Compaq ProLiant 6400R Compaq ProLiant 6400R Setup and Installation Guide - Page 76

Accessing Hot-Plug SCSI Hard Drives, Important Guidelines About Replacing Hot-Plug SCSI Hard Drives

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Installing Hardware Options 3-23 Accessing Hot-Plug SCSI Hard Drives IMPORTANT: Before adding or removing any hot-plug SCSI drives, be sure to set the drive in the STANDBY mode, as directed by the operating system instructions. Important Guidelines About Replacing Hot-Plug SCSI Hard Drives Use the following guidelines when replacing hot-plug hard drives: Never remove a hot-plug drive if the LED is green. Replace a hot-plug hard drive only when the drive LED is amber. 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. Never remove a working drive when another drive has failed. Drives marked as failed by the controller are indicated by the amber Drive Failure LED on the drive tray. Permanent data loss occurs when a working drive is removed during replacement of a failed drive. Never remove a drive while another drive is being rebuilt. The online LED on the drive flashes green during the rebuild process. A replaced drive is restored from data stored on the other drives. Never turn a ProLiant 6400R Storage System off while the server controlling it is powered on. Doing so causes the server's Smart controller to mark the drives as "failed." This action could result in permanent data loss. If an online spare drive is installed, wait for it to finish rebuilding before replacing the failed drive. When a drive fails, the online spare becomes active and begins being rebuilt as a replacement drive. After the online spare has been completely rebuilt (the online LED is solid green), replace the failed drive with a new drive. Do not replace the failed drive with the online spare.

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Installing Hardware Options
3-23
Accessing Hot-Plug SCSI Hard Drives
IMPORTANT:
Before adding or removing any hot-plug SCSI drives, be sure to set the
drive in the STANDBY mode, as directed by the operating system instructions.
Important Guidelines About Replacing Hot-Plug
SCSI Hard Drives
Use the following guidelines when replacing hot-plug hard drives:
■
Never remove a hot-plug drive if the LED is green. Replace a hot-plug
hard drive only when the drive LED is amber.
■
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.
■
Never remove a working drive when another drive has failed. Drives
marked as failed by the controller are indicated by the amber Drive
Failure LED on the drive tray. Permanent data loss occurs when a
working drive is removed during replacement of a failed drive.
■
Never remove a drive while another drive is being rebuilt. The online
LED on the drive flashes green during the rebuild process. A replaced
drive is restored from data stored on the other drives.
■
Never turn a ProLiant 6400R Storage System off while the server
controlling it is powered on. Doing so causes the server's Smart
controller to mark the drives as "failed." This action could result in
permanent data loss.
■
If an online spare drive is installed, wait for it to finish rebuilding before
replacing the failed drive. When a drive fails, the online spare becomes
active and begins being rebuilt as a replacement drive. After the online
spare has been completely rebuilt (the online LED is solid green),
replace the failed drive with a new drive. Do not replace the failed drive
with the online spare.