150 raptor or 2 74's in a raid 0 ?????

mattio1980 · 19 Jan 2006 at 01:30

what am i better off doing can either sell my current 74 for 85 and then put the rest of the money towards the 150 or get another 74 then 0 them whats the best idea??????? what will be faster ???

smids · 19 Jan 2006 at 01:48

RAID0 74 is faster but I am currently selling my 74's (having just had them in a RAID0) and sticking with this one 150GB. I just didn't think the hassle was worth the small increase in speed.

mattio1980 · 19 Jan 2006 at 02:02

it's that small bit of me wants that tiny bit of speed though but but i just dont know

smids · 19 Jan 2006 at 02:04

Really, you won't notice it. I barely even think about it now, as these 150GB raptors are really fast - faster than a 74GB on it's own. WD have really pulled one out of the bag with this one.

LadFromWales · 19 Jan 2006 at 04:56

I'd rather go with the 150GB, simply for the reason that I'd have one more free SATA port for another drive later on!

Although, the noise two 74GB drives would make, would bring you closer to the true SCSI hard drive experience, since SATA is supposed to be cheap mans SCSI anyway, heh (the lovely sound of disk access, beats an LED anyday!)

mattio1980 · 19 Jan 2006 at 12:17

so can some one with a 150 to a hd tach for me and post it in hear so i can see the rough spes

thanks

smids · 19 Jan 2006 at 12:19

Here you go

:

mattio1980 · 19 Jan 2006 at 12:49

and now can some give me a hd tach with a pair of 74's in raid 0

smids · 19 Jan 2006 at 13:03

mattio1980 said:
and now can some give me a hd tach with a pair of 74's in raid 0

You should have just said so in the first place

16K stripe size (perfect for benching and running Windows).

mattio1980 · 19 Jan 2006 at 13:10

surly then the 2 74's are faster on access and burst and ave read or does the 16mb buffer make that much diffrence on the 150 and are them 74s on a 16k stripe???

smids · 19 Jan 2006 at 13:19

mattio1980 said:
surly then the 2 74's are faster on access and burst and ave read or does the 16mb buffer make that much diffrence on the 150 and are them 74s on a 16k stripe???

Well, it is faster in benchmarks, but this does not translate as well as you might think. Burst is nothing, as RAID will always have a huge burst, but any 300MB/s drive has a burst just as large and it is thoroughly useless. All you want to know is average read. Yes, there is a 50MB/s difference but even SCSI single drives can only hit 95MB/s on their own. RAID0 on 7200RPM drives usually get about 90-100MB/s. The thing about the Raptor 150 is that it is only one drive. So it is:

Quieter
More Reliable
Not noticably slower than a RAID0 raptor 74GB.

Also, that was done on a 16K stripe. My 64K stripe got 109MB/s average read (useful for dealing with large files e.g. gaming, video work, rendering where 16K will actually reduce performance considerably. 32/64K is happy medium ground for both OS speed (smaller stripe) and dealing with large files (larger stripe).

I can honestly say I don't miss my RAID0 as this 150GB feels fast enough as it is.

mattio1980 · 19 Jan 2006 at 13:25

thank for ya help smids

smids · 19 Jan 2006 at 13:26

Np. Whatever you do, you won't be disappointed, but that is my personal experience.

LewisStuart · 19 Jan 2006 at 14:59

mattio1980 said:
and now can some give me a hd tach with a pair of 74's in raid 0

And if your SATA controller is tied to the PCI bus

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