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3Ware 9550SXU16MLB10 User Guide - Page 18

Hot Spare, Determining What RAID Level to Use

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Introducing the 3ware 9000 Series Controller JBOD units are not fault tolerant and therefore not recommended for high availability systems unless additional precautions are taken to prevent system hangs and data loss. Hot Spare A single drive, available online, so that a redundant array can be automatically rebuilt in case of drive failure. For additional information about RAID levels, see the article "RAID Primer" on the 3ware website, at: http://www.3ware.com/products/pdf/ RAID_Primer.pdf. Determining What RAID Level to Use Select the RAID configuration to use based on the applications to be used on the system, whether performance or data protection is of primary importance, and the number of disk drives available for use. Review the information under "Understanding RAID Concepts and Levels" on page 8 to determine the type of RAID configuration most appropriate for your needs and use the tables below to determine what RAID levels are available, based on your particular controller model and the number of available drives. The RAID configurations available to you are determined by the number of ports on your controller, and the number of drives attached to those ports. You can configure all drives in one unit, or you can configure multiple units, if you have enough drives. Table 2: Possible Configurations Based on Number of Drives # Drives 1 2 3 4 5 Possible RAID Configurations Single drive or hot spare RAID 0 or RAID 1 RAID 0 RAID 1 with hot spare RAID 5 RAID 5 + hot spare RAID 10 Combination of RAID 0, RAID 1, single disk RAID 5 + hot spare RAID 10 + hot spare Combination of RAID 0, RAID 1, hot spare, for single disk 12 3ware 9000 Series Serial ATA RAID Controller User Guide

Section	Page
About This Guide	7
How this Guide is Organized	7
Conventions	9
Introducing the 3ware 9000 Series Controller	11
Product Features	11
What’s New With the 3ware 9000 Series Controller	12
System Requirements	12
Understanding RAID Concepts and Levels	14
Available RAID Configurations	15
RAID 0	15
RAID 1	15
RAID 5	16
RAID 10	16
RAID 50	17
Single Disk	17
JBOD	17
Hot Spare	18
Determining What RAID Level to Use	18
Support for Over 2 Terabytes	19
3ware Tools for Configuration and Management	20
3BM (3ware BIOS Manager)	20
3DM 2 (3ware Disk Manager)	20
3ware CLI (Command Line Interface)	21
Monitoring, Maintenance, and Troubleshooting Features	21
Getting Started with Your 3ware RAID Controller	23
Physically Install the Controller and Drives	23
Configure the RAID Unit and Drives	23
Install the Drivers and Make the Operating System Aware of the New Drives	24
Set Up Management and Maintenance Features	24
3ware BIOS Manager (3BM)	25
Starting 3BM	26
Working in the 3BM Screens	28
Displaying Advanced Details	31
Getting Help While Using 3BM	31
Exiting the 3BM Configuration Utility	32
3ware Disk Manager (3DM 2)	33
Browser Requirements for 3DM	34
Setting up Mozilla	34
Installing 3DM	35
Installing 3DM on a Microsoft Windows system	35
Uninstalling 3DM under Microsoft Windows	38
Installing 3DM for Linux or FreeBSD	38
Uninstalling 3DM under Linux or FreeBSD	40
Starting 3DM and Logging In	40
Starting 3DM under Linux	41
Starting 3DM under Microsoft Windows	41
Viewing 3DM Remotely via a Standard Web Browser	42
Logging In	42
Working with the 3DM Screens	43
3DM Menus	44
Viewing Information About Different Controllers in 3DM	45
Refreshing the Screen	45
3DM Screens and What They're Used For	45
Setting Up 3DM Preferences	47
Setting and Changing 3DM Passwords	47
Managing E-mail Event Notification	48
Enabling and Disabling Remote Access	49
Setting the Incoming Port #	49
Setting the Frequency of Page Refreshes	49
3DM 2 Reference	51
Controller Summary Page	51
Controller Details Page	53
Unit Information Page	54
Unit Details Page	55
Drive Information Page	57
SMART Details About Drive at Particular Port Page	58
Controller Settings Page	59
Background Task Rate	59
Unit Policies	60
Unit Names	61
Other Controller Settings	61
Scheduling Page	62
About Task Schedules	63
About Self-tests	63
Maintenance Page	64
Rescan Controller	65
Unit Maintenance	66
Available Drives (to Create Units)	70
Alarms Page	72
Battery Backup Page	74
3DM 2 Settings Page	76
E-mail Notification	76
Password	77
Page Refresh	77
Remote Access	78
Incoming Port #	78
Configuring Your Controller	79
Viewing Information About Different Controllers	79
Viewing Controller Policies in 3DM	81
Setting Policies for a Controller through 3BM	82
Exporting JBOD Disks	83
Enabling and Setting Up Staggered Spinup	84
Disabling Write Cache on Unit Degrade	85
Multi LUN Support and Auto-Carving	85
Configuring Units	89
Configuring Units in 3DM via the Maintenance Page	90
Configuring Units in 3BM via the main 3BM Screen	90
Creating a New Unit	91
Drives to be included in the unit	91
Type of configuration	92
Name of the unit (optional)	92
Stripe size, if appropriate for the RAID level	92
Creating a Unit through 3DM	92
Creating a Unit through 3BM	93
Ordering Units in 3BM	97
Partitioning and Formatting Units	97
Creating a Hot Spare	98
Specifying a Hot Spare through 3DM	99
Specifying a Hot Spare through 3BM	100
Enabling and Disabling the Unit Write Cache	101
Enabling and Disabling the Unit Write Cache through 3DM	101
Enabling or Disabling the Write Cache through 3BM	102
Setting Unit Policies through 3DM	103
Changing An Existing Configuration	104
RAID Level Migration (RLM) Overview	104
Changing RAID Level	106
Expanding Unit Capacity	107
Informing the Operating System of Changed Configuration	108
Deleting a Unit	109
Deleting a Unit through 3DM	109
Deleting a Unit through 3BM	111
Removing a Unit	112
Removing a Unit Through 3DM	113
Removing a Unit Through 3BM	114
Moving a Unit from One Controller to Another	115
Unlocking Drives Configured on a 9000 Series Controller	115
Adding a Drive through 3DM	116
Removing a Drive	117
Rescanning the Controller	119
Naming a Unit	120
Maintaining Units	121
Checking Unit and Drive Status through 3DM	121
Reviewing Alarms and Errors	123
Viewing Alarms	123
Downloading an Error Log	124
Viewing SMART Data About a Drive	124
About Background Tasks	125
About Initialization	125
Foreground Versus Background Initialization	125
Initialization of Different RAID Types	126
Initialization of RAID 0 Units	126
Initialization of RAID 5 and RAID 50 Units	126
Initialization of RAID 1 and RAID 10 Units	126
Auto Initialization After Power Failure	127
About Rebuilds	127
About Verification	128
About Verifies of Non-Redundant Units	128
About Verifies of Redundant Units	129
How Errors Are Handled	129
About Migration	129
Moving a Unit to Another Controller During Migration	130
About Self-tests	130
Setting Background Task Rate	130
Scheduling Background Tasks	131
Prioritization of Background Tasks	132
Scheduled Task Duration	132
Viewing Current Task Schedules	132
Turning On or Off Use of a Task Schedule	133
Removing a Task Schedule	134
Adding a New Task Schedule Slot	135
Selecting Self-tests to be Performed	135
Rebuilding Units	136
Rebuilding a Unit Through 3DM	137
Rebuilding Units through 3BM	138
Cancelling a Rebuild and Restarting It with a Different Drive	140
Verifying Units	141
Verifying a Unit through 3DM	141
Verifying a Unit through 3BM	142
Maintaining Your Controller	145
Determining the Current Version of Your 3ware Driver	145
Updating the Driver and Firmware	146
Updating the 3ware Driver and Firmware Under Windows	147
Using the Update Utility With Multiple Controllers	151
Updating the 3ware Driver Under Windows XP	152
Updating the 3ware Driver Under Red Hat	159
Updating the 3ware Driver Under SuSE	160
Updating the 3ware Driver Under FreeBSD	161
Viewing Battery Information	162
Testing Battery Capacity	163
Troubleshooting: Problems and Solutions	165
Before Contacting Customer Support	165
Problems in 3DM	166
Hardware Installation	166
Software Installation	167
Screen Display Messages	168
AEN Messages	169
AEN 001h SOFT_RESET	171
AEN 002h AEN_DEGRADED_UNIT	172
AEN 003h AEN_CONTROLLER_ERROR	172
AEN 004h AEN_REBUILD_FAIL	172
AEN 005h AEN_REBUILD_DONE	172
AEN 006h AEN_INCOMP_UNIT	172
AEN 007h AEN_INIT_DONE	173
AEN 008h AEN_UNCLEAN_SHUTDOWN	173
AEN 009h AEN_APORT_TIMEOUT	173
AEN 00Ah AEN_DRIVE_ERROR	173
AEN 00Bh AEN_REBUILD_STARTED	173
AEN 00Ch AEN_INIT_STARTED	174
AEN 00Eh AEN_INIT_FAILED	174
AEN 00Fh AEN_SMART_FAIL	174
AEN 021h AEN_UDMA_DOWNGRADE	174
AEN 022h AEN_UDMA_UPGRADE	174
AEN 023h AEN_SECTOR_REPAIR	174
AEN 024h AEN_SBUF_FAIL	175
AEN 025h AEN_LOST_CACHED_WRITE	175
AEN 026h AEN_DRIVE_ECC_ERROR	175
AEN 027h AEN_DCB_XSUM_ERROR	176
AEN 028h AEN_DCB_BAD_VERSION	176
AEN 029h AEN_VERIFY_STARTED	176
AEN 02Ah AEN_VERIFY_FAILED	176
AEN 02Bh AEN_VERIFY_DONE	177
AEN 02Ch AEN_SECTOR_OVERWRITE	177
AEN 02Dh AEN_RBLD_SOURCE_ERROR	177
AEN 02Eh AEN_REPLACE_DRIVE_TOO_SMALL	177
AEN 02Fh AEN_UNIT_NOT_ZEROED	177
AEN 030h AEN_DRIVE_NOT_SUPPORTED	177
AEN 032h AEN_SPARE_INADEQUATE	178
AEN 036h AEN_VERIFY_ERROR	178
AEN 037h AEN_INCOMPATIBLE_SODIMM	178
AEN 038h AEN_NO_SODIMM	178
AEN 039h AEN_COR_SBUF_ECC	178
AEN 03Ah AEN_DRIVE_POR_DETECTED	178
AEN 03Bh AEN_REBUILD_PAUSED	178
AEN 03Ch AEN_INIT_PAUSED	178
AEN 03Dh AEN_VERIFY_PAUSED	178
AEN 03Fh AEN_FLASH_FILE_CORRUPT	178
AEN 040h AEN_FLASH_FILE_REPAIRED	179
AEN 041h AEN_UGT_CORRUPT	179
AEN 042h AEN_PRIMARY_DCB_ERROR	179
AEN 043h AEN_BACKUP_DCB_ERROR	179
AEN 044h AEN_VOLTAGE_NORMAL	179
AEN 045h AEN_VOLTAGE_LOW_WARN	179
AEN 046h AEN_VOLTAGE_HIGH_WARN	180
AEN 047h AEN_VOLTAGE_BELOW_OPERATING	180
AEN 048h AEN_VOLTAGE_ABOVE_OPERATING	180
AEN 049h AEN_TEMPERATURE_NORMAL	180
AEN 04Ah AEN_TEMPERATURE_LOW_WARN	180
AEN 04Bh AEN_TEMPERATURE_HIGH_WARN	180
AEN 04Ch AEN_TEMPERATURE_BELOW_OPERATING	181
AEN 04Dh AEN_TEMPERATURE_ABOVE_OPERATING	181
AEN 04Eh AEN_LOW_CURRENT_TEST_STARTED	181
AEN 04Fh AEN_CACHE_SYNC_SKIPPED	181
AEN 050h AEN_LOW_CURRENT_TEST_STOPPED	181
AEN 051h AEN_HIGH_CURRENT_TEST_STARTED	182
AEN 052h AEN_HIGH_CURRENT_TEST_STOPPED	182
AEN 053h AEN_NEED_CAPACITY_TEST	182
AEN 055h AEN_CHARGE_STARTED	182
AEN 056h AEN_CHARGE_STOPPED	182
AEN 057h AEN_CHARGE_FAULT	182
AEN 058h AEN_CAPACITY_WARN	182
AEN 059h AEN_CAPACITY_ERROR	182
AEN 05Ah AEN_BATTERY_PRESENT	183
AEN 05Bh AEN_BATTERY_NOT_PRESENT	183
AEN 05Ch AEN_HIGH_CURRENT_TEST_WARN	183
AEN 05Dh AEN_HIGH_CURRENT_TEST_FAULT	183
AEN 05Eh AEN_CACHE_SYNC_PASS	183
AEN 05Fh AEN_CACHE_SYNC_FAIL	183
AEN 0FFh AEN 0FFh AEN_QUEUE_FULL	183
Glossary	185
Appendix A. Compliance and Conformity Statements	191
Federal Communications Commission Radio Frequency Interference Statement	191
Microsoft Windows Hardware Quality Lab (WHQL)	192
European Community Conformity Statement	192
Appendix B. Warranty, Technical Support and Service	193
Limited Warranty	193
Exclusions	193
State Law Provisions	194
Obtaining Warranty Protection	194
AMCC Technical Support and Services	195
Sales and ordering information	195