Predictive Failure Alert - Compaq N2400 - TaskSmart - 1 GB RAM Administration Manual

C-6 Compaq TaskSmart N2400 Administration Guide

Predictive Failure Alert

The predictive failure alert is a powerful problem-prevention tool that warns
you when the system has determined a drive failure is imminent. This alert
allows you to proactively schedule downtime for maintenance and not
interrupt critical business operations that rely on your servers. In addition, with
hot-pluggable drives connected to Compaq Smart Array Controllers, you can
remove and replace one or several drives within a server while the system is
online, which minimizes the interruption of the network, server downtime, and
data loss. Refer to your Compaq Insight Manager and Compaq Management
Agents for Servers documentation (found on the Compaq Management CD)
for instructions on implementing this function.
CAUTION: Not following the documented guidelines could result in data loss.
CAUTION: To reduce the risk of data loss it is recommended that some level of
fault tolerance be utilized in your RAID configuration. Refer to your Smart Array
Controller user guide for information on fault tolerance options.
IMPORTANT: You must use Compaq Insight Manager and a Compaq Smart Array
Controller to manage the drive array on your server if you wish to implement predictive
failure alert.
Predictive Failure Replacement Guidelines
To minimize server downtime and data loss, use these guidelines when
Compaq Insight Manager implements a predictive failure alert. The alert
indicates that a drive is degraded and should be replaced.
Ensure that all physical drives in the affected array are present and have
the online LEDs illuminated before removing the degraded hot-plug
drive. If any online LEDs are flashing (indicating a rebuild) or are not
illuminated, the degraded drive must not be removed.
For instructions on hot-plugging your hard drive, see the "Moving
Drives" and "Replacing a Failed Drive and Using Spares" sections in
Chapter 6, "Advanced Administrative Procedures."
Check for cabling configurations that are not supported. Signal integrity
errors may be injected into the SCSI bus when an active drive is
hot-plugged.