Promise Technology Network Device EX8650 Manual do Utilizador Página 247
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Chapter 7: Technology Background
233
RAID 1E
Recommended Applications for RAID 1E
• Imaging applications
• Database servers
• General fileserver
RAID 5
Recommended applications for RAID 5:
• File and Application servers
• WWW, E-mail, and News servers
• Intranet servers
Advantages Disadvantages
Implemented as a mirrored logical
drive whose segments are RAID 0
logical drives
High I/O rates are achieved thanks to
multiple stripe segments
Can use an odd number of physical
drives
Very high physical drive overhead –
uses only 50% of total capacity
Advantages Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Most versatile RAID level
Physical drive failure has a medium
impact on throughput
- EX4650, EX8650 1
- EX8654, EX8658 1
- Copyright 2
- Trademarks 2
- Recommendations 2
- Contents 11
- Chapter 1: Introduction 15
- Product Overview 16
- Operating System Support 17
- Browser Support 18
- Key Features and Benefits 18
- Specifications 20
- Chapter 2: Installation 21
- Installing the SuperTrak Card 23
- Scenario 5: SAS Expanders 30
- Choosing the Physical Drives 31
- Installing the CLI 37
- Installing onto Linux 42
- Installing WebPAM PRO 51
- Internet Browser 52
- Setting up WebPAM PRO 71
- Chapter 3: Installing Drivers 73
- Driver Installation Media 74
- Linux and FreeBSD 75
- Windows Server 2008 76
- Existing System 77
- Windows Vista 78
- Windows Server 2003 80
- Windows XP 82
- New OS Installation 84
- Fedora Core 6 85
- Fedora Core 7, 8 86
- SuSE SLES 10, 10 SP1 88
- Miracle Linux 4 89
- FreeBSD 6.1, 6.2 90
- SuperTrak BIOS 95
- Accessing the Main Menu 98
- Selecting a Controller 99
- Managing Physical Drives 101
- Managing Disk Arrays 103
- Creating a Disk Array 104
- Changing Disk Array Settings 105
- Rebuilding a Disk Array 105
- Deleting a Disk Array 105
- Managing Logical Drives 106
- Creating a Logical Drive 107
- Initializing a Logical Drive 108
- Deleting a Logical Drive 109
- Managing Spare Drives 111
- Changing Spare Drive Settings 112
- Deleting a Spare Drive 113
- Viewing Background Activity 114
- Managing the Event Log 115
- Clearing the Event Logs 116
- Working with Time Sync 117
- Using the Miscellaneous Menu 118
- Logging into WebPAM PRO 121
- Logging in over the Network 122
- Login Screen 123
- Accessing the Interface 124
- Using the Header 125
- Using Tree View 125
- Using Management View 126
- Choosing a Display Language 127
- Viewing the Event Frame 127
- Saving the Event Frame 128
- Deleting the Event Frame 128
- Viewing the Storage Network 128
- Logging out of WebPAM PRO 129
- Managing Users 130
- Making Your Own User Settings 131
- Changing a User’s Password 131
- Changing Your Own Password 131
- Creating a User 132
- Deleting a User 132
- Adding a Subsystem or Host 134
- In-Band versus Out-of-Band 135
- Deleting a Subsystem or Host 135
- Setting User Privilege 136
- Managing Software Services 137
- Restarting the Tomcat Server 138
- Setting up Email Service 138
- Setting up Extended SMTP 139
- Sending A Test Email Message 139
- Changing CIM Client Settings 140
- Changing CIM Server Settings 140
- Managing the Host 141
- Managing the Subsystem 142
- Clearing Statistical Data 143
- Updating the Firmware 143
- Checking Subsystem Health 144
- Viewing the Runtime Event Log 144
- Saving the Runtime Event Log 145
- Viewing the NVRAM Event Log 145
- Saving the NVRAM Event Log 146
- Clearing the NVRAM Event Log 146
- Running Background Activities 148
- Running Media Patrol 148
- Running PDM 149
- Viewing Scheduled Activities 149
- Scheduling an Activity 149
- Deleting a Scheduled Activity 151
- Viewing System Configuration 151
- Managing the Controller 153
- Viewing Controller Statistics 155
- Making Controller Settings 155
- Clearing an Orphan Watermark 156
- Viewing Battery Information 156
- Silencing the Buzzer 157
- Making Buzzer Settings 157
- Testing the Buzzer 157
- Viewing Buzzer Information 158
- Managing Enclosures 159
- Promise Enclosures 161
- Adjustable Items 162
- Making Disk Array Settings 172
- Migrating a Disk Array 175
- Running PDM on a Disk Array 177
- Transitioning a Disk Array 178
- 7. Click the OK button 179
- Locating a Logical Drive 181
- Logical Drive Status 182
- Logical Drive Synchronization 182
- Running Redundancy Check 184
- Creating a Spare Drive 187
- Deleting Spare Drive 188
- Making Spare Drive Settings 188
- Running Spare Check 189
- Opening the CLI on Windows 193
- To open the CLI: 194
- 1. Open a terminal window 194
- Table of Supported Commands 195
- Notes and Conventions 197
- List of Supported Commands 198
- Examples 202
- Options 220
- Introduction to RAID 233
- RAID 0 – Stripe 234
- RAID 1 – Mirror 235
- RAID 1E – Enhanced Mirror 236
- RAID 10 – Mirror / Stripe 239
- RAID 50 Axles 241
- RAID 60 Axles 244
- Choosing a RAID Level 246
- Choosing Stripe Block Size 250
- Choosing Sector Size 250
- Choosing Cache Policy 251
- Capacity Coercion 252
- Initialization 253
- Hot Spare Drive(s) 253
- RAID Level Migration 254
- Delete and Recreate 261
- Media Patrol 262
- Transition 263
- Automatic Transition 265
- Manual Transition 265
- When a Physical Drive Fails 267
- With a Hot Spare Drive 269
- Without a Hot Spare Drive 269
- Rebuild Operation 269
- After a successful rebuild: 270
- • The alarm is silent 270
- Chapter 8: Troubleshooting 271
- Global LED Display 272
- Direct LED Display 272
- Open WebPAM PRO 275
- What to Look For 275
- Salvaging Physical Drives 279
- Rebuilding a Logical Drive 280
- Manual Rebuild: WebPAM PRO 281
- Cache Battery Does Not Charge 282
- Chapter 9: Support 283
- Drive Issues 284
- Post-Installation 286
- Contacting Technical Support 287
- Attn: Technical Support 289
- Limited Warranty 290
- Your Responsibilities 291
- (below) 298
- Appendix B: Upgrades 299
- Updating WebPAM PRO 300
- Installing the BBU 302
- Schematic Diagrams 305
- LED activity = Low 306
- Aggregate LED Display 307
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