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B
Selecting the Best RAID Level
In this appendix...
Comparing RAID Levels ...................................................................................................... 154
Understanding Drive Segments........................................................................................... 154
Non-redundant Logical Drives (RAID 0) ........................................................................... 155
RAID 1 Logical Drives.......................................................................................................... 156
RAID 1 Enhanced Logical Drives ........................................................................................ 156
RAID 10 Logical Drives........................................................................................................ 157
RAID 5 Logical Drives.......................................................................................................... 158
RAID 5EE Logical Drives..................................................................................................... 159
RAID 50 Logical Drives........................................................................................................ 160
RAID 6 Logical Drives.......................................................................................................... 161
RAID 60 Logical Drives........................................................................................................ 161
When you create logical drives in Adaptec Storage Manager, you can assign a RAID level to
protect your data.
Each RAID level offers a unique combination of performance and redundancy. RAID levels
also vary by the number of disk drives they support.
This chapter provides a comparison of all the RAID levels supported by Adaptec Storage
Manager, and provides a basic overview of each to help you select the best level of protection
for your storage system.
- Adaptec Storage Manager 1
- Copyright 2
- Trademarks 2
- Disclaimer 2
- Software License Agreement 4
- Contents 6
- 3 Building Your Storage Space 7
- 5 Protecting Your Data 7
- 11 Solving Problems 8
- Part III: Appendices 9
- About This Guide 10
- How This Guide is Organized 11
- Getting Started 12
- Linux or Unix users only 14
- A Simple Storage Space 15
- An Advanced Storage Space 15
- System Requirements 17
- Controller Support 17
- Installing on Windows 19
- ● 8003 (TCP) 23
- ● 34580 (TCP) 23
- ● 34570 to 34579 (TCP) 23
- ● 34570 (UDP) 23
- ● 34577 to 34580 (UDP) 23
- Building Your Storage Space 26
- Overview 27
- Choosing a Management System 27
- Users can... User’s can’t 28
- Starting and Logging In 29
- Starting the Agent Only 32
- Starting the Full Application 32
- Removing a Remote System 34
- Creating Logical Drives 35
- Tab for second logical drive 41
- Managing Your Storage Space 42
- Monitoring and Modifying Your 43
- Storage Space 43
- Part II: 43
- Overview of the Main Window 45
- The Enterprise View 46
- Enclosure 47
- Controller 47
- The Logical Devices View 48
- Logical drive 49
- Logical drive being modified 49
- Getting Help 51
- Logging Back In 52
- Protecting Your Data 54
- Hot Spare Limitations 55
- Icon Explanation Action 56
- Deleting a Global Hot Spare 57
- Enabling Copyback 58
- Understanding Logical Drives 60
- Disk drive icons show 62
- Free segments of 63
- Fine-tuning Logical Drives 64
- Changing the Stripe Size 65
- Verifying Logical Drives 68
- Flashing arrow 71
- Deleting a Logical Drive 72
- Creating a RAID Volume 72
- Creating a JBOD Disk 74
- Deleting a JBOD Disk 76
- Configuring the MaxIQ Cache 79
- Intensive Jobs 81
- Scheduling a Task 82
- Opening the Task Manager 83
- Modifying a Task 85
- Deleting a Task 85
- Disabling the Task Manager 85
- Re-enabling the Task Manager 86
- Maintaining Physical Devices 87
- To Blink... Right-click 88
- Initializing Disk Drives 90
- Clearing Disk Drives 90
- Name Description 91
- SSD wear-level and 91
- Registering New Controllers 92
- Testing a Controller Alarm 92
- Silencing a Controller Alarm 93
- Disabling a Controller Alarm 93
- Rescanning a Controller 93
- ● Controllers 94
- ● Disk drives 94
- ● Logical drives 94
- Working with System Alarms 95
- Working with Enclosure Alarms 97
- Before You Begin 100
- Caution: 102
- In this chapter 103
- Monitoring Options 104
- Icon Status Examples 105
- Double-click to view event 105
- ● Host name or TCP/IP address 107
- Sending a Test Event 109
- Sending a Test Message 114
- Modifying Email Settings 115
- Disabling Email Notifications 116
- ● Linux, see page 118 117
- /var/agentx/master 118
- Setting Up Statistics Logging 120
- Disabling Call Home Messages 123
- Viewing Statistics 124
- Storage Manager 125
- Adding Enhanced Features 126
- Managing Remote Systems 128
- Working with Display Groups 132
- Creating Display Groups 133
- Viewing Display Group Status 134
- Renaming a Display Group 135
- Deleting a Display Group 135
- Solving Problems 136
- General Troubleshooting Tips 137
- Rebuilding Logical Drives 141
- Solving Notification Problems 142
- Warning Messages 143
- Error Messages 143
- Error Error Message Text 144
- Appendices 149
- Part III: 149
- Completing a Silent Windows 150
- Installation 150
- Property Values 152
- Selecting the Best RAID Level 153
- RAID 1 Logical Drives 156
- RAID 10 Logical Drives 157
- RAID 5 Logical Drives 158
- RAID 5EE Logical Drives 159
- RAID 50 Logical Drives 160
- RAID 6 Logical Drives 161
- RAID 60 Logical Drives 161
- Quick Answers to Common 162
- Questions 162
- How do I...? 163
- Local and remote systems 165
- Controllers? 166
- Disk drives? 166
- Enclosures? 166
- Logical drives? 167
- Direct Attached Storage? 167
- The Notification Manager? 167
- The Task Manager? 168
- Buttons and Icons At-a-Glance 169
- Enclosure Status Icons 170
- Icon Description 171
- Button Click to... More on 172
- Glossary 174
- Glossary ● 175 175
- Glossary ● 176 176
- Glossary ● 177 177
- Glossary ● 178 178
- Index ● 180 180
- Index ● 181 181
- Index ● 182 182
- Index ● 183 183
- Index ● 184 184
- Index ● 185 185
- Index ● 186 186
- Index ● 187 187
- PMC-Sierra, Inc 188
- 1380 Bordeaux Drive 188
- Sunnyvale, CA 94089 USA 188
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