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RAID0 with a 1TB and 2TB HDD ?? WD Caviar black

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October 13, 2013 3:38:24 PM

I already have a 1Tb caviar black HDD and I was wondering.... If I bought a 2Tb caviar black could I go RAID0 with the 1Tb one with no problems or drawbacks?
a c 542 G Storage
October 13, 2013 3:55:23 PM

A RAID-0 array's total capacity is based upon the drive in the array with the smallest capacity.
So if you RAID-0 a 1TB drive and a 2TB drive then your array's total capacity will be 2TB (1 x 2).
October 13, 2013 4:14:14 PM

Well that kinda sucks :p  I guess I'll get another 1tb drive then.

Another question....

If I add a third caviar black to the array will my sequential speed still go up??

My motive to go raid0 and wanting big sequential speed is because I want to start recording games with Fraps, so will the write speed be enough to record at 1200p 60fps?? or will I need a third HDD??

I don't go with SSD because of the wear it would have on it.
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a c 542 G Storage
October 13, 2013 4:25:22 PM

Aminados said:
If I add a third caviar black to the array will my sequential speed still go up??


Yes, it will.

Aminados said:
so will the write speed be enough to record at 1200p 60fps?? or will I need a third HDD??


Sorry, I don’t know how many HDDs you need in RAID-0 to record at 1200p 60fps. If no one in this section of the Forum can answer the question then ask it in the Video Games section of the Forum.
October 13, 2013 4:37:08 PM

Just found this:



I guessing with RGB on, 1200p and 60fps I would need at least 3 caviar blacks for a write speed of 264Mb's ??? Well RGB is not that important...
a c 542 G Storage
October 13, 2013 4:43:37 PM

Yeah, it looks like you need a minimum of 3 drives.
Also FYI, there's no fault tolerance with a RAID-0 array. So if one drive in the array dies then you lose all of your data. So have a backup plan in place.
a c 542 G Storage
October 13, 2013 4:53:36 PM

That chart is pretty useful. Where did you get it from?
October 13, 2013 5:28:03 PM

Thanks for the benchmarks but no thanks for Seagate (had trouble with them before)

BUT wait a sec... I've been googleing a bit, and it seems that for sequential speeds WD blue 1tb is actually faster then the blacks AND and a bit cheaper too??

Also short-stroking the WD blue's to 500GB seems to give insane speeds because the outer halves of these drive platters are "simply stupendously fast"

Is this right?

here: http://www.tomshardware.co.uk/forum/298444-32-raid-raid-fraps-dxtory#10334240
a c 542 G Storage
October 13, 2013 6:04:12 PM

Yeah, RAID-0 short-stroking seems to be the way to go for video recording.
Post some benchmark results when you get everything set up. :) 
!