Dahua NVR41 series

User's Manual
XII
4.13.3 Disk Manager
................................................................................................................... 329
4.13.4 Record Control
................................................................................................................ 330
4.13.5 Disk Group
....................................................................................................................... 330
4.13.6 Disk Quota
....................................................................................................................... 331
4.13.7 Disk Check
....................................................................................................................... 332
4.13.7.1 Manual Check
.......................................................................................................... 332
4.13.7.2 Detect Report
.......................................................................................................... 333
4.13.8 RAID
................................................................................................................................. 335
4.13.8.1 Creating Manager
................................................................................................... 336
4.13.8.2 Raid Info
.................................................................................................................. 338
4.13.8.3 Hot Spare Disk
........................................................................................................ 338
4.13.9 Record Estimate
.............................................................................................................. 339
4.13.9.1 Calculating Recording Time
.................................................................................. 341
4.13.9.2 Calculating HDD Capacity for Storage
................................................................. 341
4.13.10 FTP
................................................................................................................................. 342
4.14 System
...................................................................................................................................... 344
4.14.1 General
............................................................................................................................. 344
4.14.2 RS232
............................................................................................................................... 344
4.15 Security
.................................................................................................................................... 345
4.15.1 Security Status
................................................................................................................ 345
4.15.2 System Service
............................................................................................................... 347
4.15.2.1 Basic Services
........................................................................................................ 347
4.15.2.2 802.1x
....................................................................................................................... 349
4.15.2.3 HTTPS
...................................................................................................................... 350
4.15.3 Attack Defense
................................................................................................................ 350
4.15.3.1 Firewall
.................................................................................................................... 350
4.15.3.2 Account Lockout
.................................................................................................... 352
4.15.3.3 Anti-Dos Attack
....................................................................................................... 352
4.15.3.4 Sync Time-Whitelist
............................................................................................... 353
4.15.4 CA Certificate
.................................................................................................................. 354
4.15.4.1 Device Certificate
................................................................................................... 354
4.15.4.2 Trusted CA Certificate
............................................................................................ 356
4.15.5 Audio/Video Encryption
................................................................................................. 356
4.15.6 Security Warning
............................................................................................................ 358
4.15.6.1 Security Exception
................................................................................................. 358
4.15.6.2 Illegal Login
............................................................................................................. 359
4.16 Account
.................................................................................................................................... 360
4.16.1 User
.................................................................................................................................. 360
4.16.1.1 Add User
.................................................................................................................. 360