HP ProLiant 4500 Compaq ProLiant 4500R Rack-Mountable Servers Maintenance and - Page 18

Important Guidelines About Replacing, Hot-Pluggable Hard Drives

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2-6 Removal and Replacement Procedures Important Guidelines About Replacing Hot-Pluggable Hard Drives When a drive configured for fault tolerance is replaced, the replacement drive will automatically begin being restored when it is installed. When a drive is in the process of being restored, the On-line LED will flash green. The LED will continue to flash until the drive is completely restored. Figure 2-4. Hot-Pluggable Hard Drive LED Indicators When replacing Hot-Pluggable hard drives, these guidelines must be followed: n Never remove more than one drive at a time. When a drive is replaced, the controller uses data from the other drives in the array to reconstruct data on the replacement drive. If more than one drive is removed, a complete data set is not available to reconstruct data on the replacement drive(s). n Never remove a working drive when another drive has failed. Drives that have been failed by the controller are indicated by the amber Drive Failure LED on the drive tray. Permanent data loss will occur if a working drive is removed when replacing a failed drive. n Never remove a drive while another drive is being rebuilt. A drives' On-line LED will be flashing green whenever it is being rebuilt. A replaced drive is restored from data stored on the other drives. n Never turn a ProLiant Storage System off while the Server controlling it is powered on. Doing so will cause the server's SMART Controller to mark the drives as "failed." This could result in permanent data loss. n If an on-line spare drive is installed, wait for it to complete rebuilding before replacing the failed drive. When a drive fails, the on-line spare will become active and begin being rebuilt as a replacement drive. Once the on-line spare has completed being rebuilt (On-line LED will be on solid), the failed drive should be replaced with a new replacement drive. Do not replace the failed drive with the on-line spare. n A POST error message (1786) will occur when the system is turned on if a drive(s) has been replaced while the system is OFF. When this occurs you will be prompted to: PRESS F1 TO BOOT THE SYSTEM AND REBUILD THE REPLACED DRIVE OR, PRESS F2 TO BOOT THE SYSTEM AND NOT REBUILD THE DRIVE(S). CAUTION: Pressing F2 will cause permanent data loss to the entire logical drive. F2 should be pressed only if all of the drives have been replaced or if complete data loss is desired. Maintenance and Service Guide

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2-6
Removal and Replacement Procedures
Maintenance and Service Guide
Important Guidelines About Replacing
Hot-Pluggable Hard Drives
When a drive configured for fault tolerance is replaced, the replacement drive will automatically
begin being restored when it is installed.
When a drive is in the process of being restored, the
On-line
LED will flash green.
The LED will continue to flash until the drive is completely
restored.
Figure 2-4.
Hot-Pluggable Hard Drive LED Indicators
When replacing Hot-Pluggable hard drives, these guidelines must be followed:
n
Never remove more than one drive at a time.
When a drive is replaced, the controller uses
data from the other drives in the array to reconstruct data on the replacement drive.
If more
than one drive is removed, a complete data set is not available to reconstruct data on the
replacement drive(s).
n
Never remove a working drive when another drive has failed.
Drives that have been
failed by the controller are indicated by the amber
Drive
Failure
LED on the drive tray.
Permanent data loss will occur if a working drive is removed when replacing a failed drive.
n
Never remove a drive while another drive is being rebuilt.
A drives'
On-line
LED will be
flashing green whenever it is being rebuilt.
A replaced drive is restored from data stored on
the other drives.
n
Never turn a ProLiant Storage System off while the Server controlling it is powered on.
Doing so will cause the server's
SMART Controller to mark the drives as "failed."
This
could result in permanent data loss.
n
If an on-line spare drive is installed, wait for it to complete rebuilding before replacing
the failed drive.
When a drive fails, the on-line spare will become active and begin being
rebuilt as a replacement drive. Once the on-line spare has completed being rebuilt (
On-line
LED will be on solid), the failed drive should be replaced with a new replacement drive.
Do
not
replace the failed drive with the on-line spare.
n
A POST error message (1786) will occur when the system is turned on if a drive(s) has
been replaced while the system is OFF.
When this occurs you will be prompted to:
PRESS F1 TO BOOT THE SYSTEM AND REBUILD THE REPLACED DRIVE
OR,
PRESS F2 TO BOOT THE SYSTEM AND NOT REBUILD THE DRIVE(S).
CAUTION:
Pressing F2 will cause permanent data loss to the entire logical drive. F2
should be pressed only if all of the drives have been replaced or if complete data loss
is desired.