> For video data, use a linear stripe across two controllers. And at least
> three controllers
> for HD video. But HD video requires SCSI or SAS, stripped across multiple
> controllers and
> 15Krpm drives in the arrays.
I should be a bit more detailed. For -
Uncompressed SD video - 60 MB/s sustained. 3 to 4 IDE drives striped
will do.
Uncompressed HD video, up to 1080i - 270 MB/s sustained - 3 disk
controllers,
3 disk arrays, 15 Krpm drives.
Uncompressed HD video 1080p or 4:4:4:4 or dual-link - 360 MB/s
sustained - 4
disk controllers, 4 disk arrays, 15 Krpm drives.
Compressed SD video - mpeg2, 480P, DVpro - 20 MB/s sustained - 1 disk
controller,
7200 rpm drives, single array. 2 streams requires Uncompressed
SD bandwidth.
Bob
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