. Each
logical drive in the list displays the condition, logical drive number and the fault tolerance of that
logical drive. Select one of the logical drive entries to display the following information.
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Status—Displays the status of the logical drive. The logical drive can be in one of the following
states:
◦ OK—Indicates that the logical drive is in normal operation mode.
◦ Failed—Indicates that more physical drives have failed than the fault tolerance mode of
the logical drive can handle without data loss.
◦ Unconfigured—Indicates that the logical drive is not configured.
◦ Interim recovery—Indicates that the logical drive is using Interim Recovery Mode. In
Interim Recovery Mode, at least one physical drive has failed, but the logical drive's fault
tolerance mode lets the drive continue to operate with no data loss.
54 Agent information