4.4. Recording Capacities
Disk Storage
The maximum internal disk storage available on SAS disks, is as follows:
• 6 (5+1) x 300 GB SAS disks
Raid Level: 3
The Video Raid uses striping process across 5 or 6 disk drives. The video and audio data
is striped over the first 4 or 5 drives while the parity information is saved on the fifth or
sixth drive.
If one drive is damaged, the Video Raid can use the parity information to recover the
missing information, so that operation can continue seamlessly without bandwidth loss.
Recording Capacity Figures
The following table shows the recording capacity, in hours:
• for a SAS (5+1) disks raid configuration in 50Hz and 59.94 Hz
• for 1 record channel, that is 1 video + 4 stereo audio tracks in SD; 1 video + 8 stereo
audio tracks in HD
• in DVCPro 50 and DVCPro HD
• with the Operational Disk Size parameter set to 100%.
#
Disks
Disks size
(GB)
# Usable
disks
Capacity
(GB)
DVCPro 50
(50Mbps)
(hours)
DVCPro HD
(100Mbps)
(hours)
5 300 4 1200 48 23
6 300 5 1500 60 29
XTnano Server- Version 11.01- Hardware Technical Reference Manual
4. Software Specifications 15