EVS XS - Raid Level: 3

Issue
10.03.B
XS Series DISK RECORDER
–
Version 10.03
- Hardware Technical Reference
EVS Broadcast Equipment SA
–
March 2010
22
120Mbps (PAL)
• 4.6 x faster than real time on a single transfers with Avid DNxHD® or Apple
ProRes 422 at 120Mbps (PAL)
• 4.8 simultaneous real time transfers with Avid DNxHD® or Apple ProRes 422 at
145Mbps (NTSC)
• 3.8 x faster than real time on a single transfers with Avid DNxHD® or Apple
ProRes 422 at 145Mbps (NTSC)
RESTORE
Maximum transfer speeds through the Gigabit ports of the XS server :
• 6 simultaneous real time transfers with Avid DNxHD® 85Mbps
• 4x faster than real time on a single transfers with Avid DNxHD® 85Mbps
• 5.7 simultaneous real time transfers with Avid DNxHD® 100Mbps
• 3.4 x faster than real time on a single transfers with Avid DNxHD® 100Mbps
• 5 simultaneous real time transfers with Avid DNxHD® or Apple ProRes 422 at
120Mbps (PAL)
• 3 x faster than real time on a single transfers with Avid DNxHD® or Apple
ProRes 422 at 120Mbps (PAL)
• 4.1 simultaneous real time transfers with Avid DNxHD® or Apple ProRes 422 at
145Mbps (NTSC)
• 2.5 x faster than real time on a single transfers with Avid DNxHD® or Apple
ProRes 422 at 145Mbps (NTSC)
SIMULTANEOUS BACKUP AND RESTORE
The backup sessions reach higher bandwidth and pre-empt the bandwidth against
the restore sessions. On a ‘per session’ based, the system allocates between 3.75
and 6 times more bandwidth to backup session than to restore session.
1.7.8 RAID LEVEL: 3
The Video Raid uses striping process across 5 SCSI disk drives or across 5 or 6
SAS disk drives. With SCSI disks, the video and audio data is striped over the first
4 drives while the parity information is saved on the fifth drive. With SAS disks,
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.
For more information on online rebuild, refer to the section dedicated to this
subject in the XS Software Technical Reference manual.