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Rebuilding a Unit Through 3DM

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Chapter 9. Maintaining Units A RAID 6 unit can have two simultaneous drive failures, before becoming inoperable. When a RAID 5 or RAID 6 is running in Degraded mode and you rebuild it, the missing data is reconstructed from all functioning drives. Note: If a rebuild fails, check the Alarms page for the reason. If there was an ECC error on the source disk, you can force the rebuild to continue by checking the Overwrite ECC Error policy on the Controller Settings page in 3DM and then running Rebuild again. This will cause uncorrectable blocks to be rewritten, but the data may be incorrect. It is recommended that you execute a file system check when the rebuild completes. Under Windows, you can do this by right-clicking on the Drive and choosing Properties; then on the Tools tab, click Check Now. Rebuilding a Unit Through 3DM When a drive on a unit becomes defective, you replace it with an available drive and then rebuild the unit. For units on 9550SX, 9590SE, and 9650SE controllers, if Auto Rebuild is enabled and a drive is available, starting the rebuild is optional as it will start automatically. To rebuild a unit through 3DM 1 If necessary, add a new drive to replace the failed drive. (For details, see "Adding a Drive" on page 134.) 2 In 3DM, choose Management > Maintenance. 3 In the Unit Maintenance section of the Maintenance page, select the degraded unit and click the Rebuild Unit button. 4 When a dialog box displays available drives, select the drive you want to replace the failed drive and click OK. Figure 65. Selecting a Drive when Rebuilding 5 If the degraded unit has more than one failed drive (for example, a RAID 10 where both mirrored pairs each have a failed drive), repeat step 3 and step 4 to select another drive. If rebuild scheduling is not enabled on the Scheduling page, the rebuild process begins almost immediately in the background. If rebuild scheduling is enabled, the unit will not start actively rebuilding until the next scheduled time. 156 3ware Serial ATA RAID Controller User Guide

Section	Page
Title Page	1
Table of Contents	3
About this User Guide	7
How this User Guide is Organized	7
Conventions	9
Screenshots	9
Using the 3ware HTML Bookshelf	9
Introducing the 3ware® SATA RAID Controller	11
What’s New with 9650SE Models	11
System Requirements	12
Motherboard and Slot Requirements	12
Drive Requirements	12
Operating System	13
Other Requirements	13
Understanding RAID Concepts and Levels	13
RAID Concepts	14
Available RAID Configurations	15
RAID 0	15
RAID 1	15
RAID 5	16
RAID 6	17
RAID 10	17
RAID 50	18
Single Disk	19
JBOD	19
Hot Spare	19
Determining What RAID Level to Use	20
Using Drive Capacity Efficiently	21
Support for Over 2 Terabytes	22
3ware Tools for Configuration and Management	22
Monitoring, Maintenance, and Troubleshooting Features	23
Getting Started with Your 3ware RAID Controller	26
Physically Install the Controller and Drives	26
Configure the RAID Unit	26
Install the Driver and Make the Operating System Aware of the New Drives	27
Set Up Management and Maintenance Features	27
Initial Settings for Policies and Background Tasks	28
First-Time RAID Configuration Using 3BM	30
Basic Steps for Creating a Unit	30
Specifying a Hot Spare	38
Leaving Individual Drives as JBODs	38
Checking the Motherboard Boot Sequence	39
What Next?	39
Driver Installation	40
Driver Installation Under Windows	41
Materials Required	41
Creating a 3ware Driver Diskette	42
Installing the 3ware Driver and Windows on a New Unit	42
Installing the Driver on a System that Boots from a Different Device	43
Making Units Managed by a 3ware Controller Available to Windows	48
Driver Installation Under Linux	49
Obtaining 3ware Linux Drivers	50
Be Sure to Use the Correct Drivers	50
Determining the Current Version of your 3ware Driver	51
Driver Installation Under Red Hat Linux or Fedora Core 5	51
Materials required	51
Creating a Red Hat Linux Driver Diskette	51
Installing the 3ware Kernel Driver Module while Installing Red Hat Linux on a New Unit	52
Installing the 3ware Kernel Driver Module on a Red Hat or Fedora Core Linux System that Boots From a Different Device	54
About Variables In the Kernel Driver Module Installation Instructions	54
Driver Installation Under SuSE Linux	57
Materials required	57
Creating a SuSE Linux Driver Diskette	57
Installing the 3ware Kernel Driver Module while Installing SuSE Linux on a New Unit	58
Installing the 3ware Kernel Driver Module on a SuSE Linux System that Boots from a Different Device	58
Compiling a 3ware Driver for Linux	60
Driver Installation Under FreeBSD	60
Obtaining 3ware FreeBSD Drivers	61
Materials Required	61
Installing the Driver under FreeBSD	61
Installing the Kernel Driver Module while Installing FreeBSD v6.1 on a Unit on the 3ware RAID Controller	61
Installing the 3ware Kernel Driver Module on a FreeBSD System that Boots from a Device on the Motherboard	64
Compiling and Loading the driver as a Module	65
3ware BIOS Manager 2 (3BM 2) Introduction	67
Starting 3BM 2	67
Exiting the 3BM Configuration Utility	69
Working in the 3BM Screens	70
Adjusting BIOS Loading Settings	73
Power-On Self Test (POST) Display Options	73
BIOS Loading Options	73
Displaying Controller Information	75
Getting Help While Using 3BM	75
3DM 2 (3ware Disk Manager) Introduction	76
Browser Requirements for 3DM	77
Setting up Mozilla Firefox	77
Installing 3DM	77
Installing 3DM on a Microsoft Windows system	78
Uninstalling 3DM under Microsoft Windows	81
Installing 3DM for Linux or FreeBSD	81
Uninstalling 3DM under Linux or FreeBSD	83
Starting 3DM and Logging In	83
Logging In to the 3DM Web Application	84
Starting the 3DM Daemon under Linux and FreeBSD	85
Starting the 3DM Process under Microsoft Windows	86
Viewing 3DM Remotely Using a Web Browser	86
Working with the 3DM Screens	87
3DM Menus	88
Viewing Information About Different Controllers	89
Refreshing the Screen	89
3DM Screens and What They're Used For	89
Setting Up 3DM Preferences	91
Setting and Changing 3DM Passwords	92
Managing E-mail Event Notification	92
Enabling and Disabling Remote Access	93
Setting the Incoming Port #	94
Setting the Frequency of Page Refreshes	94
Configuring Your Controller	95
Viewing Information About a Controller	95
About Controller Policies	97
Viewing Controller Policies	99
Setting the Auto Rebuild Policy	100
Using Auto-Carving for Multi LUN Support	101
Setting the Size of Volumes Created with Auto-Carving	103
Enabling and Setting Up Staggered Spin-up	104
Exporting JBOD Disks	105
Configuring Units	106
Configuring a New Unit	106
Configuration Options When Creating a Unit	107
Drives to be included in the unit	107
Type of configuration (RAID Level)	107
Name of the unit (optional)	108
Stripe size, if appropriate for the RAID level	108
Unit policies	108
Boot volume size	109
Creating a Unit through 3DM	109
Creating a Unit through 3BM	112
Ordering Units in 3BM	115
Partitioning, Formatting, and Mounting Units	116
Creating a Hot Spare	118
Specifying a Hot Spare through 3DM	119
Specifying a Hot Spare through 3BM	119
Naming a Unit	120
Setting Unit Policies	121
Enabling and Disabling the Unit Write Cache	123
Setting Auto Verify for a Unit	124
Setting Continue on Source Error During Rebuild	125
Enabling and Disabling Queuing for a Unit	126
Setting the StorSave Profile for a Unit	127
About StorSave Profile Levels	127
Setting the StorSave Profile through 3DM	129
Setting the StorSave Profile through 3BM	129
Changing An Existing Configuration by Migrating	130
RAID Level Migration (RLM) Overview	131
Changing RAID Level	132
Expanding Unit Capacity	133
Informing the Operating System of Changed Configuration	134
Deleting a Unit	135
Deleting a Unit through 3DM	136
Deleting a Unit through 3BM	137
Removing a Unit	138
Removing a Unit Through 3DM	139
Removing a Unit Through 3BM	140
Moving a Unit from One Controller to Another	141
Moving Units from an 8000 Controller to a 9000 Controller	141
Moving Legacy JBOD Units to a 9000 Controller	142
Moving Units from a 9500S to a 9550SX, 9590SE, or 9650SE Controller	143
Adding a Drive	144
Removing a Drive	145
Rescanning the Controller	146
Maintaining Units	148
Checking Unit and Drive Status through 3DM	148
Enclosure LED Status Indicators	150
Unit Statuses	150
Drive Statuses	152
About Degraded Units	152
About Inoperable Units	153
Alarms, Errors, and Other Events	153
Viewing Alarms, Errors, and Other Events	153
Using the Alert Utility Under Windows	154
Downloading an Error Log	156
Viewing SMART Data About a Drive	156
Background Tasks	157
About Initialization	158
Foreground Versus Background Initialization	158
Initialization of Different RAID Types	159
Background Initialization After Power Failure	161
About Verification	161
What Verification Does	162
Verification of Non-Redundant Units	162
Verification of Redundant Units	162
How Errors Are Handled	163
Starting a Verify Manually	163
Rebuilding Units	165
Rebuilding a Unit Through 3DM	166
Rebuilding Units through 3BM	167
Cancelling a Rebuild and Restarting It with a Different Drive	169
Setting Background Task Rate	170
Background Task Prioritization	171
Scheduling Background Tasks	171
Scheduled Task Duration	172
Viewing Current Task Schedules	172
Turning On or Off Use of a Task Schedule	173
Removing a Task Schedule	174
Adding a New Task Schedule Slot	174
Selecting Self-tests to be Performed	175
Locating a Drive by Blinking Its LED	176
Maintaining Your Controller	178
Determining the Current Version of Your 3ware Driver	178
Updating the Driver and Firmware	179
Updating the 3ware Driver and Firmware Under Windows	180
Using the Update Utility With Multiple Controllers	185
Updating the 3ware Driver Under Windows XP	186
Updating the 3ware Driver Under Red Hat or Fedora Core	191
Updating the 3ware Driver Under SuSE	193
Updating the 3ware Driver Under FreeBSD	194
Updating the Firmware Under Linux and FreeBSD	195
Viewing Battery Information	196
Testing Battery Capacity	197
3DM 2 Reference	199
Controller Summary page	200
Controller Details page	201
Unit Information page	202
Unit Details page	203
Drive Information page	205
Drive Details window	206
Extra Drive Information	206
SMART Data	207
Controller Settings page	207
Scheduling page	211
Task Schedules	212
Self-test Schedules	212
Maintenance page	214
Drive Information	216
Maintenance Task Buttons	217
Create Unit	220
Alarms page	222
Battery Backup page	223
Enclosure Summary page	225
Enclosure Details page	226
3DM 2 Settings page	227
E-mail Notification	227
Password	228
Page Refresh	228
Remote Access	229
HTTP Settings	229
Troubleshooting	230
Web Resources	230
Before Contacting Customer Support	231
Command Logging	231
Problems and Solutions	232
Hardware Installation	232
Software Installation	232
Problems in 3DM	233
Error and Notification Messages	234
Error and Notification Message Details	237
Appendices	253
Glossary	254
Compliance and Conformity Statements	260
FCC Radio Frequency Interference Statement	260
Microsoft Windows Hardware Quality Lab	261
European Community Conformity Statement	261
Warranty, Technical Support, and Service	262
Limited Warranty	262
Warranty Service and RMA Process	263
AMCC Technical Support and Services	264
Sales and ordering information	264
Feedback on this manual	264

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Chapter 9. Maintaining Units

156

3ware Serial ATA RAID Controller User Guide

A RAID 6 unit can have two simultaneous drive failures, before becoming

inoperable.

When a RAID 5 or RAID 6 is running in Degraded mode and you rebuild it,

the missing data is reconstructed from all functioning drives.

Rebuilding a Unit Through 3DM

When a drive on a unit becomes defective, you replace it with an available

drive and then rebuild the unit. For units on 9550SX, 9590SE, and 9650SE

controllers, if Auto Rebuild is enabled and a drive is available, starting the

rebuild is optional as it will start automatically.

To rebuild a unit through 3DM

If necessary, add a new drive to replace the failed drive. (For details, see

“Adding a Drive” on page 134.)

In 3DM, choose

Management > Maintenance

In the

Unit Maintenance

section of the Maintenance page, select the

degraded unit and click the

Rebuild Unit

button.

When a dialog box displays available drives, select the drive you want to

replace the failed drive and click

Figure 65.

Selecting a Drive when Rebuilding

If the degraded unit has more than one failed drive (for example, a RAID

10 where both mirrored pairs each have a failed drive), repeat step 3 and

step 4 to select another drive.

If rebuild scheduling is not enabled on the

Scheduling

page, the rebuild

process begins almost immediately in the background. If rebuild

scheduling is enabled, the unit will not start actively rebuilding until the

next scheduled time.

Note:

If a rebuild fails, check the Alarms page for the reason. If there was an ECC

error on the source disk, you can force the rebuild to continue by checking the

Overwrite ECC Error policy on the Controller Settings page in 3DM and then

running Rebuild again. This will cause uncorrectable blocks to be rewritten, but the

data may be incorrect. It is recommended that you execute a file system check

when the rebuild completes. Under Windows, you can do this by right-clicking on

the Drive and choosing

Properties

; then on the

Tools

tab, click

Check Now