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Raid-5 for editing and compositing?
Hi guys,
continuing my quest to bulid a window based machine for editing and compositing.
I’ll be editing uncompressed targa\quicktime 1920×1080, although I won’t do any capturing, since I work with cgi and digital camera still sequences as my source.
Everywhere I search, it seems Raid-0 for video drives is the prefferd way to go. However, if I use 2x250GB drive in Raid-0, I’ll need another 500GB for backup…
– I was wondering if Raid-5 could still give me an adequate performance boost, or am I better of sticking to no raid at all unless I go with Raid-0.
– Also, is the onboard Intel ICH7R raid controller good enough for Raid-5 or would I need to add an intelligent hardware based raid controller?
– Finally, I’m wondering if I need Raid at all if I’m only editing\compositing\photoshopping, and not doing any HD capturing on this machine?many thanks,
Jon -
5 Replies
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I’m running 4 160gb in a raid 5 on the intel raid controler that you mentioned. They are hitachi drives that are sata II. The setup will write at about 40 mb/sec (which isn’t great at all), but it reads at 160mb/sec (which is really good compared to a single drive). I’d use perpendicular drives do to their increased performance. It is worth it to use raid 5 if you care about having a really “safe” place to put your data. I have a raid 0 setup that I use for capturing and for other high speed writing needs. Then I just transfer it to the raid 5 if it merits it.
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Thanks Steve,
Since mt budget won’t allow at this time for both raid-0 and raid-5 setups, I am trying to figure out if it is a good solution to use 3 drives in raid-5 as my only video drive. But it seems to me as if you use your raid-5 setup just for archiving\backup, no? -
I use a RAID 5 array as my media drive. It consists of 4 SATA 200GB drives which gives me 600GB of usable space. I also have a spare drive in the array so if one drive fails I simply hit the rebuild button and several hours later(or more depending on how full the drives are)everything is up and running with no data loss.And I have had to use this feature once and was extremely happy I had it.
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I’m not doing 1080i, but I can almost do 1 stream of 720P if I turn everything off, which of course isn’t do-able…
Presently using a 6 drive raid 5, but my PCI buss is the limiting factor.
I’m fairly confidant that 720P will be do-able with a new extreme computer, and PCIEx8 raid controller card.Looking for 1939 Indian Motocycle
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Hi.
I use 4 120gb drives in raid 10 and it feels also safe.
Why i use raid 10 is that it was faster on my testing.
About 80 megs for writing and 110 for reading.
And in theory it will not need rebuilding if one drive fails.
For me down time is expencive.So there is 2×120 drives mirored and then raid stripes them.
I also make copys of all my stuff to external drive every night.
As raid card manuals say if raid fails use your back up :)!Downside is for that solution a bit more expencive.
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Margus
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