Fact Backed Opinions Welome

I have one ST3250310NS. My theory is that three of these in RAID0 will yield a higher W.E.I. and perform better than my two V'raptors in RAID0 (32Mb cache vs. 16Mb cache).

Let the opinions fly !

 

.......Still hoping someone will wade in here to kick this idea around.

 

To specialized for me !

 

If you take RAID back to basics (it's a tool for allowing the 'illusion' of more than one disk to appear as one disk and then write the data accordingly in whichever method of RAID you choose)

3 or 4 of any disks regardless what they are are still bound by the speed/cache of the lowest performance disk being used

the seek and the cache are the only figures you need be concerned with as the size of the HDD wont make any difference as it's RAID

so it basically boils down to:-

1 of your ST3250310NS Vs 1 of your Raptors.

you cant really pitch anything against a raptor other than an SSD or SCSI drive.

If I get round to it, I'll do some benchmarks on my SCSI drives for comparison too (none using RAID though)

 

True. The seek time is slower. One on one there's no contest. But the cache is 32MB's vs. 16MB's. I've speculated this might be an advantage in a RAID 0 configuration.

 

I think any benefit in the cache will be ripped away by the RAID configuration.

Lets see the results

 

If I hadn't already spent money on V'raptors, I'd move in this direction. Three 7200's in RAID 0 are certainly faster than one 7200.

 

RAID itself is faster, especially striped, as its writes the data to each drive sequentially, but there lies its biggest flaw any slight issues and you need to rebuild the array.

The only RAID worth using mirrored imho, but again you need specific requirements to justify using it.