Needed: Setting Up RAID For iMac 5K For Video Editing

[Rainer Wirth]

the speed with R6 or 8 is roughly the same.
In real you’ll get around 800 MB/s Datarate. You’ll loose 1 disc of capacity for Raid5 two discs for Raid6.

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems

[Ray Sherman]

Thanks for the info….. My final determination on either one will depend on a couple things;
1) How much original media can be imported from my external storage drives into the RAID drives for 4k editing?
2)Would the RAID read/write speed reduce with the more media that is introduced into the RAID drives?
Thanks again for all your help and input. Ray

[Rainer Wirth]

1. I don’t know how much space you need.
2. no loss of read/write speed even when the raid is filled up.
Leave a little headroom of free space (around 10% of the whole capacity.
A loss of read/write speed occurs mainly with eSata connections.

cheers

rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems

[David Roth weiss]

RAID arrays do loose throughput as they fill up, it’s the nature of disk storage. There are some schemes, such as the one advertised by Facilis, which intentionally fragment data evenly across inner and outer portions of the disks, but that’s pretty much a marketing gimmick. Leaving 10 to 20% free space is advised by most manufacturers.

David Roth Weiss
Director/Editor/Colorist
David Weiss Productions

David is a Creative COW contributing editor and a forum host of the Apple Final Cut Pro forum.

[Ray Sherman]

Hi,
Thanks for the info….Ray