Quote Originally Posted by roberto_novelli
Hi Richard.
at start next week i will start test with DECKLINK HD ESTREME and
5 HD's EXTERNAL RAID to storage HD image.
I need to capture live too,on CATV4 in HD mode.
Can you give me some suggestion or i can start test without
special configuration???
I speak about CAT conf. not not video card conf.
I let you know.
thanks.
Noone has tested or used HD input in catalyst.

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anything with HD playback - needs thoroughly testing- by you - before you go anywhere near any site.
There are only a very few things that work.

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i do not and cannot test configurations of multiple disc systems - there are just too many different types.
And in general i would only ever suggest 2 things work - XServe RAID ( agressive caching ), and single fast 15000rpm scsi discs.

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Everything else is up to you to - and dont expect miracles.

almost all of these discs systems work very very badly with random access files. meaning they dont work better than a single disc.

http://www.barefeats.com/quad07.html


The remaining performance issue is slow small random read speeds for one, two, three or four drives. No matter how many drives you configure in RAID 0 sets, the average random read speed for combined block sizes from 64K to 1024K is less than 30MB/s!