OT: RAID 0 - anyone doing it?

ArmyVideo wrote on 1/17/2004, 7:19 AM
I've been considering different configurations for my system, and have been reading good things about RAID arrays. I'm thinking of building a RAID 0 array consisting of (2) 200 or 250 GB drives (ATA, 7,200rpm) and housing them in a seperate cabinet in my rack with a dedicated power supply to cut down on system stress / heat. ( and hey.. a rack full of glowing lights certainly looks nice)
Has anyone else done something similar, or is simply using a RAID set-up now? Have you noticed a large enough performance (transfer / preview) increase to have made it worth your while? An ATA raid controller is under $60, and I'm going to get the drives either way, so it's not a matter of cost, just practicality.
As a sidebar, if I were to install an array, and then later built a new system, could I transfer the controller and drives to the new system intact, or would I have to restripe and lose the data?
Thanks in advance.
Brian

Comments

BillyBoy wrote on 1/17/2004, 7:43 AM
I wouldn't. Been there done that... years ago. RAID is good for web servers, stuff like that. For a single person doing video editing, like killing ants with a sledgehammer.

Just for a point of reference I have TWICE as much storage simply as IDE internals, plus unlimited more using drawers. It all runs off a 133 IDE controller card and the built-in 133 IDE controller that' part of the MO. That eight devices all easily and happly getting along together without and RAID setup.

OH... I have a RAID MB. Tried it. Disabled it the first day.
JJKizak wrote on 1/17/2004, 8:25 AM
I did it the easy way, bought a SCSI medea 160 gig. It will pass 18megs per second and maybe more like 30 megs. Good for doing high definition or MJEPG not needed for Digital firewire capturing as you only need a 7200 rpm IDE DMA 5 drive to capture 3.43 megs per sec.
The Medea sucks up the high definition data stream tp file from the MY-HD capture card without any hiccups.

JJK
zemote wrote on 1/17/2004, 9:05 AM
Technically you don't need a raid card to do raid in Windows XP. If you go to disk management utility by creating dynamic disks. Your not limited to raid 0 either, you could do raid 1 which is drive mirroring or raid 5 which is a fault-tolerant volume with data and parity striped intermittently across three or more physical disks. REDUNDANCY is good!!! If one of your drives crashes you still have your data, put in a replacement and wallah your raid will rebuild itself. You can have all this with out buying any extra hardware provided you have the ide controllers on your MB. Just look for a search in Windows help for "dynamic disks" Another way of saying raid 0 is striping your disk as that term is also used.

-zemote
ArmyVideo wrote on 1/17/2004, 10:15 AM
Thanks for the input folks. Since I will doing 90% firewire import, I would have to agree with BillyBoy that setting a raid system would be akin to the sledgehammer / fly analogy.
So, I will proceed with my standard IDE drive upgrades, which leads me to a new question... is it posible to extend IDE cables? I ask because my PC case is getting a little crowded, and I would like to move my video HD's to a seperate case, with a seperate power supply (as mentioned in the original post). Eventually I will be moving my entire rack into a cooled closet away from my consle to cut noise. The only issue that will bring is monitor cables, which I will (dangerously?) assume can be extednded via a quick stop at CompUSA or similar retailer.

Thanks again for the help.


JJKizak wrote on 1/17/2004, 10:22 AM
The monitor cables are no problem at all (250ft) . The IDE cables I don't know. Might have to go with a 1 gig network to each unit.

JJK
CrazyRussian wrote on 1/17/2004, 9:20 PM
"So, I will proceed with my standard IDE drive upgrades" - VERY WISE DECISION. RAID for overkill, espcialy not fault tolerent, end EVEN MORE not Software RAID.
Jsnkc wrote on 1/17/2004, 9:38 PM
I use Raid 0 on 2 diffrent machines and I love it, never had any problems.
kevgl wrote on 1/17/2004, 11:02 PM
I'm with Jsnkc

I've got two Raid0s at home and 3 Raid0s at Blue Rocket. (4 are 2x200+ Gig IDE and one is 3x70 SCSI).

Haven't had a glitch with them. They are fast. Yes - maybe it is overkill at the moment, but I don't lose any space by having them running and it gives me headroom to do other things while an app is running.

As for losing data, I haven't lost any yet, one of the Raids works 24/7 and has been running for 3 years now. Vital project data is backed up daily (as opposed to AVIs or rendered images which can always be rebuilt from project data) onto either removable USB IDEs or a separate smaller IDE. But in 10 years I have never lost data from drive failure.

I set a scheduled task to run every night that runs a little batch file containing variations of this:
xcopy d:\projects\*.* h:\D-drive-backup /e /y /d

I'm all for Raids ...

My 3 cents worth (they are Australian cents and aren't worth as much :-)

Cheers
farss wrote on 1/18/2004, 4:24 AM
Another Aussie's 2 cents worth, I had my mobo raid 0 system die twice on me, ditched it, still using the same drive without hiccup.
Also unless you're using a SCSI RAID controller or one with it's own smarts it can be working against you, a lot of the RAID processing is done in the CPU, sure the raw disk I/O is faster but at the expense of CPU throughput so for rendering you might be going backwards.
RichMacDonald wrote on 1/18/2004, 8:41 AM
I've just put a new system together. I started with a 160GB SATA Seagate ($120 online) for editting and attempted to reuse my maxtor 40GB 5400 rpm for the OS. The Maxtor was so slow and noisy it drove me crazy. I hadn't done installing half my programs and Win2K was already acting like a POS...ruining all the performance. Then CompUsa offered the same Seagate for $99. So I bit and go a 2nd one, switching to a RAID 0. The computer now runs like a rocket. I did have to switch to WinXp, since win2K doesn't support RAID 0 with SATA.

I have yet to try a video capture, so I don't yet know if i'm going to be burned with a "single drive" for both OS and capture. I'm also worried about heat, since I'm placing both drives together inside the case and I'm under-fanned...the drives get hot to the touch when they're really running for a long time, e.g., even for something as a simple full-system virus check.

Long and short, I'm as yet unable to give you useful feedback for video editting. But for overall performance, it makes a "huge" difference. I'd rather buy a 3rd drive for capture if I have problems. I'm never switching back. Of course you could buy a super-fast drive for your OS, but how can you knock a system that keeps all your storage and doubles your performance (RAID 0).

Note that I'm using the motherboard-supported RAID. $60 for an ATA raid controller is rather expensive, given that the newest motherboards are not much more than that.

Additional: I was unable to create a RAID 0 SATA using the Southbridge. Some kind of error installing the driver. I had to use the Promise controller instead. But all the latest motherboards support both.

As for switching your RAID to another system, I *believe* it is possible to install new drivers without restriping. But until I've done myself, I'm not going to say 100% certain :-/
rettop wrote on 1/18/2004, 10:36 AM
Not using a RAID setup here, but my vote goes to SATA as well. Running WinXP Home with a total of 3 HDs, one older 23GB IDE drive and two SATA drives, total about 250GB storage space. Works for me.

SATA's faster, plus you get the bonus of better cooling, since cables are tiny compared to IDE cabling (meaning, less obstruction to air flow).

When I first put my current system together, I had frequent overheating with my 3.2 Ghz cpu. Went to a larger case and the problems disappeared. Bigger cases make a major difference in moving air through. I have a total of 5 fans now, but the increased case size figured into the solution nearly as much as more fans, IMO.