300
Figure 4-193
4.9.9
RAID Manager
RAID (redundant array of independent disks) is a data storage virtualization technology that combines
multiple physical HDD components into a single logical unit for the purposes of data redundancy,
performance improvement, or both.
Note
RAID function is for some series product only. Slight difference may be found on the user interface.
Right now, NVR supports RAID0, RAID1, RAID5, RAID6, and RAID 10. Local hotspare supports
RAID1, RAID5, RAID6, and RAID10.
Refer to the following table for detailed information.
RAID Type
HDD Amount
RAID0
At least 2 HDDs.
RAID1
Only 2 HDDs.
RAID5
At least 3 HDDs. Usually recommend the RAID5 consists of 4 to 6 HDDs.
RAID6
At least 4 HDDs.
RAID10
At least 4 HDDs.
4.9.9.1 RAID Config
It is for you to manage RAID HDD. It can display RAID name, type, free space, total space, status and etc.
Here you can add/delete RAID HDD.
Click Add button to select RAID type and then select HDDs, click OK button to add. See Figure 4-194.
Summary of Contents for NVR21-S2 SERIES
Page 1: ...Dahua Network Video Recorder User s Manual V 4 3 0...
Page 138: ...124 Figure 3 5 3 6 6 NVR42N Series Please refer to Figure 3 6 for connection sample Figure 3 6...
Page 142: ...128 Figure 3 11 3 6 12 NVR42V 8P Series Please refer to Figure 3 12 for connection sample...
Page 143: ...129 Figure 3 12...
Page 157: ...143 Figure 4 15 Step 2 Click device display edit interface See Figure 4 16...
Page 220: ...206 Figure 4 93 Figure 4 94...
Page 240: ...226 Figure 4 110 Figure 4 111 Figure 4 112...
Page 251: ...237 Figure 4 123 Figure 4 124...
Page 253: ...239 Figure 4 126 Click draw button to draw the zone See Figure 4 127...
Page 257: ...243 Figure 4 130 Click Draw button to draw a zone See Figure 4 131 Figure 4 131...
Page 262: ...248 Figure 4 136 Click draw button to draw the zone See Figure 4 137...
Page 275: ...261 Figure 4 148 Figure 4 149...
Page 276: ...262 Figure 4 150 Figure 4 151...
Page 387: ...373 Figure 5 60 Figure 5 61...
Page 388: ...374 Figure 5 62 Figure 5 63...
Page 412: ...398 Figure 5 96 Figure 5 97...
