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HP Smart Array B140i User Manual

HP Smart Array B140i
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Page #16 background image
Replacing, moving, or adding hard drives 16
illuminates when other problems occur such as when a fan fails, a redundant power supply fails, or
the system overheats.
A POST message lists failed drives when the system is restarted, as long as the controller detects at
least one functional drive.
HPE SSA lists all failed drives, and represents failed drives with a distinctive icon.
Systems Insight Manager can detect failed drives remotely across a network. For more information
about Systems Insight Manager, see the documentation on the Insight Management DVD or on the
Hewlett Packard Enterprise website (http://www.hpe.com/info/insightmgmt).
The System Management Homepage (SMH) indicates that a drive has failed.
On servers with Windows operating systems, the Event Notification Service posts an event to the
server IML and the Microsoft Windows system event log.
On servers with Linux operating systems, Linux agents log the event, create an IML entry, and
update /var/log/messages.
For more information about diagnosing drive problems, see ProLiant Gen9 Troubleshooting Guide,
Volume I: Troubleshooting.
CAUTION:
Sometimes, a drive that has previously been failed by the controller may seem to
be operational after the system is power-cycled or (for a hot-
pluggable drive) after the drive has
been removed and reinserted. Howev
er, continued use of such marginal drives may eventually
result in data loss. Replace the marginal drive as soon as possible.
Effects of a hard drive failure
When a hard drive fails, all logical drives that are in the same array are affected. Each logical drive in an
array might be using a different fault-tolerance method. Therefore, each logical drive can be affected
differently.
RAID 0 configurations cannot tolerate drive failure. If any physical drive in the array fails, all RAID 0
logical drives in the same array also fail.
RAID 1 configurations can tolerate one drive failure. If one physical drive in a RAID 1 configuration
fails, the RAID volume is still intact as a degraded RAID 1.
RAID 1+0 configurations can tolerate up to two drive failures as long as no failed drives are mirrored
to one another.
A RAID 1+0 configuration of four drives consists of two RAID 1 volumes of two drives each. One
drive from each RAID 1 volume can fail for a total of two failed drives. If both drives in one RAID 1
volume fail, the entire RAID 1+0 volume fails.
RAID 5 configurations can tolerate up to one drive failure. Data protection is provided by parity data.
This parity data is calculated stripe by stripe from the user data that is written to all other blocks within
that stripe. The blocks of parity data are distributed evenly over every physical drive within the logical
drive.
Compromised fault tolerance
CAUTION: When fault tolerance is compromised, data loss can occur. However, it may be
possible to recover the data. For more information, see "Recovering from compromised fault
tolerance (on page 17)."
If more drives fail than the fault-tolerance method can manage, fault tolerance is compromised, and the
logical drive fails. If this failure occurs, the operating system rejects all requests and indicates
unrecoverable errors.

Table of Contents

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HP Smart Array B140i Specifications

General IconGeneral
Controller ModelHP Smart Array B140i
InterfaceSATA
Number of Ports6
Maximum Drives Supported6
RAID Levels0, 1, 10
CompatibilityHP ProLiant Gen8 Servers
Form FactorEmbedded

Summary

Overview

About the HPE Dynamic Smart Array B140i RAID controller

Provides a detailed description of the HPE Dynamic Smart Array B140i RAID controller's features and architecture.

Enabling and configuring the controller

Boot mode

Explains how to set the system's boot mode between UEFI and Legacy BIOS for controller compatibility.

Enabling the controller

Details the steps required to enable the HPE Dynamic Smart Array B140i controller in the system's BIOS/RBSU.

Configuring an array

Guides users on setting up storage arrays using RAID methods for optimal performance and fault tolerance.

Installing device drivers

Replacing, moving, or adding hard drives

Recognizing drive failure

Methods to identify a failed hard drive using LED indicators and system messages.

Recovering from compromised fault tolerance

Procedures to attempt data recovery and restore logical volumes when fault tolerance is compromised.

Replacing hard drives

Step-by-step instructions for safely replacing failed hard drives in various RAID configurations.

Data recovery (rebuild)

Details the automatic data recovery process (rebuild) after a drive replacement.

Abnormal termination of a rebuild

Diagnoses and provides solutions for scenarios where the drive rebuild process fails to complete successfully.

Adding drives

Instructions on how to add new hard drives to a system and create new arrays.

Software and configuration utilities

HPE Smart Storage Administrator

Introduction to HPE SSA, the primary tool for configuring and managing Smart Array controllers.

Intelligent Provisioning

Overview of Intelligent Provisioning, a tool for simplifying server deployment and OS installation.

Diagnostic tools

Lists and describes various diagnostic tools available for troubleshooting array problems.

Electrostatic discharge

Preventing electrostatic discharge

Precautions to take to prevent damage to the system from electrostatic discharge (ESD).

Warranty and regulatory information

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