Promise Technology Smartstor NS4600 User Manual Page 309
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- TROUBLESHOOTING
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Chapter 6: Technology Background
297
RAID 1 – Mirror
When a RAID Volume is mirrored, identical data is written to a pair of disk drives,
while reads are performed in parallel. The reads are performed using elevator
seek and load balancing techniques where the workload is distributed in the most
efficient manner. Whichever drive is not busy and is positioned closer to the data
will be accessed first.
With RAID 1, if one disk drive fails or has errors, the other mirrored disk drive
continues to function. This is called Fault Tolerance. Moreover, if a spare disk
drive is present, the spare drive will be used as the replacement drive and data
will begin to be mirrored to it from the remaining good drive.
Figure 2. RAID 1 Mirrors identical data to two drives
The RAID Volume’s data capacity equals the smaller disk drive. For example, a
100 GB disk drive and a 120 GB disk drive have a combined capacity of 100 GB
in a mirrored RAID Volume.
If disk drives of different capacities are used, there will also be unused capacity
on the larger drive.
RAID 1 Volumes on SmartStor consist of two disk drives.
If you want a mirrored RAID Volume with more than two disk drives, see
“RAID 10 – Mirror / Stripe” on page 299.
1
2
3
4
1
2
3
4
Data Mirror
disk drives
- SMARTSTOR 1
- Copyright 2
- Trademarks 2
- Recommendations 2
- Contents 11
- About This Manual 13
- Architecture 14
- Protocol Support 14
- Key Benefits 14
- Specifications 15
- Compatible Backup Software 16
- Client OS Support 16
- Browser Support 17
- Installing Disk Drives 21
- Connecting to the Network 22
- Connecting the Power 22
- Installing the Software 22
- OS Support 23
- Installation: Windows 23
- Installation: Mac 26
- Setting up the SmartStor 27
- Login button 28
- One Click Setup 29
- Connecting to PASM 35
- Product Manual on the CD 36
- PASM in your Browser 37
- Finish button 47
- On a Windows or Mac 48
- On the Mac Desktop 55
- Setting up Windows Printing 59
- Setting up Linux Printing 62
- 10. Click the Finish button 64
- Setting up Mac Printing 65
- Connecting a USB Drive 67
- Windows PC 68
- Linux PC 68
- Disconnecting a USB Drive 69
- Setting-up Apple iTunes 70
- SmartStor 73
- Choosing a SmartNAVI Language 77
- Main Window 78
- Viewing SmartNAVI Information 79
- Closing SmartNAVI 81
- Creating the Default User 85
- Changing User Passwords 86
- Viewing a List of Users 88
- Deleting Members from a Group 92
- Managing RAID Volumes 97
- Expanding a RAID Volume 99
- Viewing RAID Volume Status 100
- The Volume Status appears 101
- 1. Go to the Main Window 101
- Recreating a RAID Volume 102
- 5. Click the OK button. (E) 103
- Managing Backups 104
- Chapter 4: SmartNAVI 105
- Device List 108
- Tray Icon 109
- Scheduling a Backup 110
- 9. Click the Add button 115
- Viewing Backup Schedules 116
- Changing a Scheduled Backup 116
- 10. Click the Add button 119
- Deleting a Scheduled Backup 120
- Restoring Backed-up Files 121
- Viewing the Backup Event Log 124
- Saving the Event Log 125
- 4. Click the Save button 126
- Clearing the Event Log 127
- Setting the Port 128
- Managing Share Folders 130
- Opening a Share Folder 131
- From the Main Window: 133
- Deleting a Share Folder 138
- On SmartNAVI 142
- On the Mac 142
- Connect button 143
- Making Management Settings 144
- Advanced Setup 145
- 8. Review your parameters 148
- Changing Network Settings 149
- Locating the SmartStor 151
- Wake-on-LAN 152
- Choosing a Default NAS System 153
- Enabling Event Notification 154
- Viewing the System Event Log 155
- Adding Application Plug-ins 156
- Open button 158
- 5. Click the OK button 158
- Viewing a List of Plug-ins 160
- Enabling Plug-ins 162
- Disabling Plug-ins 164
- Removing Plug-ins 165
- Rebooting the SmartStor 166
- 5. Click the OK button. (D) 167
- Shutting Down the SmartStor 168
- 5. Click the OK button. (D) 169
- Restarting the SmartStor 170
- Managing Downloads 171
- 5. Click the Add button 173
- Drag and Drop Files 174
- Batch Downloading Files 175
- Viewing the Download List 177
- Removing a Link 179
- Pausing a Download 180
- Resuming a Download 180
- Viewing the Downloaded List 181
- Opening a Downloaded File 182
- Deleting a Downloaded File 183
- 5. Click the Delete button 184
- Using Media Center 185
- Creating a Playlist 186
- Playing a Playlist 187
- Renaming a Playlist 187
- Deleting a Playlist 188
- Using the Panel 189
- Managing Photo Albums 191
- Optional: 193
- • Click the Confirm button 197
- Viewing an Album 199
- Editing an Album 202
- Deleting an Album 203
- The album is deleted 204
- Chapter 5: PASM 205
- PASM in SmartNAVI 206
- PASM in Bonjour 208
- Choosing a Language 210
- Navigating in PASM 210
- Logging out of PASM 211
- Managing Monitor and Wizard 212
- Setting Network Configuration 214
- Viewing File System 214
- • Used Capacity 215
- • RAID Status 215
- • Total Capacity 215
- • Free Capacity 215
- Managing Users and Groups 216
- field provided. (D) 217
- field provided. (E) 217
- Deleting a User 218
- Viewing a List of Groups 218
- Creating a Group 219
- Adding Members to a Group 219
- Removing Members from a Group 220
- Deleting a Group 221
- Viewing Quotas 221
- Setting Quotas 222
- Viewing a List of Protocols 224
- Setting up Windows Access 225
- See your 226
- Setting up UNIX/Linux Access 228
- Setting up File Sharing 229
- Setting up Mac Access 230
- Setting up FTP Access 232
- Setting up your Print Server 234
- Setting up your DLNA Server 235
- Enabling Application Plug-ins 236
- Viewing a List of Folders 238
- Adding a Folder 238
- Deleting a Folder 239
- Creating a RAID Volume 245
- Designating a Spare Drive 246
- Migrating a RAID Volume 246
- Deleting a RAID Volume 247
- icon to 248
- Viewing the iSCSI Status 250
- Creating the iSCSI Volume 252
- Modifying the iSCSI Volume 253
- Setting up a Snapshot Backup 255
- Scheduling a Snapshot Backup 255
- Recovering Snapshot Backups 256
- Setting up NAS Replication 258
- Enabling One Touch Backup 259
- Setting USB Backup 260
- Setting eSATA Backup 262
- Making Network Settings 264
- Working with Jumbo Frames 265
- Working with DDNS 266
- • DDNS (domain) name 267
- • User name 267
- • Password 267
- 6. Click the OK button 267
- Sending a Test Message 270
- Viewing the Email Alert List 271
- Upgrading the System Firmware 272
- Viewing UPS Status 275
- Setting up a UPS 275
- Setting up System Standby 276
- Power On/Off Automatically 278
- Managing the System 280
- Viewing System Information 285
- Viewing Enclosure Information 286
- Enabling the Smart Fan 287
- Media Center 288
- Configuration 291
- Download 293
- Create Playlist 297
- Playlist 298
- Web File Manager 299
- Database Server 300
- Web Server 300
- SmartNAVI 302
- FTP Upload 304
- Squeeze Center 305
- Introduction to RAID 307
- RAID 0 – Stripe 308
- RAID 1 – Mirror 309
- RAID 10 – Mirror / Stripe 311
- Choosing a RAID Level 312
- Spare Drive 313
- Automatic Rebuilding 314
- Partition and Format 314
- RAID Volume Migration 315
- Target Requirements 316
- Chapter 7: Troubleshooting 317
- Checking Disk Status LEDs 318
- Replacing a Failed Disk Drive 319
- Using the Recover Function 321
- Rebuilding the File System 322
- Responding to Events 324
- SmartStor Lockup 331
- Checking Your Email Inbox 333
- Chapter 8: Support 337
- Contacting Technical Support 341
- The Netherlands 342
- China – Beijing 343
- China – Shanghai 343
- Attn: Technical Support 343
- Limited Warranty 344
- Your Responsibilities 345
- Returning Product For Repair 346
- Appendix A: Maintenance 349
- Hard Booting the SmartStor 350
- Replacing the Power Supply 352
- Installing the Power Supply 353
- Replacing the Cooling Fan 354
- Installing the Cooling Fan 355
- Replacing the Battery 356
- Installing the Battery 358
- GNU General Public License 361
- Battery 361
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