HP Insight Management Agents - Manual (Page 50)

• 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—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.
— 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.
When the status is Rebuilding one of the following values displays to indicate the
progress of the rebuild:
◦ Percent Rebuild Complete—Displays the percent complete of the rebuild. When
the value reaches 100, the rebuilding process is complete. The drive array continues
to operate in interim recovery mode while the drive is rebuilding.
◦ Rebuild Blocks Left—Displays the number of blocks of data that still need to be
redistributed. When the value reaches 0, the rebuilding process is complete. The
array continues to operate in interim recovery mode while the drive is rebuilding.
◦ Rebuilding Drive—Identifies the physical drive that failed. The logical drive is
rebuilding using a spare drive in place of this failed 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.
50 Agent information