|
|||||||||
|
Thread Tools | Search this Thread |
December 3rd, 2008, 12:04 AM | #1 |
Major Player
Join Date: Aug 2007
Location: Sydney Australia
Posts: 358
|
Raid 0 for Pro res
HI Everyone
I am in the process of upgrading my macpro i would like to capture my HDV footage to pro res what i would like to do is raid 0 my 3 x1TB HDD's and also purchase a apple raid card From my research this seems to be the safest and fastest way and i would like to add a decklink intensity card pro card Is this efficient for HDV workflow or do some of you have different methods Rob |
December 3rd, 2008, 01:43 AM | #2 |
Regular Crew
Join Date: Sep 2007
Location: Kansas City, MO
Posts: 128
|
I dont think you need RAID 0 to do Pro Res.
I'm on a Macbook Pro 2.5ghz and I can capture an entire Mini-DV tape and average between 1-2% lag on the encoding. That's with a single, non RAID, 7.2k RPM drive. Raid 0 just means if one of your multiple drives fails then you loose your data. Unless I'm missing something I would say there is no need for a RAID 0 here. |
December 3rd, 2008, 05:02 AM | #3 |
Regular Crew
Join Date: Oct 2006
Location: Brighton
Posts: 92
|
RAID 0 (striped disks) distributes data across several disks in a way that gives improved speed and full capacity, but all data on all disks will be lost if any one disk fails.
(from wikipedia) I have this set up on my mac pro with 2x 500gb 7,200rpm drives. Captures hdv as pro res with no problems and I dont have any raid hardware. I just set it up using Disk Utility as soon as i got my new mac. You might want to find out if it will be a problem having data on your drives already though. If you go down this route erhaps you could spend the money you save on the raid card on buying duplicate hard drives and setting up mirroring aswell as striping. Best of luck! ProRes is lovely. Stick |
December 3rd, 2008, 10:39 AM | #4 |
Major Player
Join Date: May 2006
Location: Toronto ON Canada
Posts: 731
|
As others have pointed out, RAID 0 has risk of losing everything if one drive goes south. If you're workflow is HDV -> ProRes, perhaps you should consider an AJA card, which have ProRes in hardware, which would give an edge over Decklink in this case.
__________________
Mike Barber "I'm laughing to stop myself from screaming." |
December 3rd, 2008, 02:23 PM | #5 |
Major Player
Join Date: Aug 2007
Location: Sydney Australia
Posts: 358
|
From my understanding if i have the raid card and i loose a drive all i need to do is replace that drive and it will repair itself.
Raiding 2 drives within the mac you dont need a raid card that i understand which means if you loose a drive your stuffed. But i have a rule i always backup any project i have just digitized to an external and i always update my fcp file while i am working |
December 3rd, 2008, 02:27 PM | #6 | |
Major Player
Join Date: Aug 2007
Location: Sydney Australia
Posts: 358
|
Quote:
I am sure you can capture to prorez through the decklink intensity or extreme card. The Aja cards are alot more expensive which card would you recommend Rob. |
|
December 3rd, 2008, 02:39 PM | #7 | |
Major Player
Join Date: May 2006
Location: Toronto ON Canada
Posts: 731
|
Quote:
You never want to use a RAID as a system disk. Using other internal drives as a RAID 0 is no more risky of data loss than using external disks in RAID 0 config. It is the level, not the location, which factors into things.
__________________
Mike Barber "I'm laughing to stop myself from screaming." |
|
December 3rd, 2008, 02:51 PM | #8 | |
Major Player
Join Date: May 2006
Location: Toronto ON Canada
Posts: 731
|
Quote:
I do realise the AJA are a bit more expensive, but it may or may not be worth the extra little investment -- that's for you to decide.
__________________
Mike Barber "I'm laughing to stop myself from screaming." |
|
December 3rd, 2008, 03:29 PM | #9 | |
Major Player
Join Date: Aug 2007
Location: Sydney Australia
Posts: 358
|
Quote:
none more question does it matter how many drives i have raided will the drives run faster if i have more drives raided together. And i think i would like to raid 2 1TB drives just so i dont have to purchase a raid card will this do working in Prorez Rob |
|
December 3rd, 2008, 03:35 PM | #10 |
Major Player
Join Date: May 2006
Location: Toronto ON Canada
Posts: 731
|
AFAIK, more drives only equals more space, not more speed. Make sure the drives are all the same size and same speed (you should be using 7200 rpm drives). I expect you'll be ok.
__________________
Mike Barber "I'm laughing to stop myself from screaming." |
December 4th, 2008, 12:30 AM | #11 |
Major Player
Join Date: Aug 2007
Location: Sydney Australia
Posts: 358
|
do i need a APPLE Mac Pro RAID Card Kit if i want to raid 0 3 drives
Rob |
| ||||||
|
|