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10-3
Appendix
Hard Disk
Lifetime of Hard Disk
A hard disk is a storage device that works physically, and has a limited lifetime. It is a kind of consumables. It is
said that the average lifetime of a RAID system composed of SCSI hard disks is three years. However, this
lifetime is considered to be true for standard file servers or business servers. The disk failure rate of VK-64/
VK-16 systems is higher than that of general file servers. It is reasonable to assume that the lifetime of hard
disks in a VK-64/VK-16 system is about half of that of a standard file server (one and a half years).
Therefore, when you build a VK-64/VK-16 system, it is advisable to provide a hot-spare (spare hard disks that
are active) for RAID configuration.
RAID Reconfiguration
If one of hard disks in RAID1 and RAID5 systems breaks down, you can restore the system by replacing the
broken hard disk before other disks break.
Restoring the data stored on the broken hard disk after replacement is referred to as rebuilding.
During RAID rebuilding, a recording error may occur because disk system performance deteriorates.
RAID Rebuilding Time
When a failure occurs in a hard disk in a RAID system and you want to replace it with a hot-spare or new one,
the rebuilding time is to be considered as follows:
• Rebuilding takes about one minute per 1GB when no I/O is performed in a SCSI RAID card.
• When a RAID system is composed of four SCSI hard disks of 300GB each, the total disk size of the
hard disks is 1200GB. To rebuild this system, 1200 minutes (20 hours) are required on the condition
that there no I/O is performed.
• If rebuilding takes 20 hours when there is no I/O, the rebuilding time for a VK-64/VK-16 system where
I/O is continuously performed can be assumed to be about 20 x 2 hours. Thus, when you perform
rebuilding without stopping recording, it takes about 40 hours.
• There is no problem if rebuilding only takes a long time. However, the other hard disks may break
down one after another during such rebuilding. If another hard disk breaks down during rebuilding,
all of the stored data will be lost. Therefore, it is preferable to reduce rebuilding time as far as
possible.
- VK-64/VK-16 1
- Administrator’s Manual 1
- Introduction 2
- Icons Used in this Manual 3
- Open Source Software 3
- Purpose of This Manual 4
- Contents 5
- Chapter 5 Viewer Reference 8
- Chapter 7 Backup Scheme 10
- Chapter 8 System Maintenance 10
- Chapter 9 Troubleshooting 11
- Chapter 10 Appendix 11
- About Manuals 12
- System Overview 15
- Preparation Flow 18
- System Operation Overview 20
- Network Video Recorder VK-16 21
- Playback 22
- Storage Server 23
- Operating Environment 24
- Notes on Use with Windows XP 26
- Windows Server 2008 29
- Upgrade your PC 30
- Shadow backup 30
- System Design Concept 31
- When using Viewer alone 33
- Server Sizing Concept 34
- Required Hard Disk Capacity 35
- Storage Server Performance 39
- Notes on Viewer Sizing 40
- Network Bandwidth Concept 41
- Installation 45
- Installation Procedures 47
- Preparation and Precaution 51
- Configuration Reference 53
- How to Start-Up 55
- Screen Configuration 56
- [Events] Tab 57
- [Event Notification] Tab 58
- [User Management] Tab 59
- Set the [Settings] Tab 60
- How to set the [Settings] Tab 61
- Select [Disk Drive Settings] 63
- Change the [Logon settings] 66
- [Logon As Service] Privilege 67
- Disk Space Management Level 69
- Handling at Each Level 69
- In case of Threshold Level 70
- In case of Limit Level 70
- Set [Events] Tab 73
- How to Set the Events Tab 74
- Set [User Management] Tab 77
- Change User to Administrator 78
- Delete a User 79
- Set Recording Schedule 81
- Preferences] Screen 83
- How to Start VK-Lite 84
- Other Functions in Both Tabs 89
- Location and Zone 90
- Add a Location and Zone 92
- Edit a Location and Zone 93
- Delete a Location and Zone 93
- Add Storage Server 94
- Edit Storage Server 95
- Delete Storage Server 96
- Add the Camera Server 98
- Connect to Camera 99
- Select a Storage Server 100
- Assign a location and zone 101
- Register Camera Server 102
- Edit Camera Server 104
- Save Edit Contents 105
- Finish Editing 105
- Delete Camera Server 106
- Recording Schedule 108
- Set Normal Schedule 111
- Create Normal Schedule 112
- Set the recording period 113
- Set Continuous Recording 114
- Configure Audio Recording 115
- Set Additional Options 118
- Set External Device Output 119
- Finish Setting 119
- Save Schedules 120
- Change Camera Server Settings 121
- User Name and Password 122
- Motion detection recording 122
- Image/Video Quality 122
- Camera Name 122
- Restrict Service Time 123
- External Device 123
- Batch-Setting Schedules 124
- Set the [Sensitivity] 130
- Set the [Area Ratio] 130
- Set Sensor Event Recording 133
- Set Preset Tour 138
- Test the Preset Tour 139
- Change the Preset Settings 139
- Change the Preset Order 140
- Delete a Preset 140
- Set a Special Day Schedule 142
- [Add Schedule Type] 143
- Edit a Schedule Type 144
- Delete a Schedule Type 144
- Add and Delete a Day 145
- Delete a Day 146
- Save Changes 147
- Viewer Reference 151
- Chapter Overview 152
- Viewer Operation Flow 154
- Start the Viewer 156
- Use Viewer only 158
- Viewing Screen 159
- Viewer Start-up Window 160
- Viewer Start-up Option 161
- Menu Bar of Viewer Screen 162
- Viewer Setting 163
- Set the Tab for Administrator 164
- Set Event Notifications 165
- Set the Tab for Guest User 166
- Focus Operation Setting 167
- Proxy Server Setting 167
- Save Viewer Settings 168
- Arrange and Save Layouts 169
- Create a new folder 171
- Move an entry up or down 171
- Arrange Layout Sequences 173
- Layout Grids 174
- Alignment Grid 175
- Small, Medium and Large Grids 176
- Custom Grid 178
- Set a custom grid 178
- Hide and Show Task Areas 179
- Basic Video Window Functions 180
- Locations and the Zones 181
- Re-size a Video Window 183
- Move a Video Window 183
- Operation Guide 184
- Arrange Video Windows 185
- Video Window Status 186
- Light Green 187
- Dark Green 187
- Pan, Tilt, Zoom Control 188
- White Balance Control Items 191
- Smart Shade Control 192
- Other items 192
- Other Video Window Functions 193
- Other Menu Options 196
- Viewer Shade Control 197
- Audio Panel 197
- Use Timeline and View Events 198
- Use the Playback Controls 200
- Jump to time entered 201
- Skipped Time 204
- Duplicated Time 204
- Return to Live Video 205
- View and Search Events 206
- Acknowledge and View Events 207
- Search Events 208
- Click [Event Search] 208
- Step 6: Select a Priority 210
- Step 7: Click [Search] 210
- When motion 211
- Operation and 213
- Management 213
- Arrangement and Sensitivity) 218
- Backup Scheme 221
- Preparation 224
- Files to Make a Backup 225
- Audio data 226
- Event data 227
- Configuration files 227
- Backup for Data Protection 228
- Restoration Procedure 231
- Examples 233
- Data Protection) 234
- System Maintenance 235
- Upgrade VK-64/VK-16 237
- Version upgrade from VK-Lite 238
- Reinstall VK-64/VK-16 239
- Required Media and Data 240
- Camera Server Maintenance 241
- Troubleshooting 243
- Troubleshooting for Recording 245
- VK Troubleshooting 246
- Timeline 248
- Extract Video 249
- Scheduling and Recording 249
- VB-C500VD 250
- VB-C500D 250
- Upgrade Problems 251
- Messages List 252
- Access Engine Log 271
- VK-64/VK-16 Viewer Logs 272
- Log Storage Destination 272
- Error Codes in Log File 273
- SMTP Error Codes 274
- HTTP Error Codes 274
- Wininet Error Codes 275
- VK Event Information 276
- Appendix 279
- Camera Server Control 280
- Hard Disk 281
- How To Check Software Version 283
- Live Viewing 284
- Video Recording 284
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