HP ProLiant DL380 G5 Server - Manual (Page 47)

• Hard Read Errors—Displays the number of read errors that could not be recovered by a physical drive's Error
Correction Code (ECC) algorithm or through retries. Over time, a drive may produce these errors. If you receive
these errors, a problem may exist with your drive.
The severity of these errors depends on whether the managed system is running in a fault tolerant mode. With
fault tolerance, the controller can remap data to eliminate the problems caused by these errors.
• 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.
• 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 does implied seeks to the location where data resides.
These are not included in this count.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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
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.
• Status—D isplays 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.
• Ready rebuild—Indicates that the logical drive is ready for Automatic Data Recovery. The physical drive that
failed has been replaced, but the logical drive is still operating in Interim Recovery Mode.
• Rebuilding—Indicates that the logical drive is currently doing Automatic Data Recovery. During Automatic Data
Recovery, fault tolerance algorithms restore data to the replacement drive.
• Wrong drive—Indicates that the wrong physical drive was replaced after a physical drive failure.
• Bad connect—Indicates that a physical drive is not responding.
• Overheating—Indicates that the drive array enclosure that contains the logical drive is overheating. The drive
array is still functioning, but should be shutdown.
Agent information 47