People would go for 4 HDD's on RAID 0.. ok its great speed, but it carries a huge risk of problems...
People don't understand what RAID settings are, they just read a little bit and think they know it and when something goes wrong they blame hardware rather than themselves for not doing it right.
Raid 0 is fast because its a combined speed of all drives in the array, for instance say 3 drives in raid 0
1st drive reads at 80MB/s
2nd drive reads at 62MB/s
3rd drive reads at 70MB/s
The total speed would be 212MB/s.. the reason is this...
RAID 0 stores data on all 3 drives, but in pieces, one drive will get 1/3 of the data, so will the 2nd and 3rd drive.. not one drive contains 100% of a file. So when you access a file it has to access all 3 drives simultaneously which means all drives speeds are added.
The one bad thing is, if one drive fails, every file in the Array is now dead until that drive doesn't fail, and if its a windows system file it could kill the whole array forcing the user to reinstall windows etc..
Now RAID 10, offers both speed and reliability, but as said requires at least 4 drives to do so..
2 in RAID 0 for the speed
2 in RAID 1 for the reliability
Reliability because the RAID 1 array is a photocopy essentially of their tied drive in the RAID 0 array, so if one of the drives fail the data is recopied back into the array on the disc that failed. So essentially it will never fail, well 99% of the time it won't :P
i posted this in another thread with a similar theme but nobody responded...so here i am again.
my limited understanding of RAID was hinting towards a RAID 10 being the best balance between speed and reliability. but here's what i really want to know:
in terms of actual performance would RAID 10 be faster than an SSD?
would RAID 10 be faster than a Veloci-Raptor HDD?
which of the 3 would be the fastest?
Sorry to hijack your topic saurabhfzd. I ran a search of the boards and was unable to find anything... apparently I just did not look hard enough.
wasn't exactly the same but similar as in relating to HDDs.
u're not hijacking my topic...if anything i'm hijacking urs
...my question still remains un-answered.
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