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RAID 0 Internal Drives a good idea?Posted by JoeE
I'm still figuring out the setup for a feature I'm starting in October. I'm going to need 3 tb of storage, just to be safe. We are going to be capturing DVCPROHD 720p and I was thinking of just buying cpu with 3 1TB media drives from Apple (we'll have at least 15TB of dailies and I like to have extra room) rather than external esata or fw drives. We'll be working with duplicate systems (my assistant will capture on his system and copy to mine) so we can go RAID 0 without any worry about lost data. Does this seem like a good solution?
The only bad idea is:
Get you HDDs from another supplier - google shopping will throw up the best deals usually. Look at the new Samsung Spinpoint F1 1TB HDDs - they are my new favourites. They are also cheaper, faster, generate less heat and quieter than the other 1TB HDDs I have! This I have read is due to manufacturing a 1TB on 3 Disc platters rather than 4 in other 1TB HDDs. I'm running 8 in a RAID 5 (Plus 1 spare making 9) and 2 internally on my MacPro. For instant answers to more than one hundred common FCP questions, check out the LAFCPUG FAQ Wiki here : [www.lafcpug.org]
I had "one of those days". Lost 168 gigs on a sneakernet RAID once upon a time. RAID "0" terrifies me now. No thank you very much.
...and no protection...unless you are Time Machining overnight every night. When life gives you dilemmas...make dilemmanade.
I dunno, I guess I'm just not that averse to striped framestores because I grew up in the days of Stone+Wire. It was nominally a RAID filesystem ? software RAID 3, maybe? ? that supported all the normal stuff, like hot spares and automatic rebuilds. But you were far more likely, in those days, to suffer data loss due to a framestore corruption or some kind of software fault than you were to a lost drive. I've gotten into the habit of never trusting any storage system, no matter how fancy-schmancy. Everything important (like project files) gets backed up. Everything that can be re-didged from tape just isn't worth stressing over, because it'll have to get re-didged from tape sooner or later anyway.
Exactly. RAID "0" is flying by the seat of your pants until you run out of gas...and there's no reserve tank. I hear you Jeff...in those days, mass production of drives wasn't as prevalent. There are many more failures today just from the odds created by the massive number of drives in the industry. Drives WILL FAIL...it's WHEN, not IF. The better companies (Seagate / Hitachi) have had smaller incidences in my experience which is why I use / recommend those 2 companies. When life gives you dilemmas...make dilemmanade.
>RAID "0" is flying by the seat of your pants until you run out of gas...and there's no
>reserve tank. My point too. RAID 1s on portables drives that you may use someday for editing/storing footage, RAID 5s or combination RAIDs for everything else. And back up when you can, where you can. www.strypesinpost.com
>I have lost 2 drives at once on a RAID 5 (Ultra320 SCSI 5-drive array) and I was able to
>get it all back via rebuild. I won't bet on it being able to happen all the the time, but yea, that's security of RAIDs for ya. Get good quality drives, RAID them and regular back ups to data tape and you'll never worry about losing stuff. Larry Jordan's newsletter this month talks about the dangers of archiving to hard disks, the rate of magnetic fading on the drives.. Pretty good read up, and why you should always have multiple copies. [www.larryjordan.biz] www.strypesinpost.com
The RAID drives must be of the same size, and speed for them to be RAIDed. Usually they come from the same manufacturer.
Hmm... Haven't tried this myself, but can the OS/FCP be installed on a RAID? www.strypesinpost.com
Not trying to RAID the three internal drives, just could a MacPro be configured in this way?
On a MacPro: Could the OS & FCS2 be on internal drive #1, the captured DVCPRO HD 720p & edited footage on drive #2, and the backed-up edited footage on drive #3? (a sort of "manual" RAID 1 for the edited footage). Jack
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