RAID

khushy

khushy

khushy

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Joined
17 Jun 2006
Posts
612
about to set up a RAID configuration . . .

4 x WD Raptors @ 150Gb in RAID 10 (1+0) Mirror + Striping

Any tips please??

Have an ASUS P5WD2E-Premium + P4 955 Extreme + 2Gb of XMS2 PC8500

My only questions are really whats the difference between an ICH7 RAID where you have to use a floppy boot disk and the NORMAL 4x SATA connectors as opposed to a Marvell RAID setp I ASSUME) with the alternative 4 x onboard RAID SATA connectors??

Briefly configured and ICH7 2 x Raptor Striping RAID last week - boy was it fast - but need a mirror to preserve our data as well - running into 100Gb now!!!

Quick answers please - am about to commence the installation!!!

Khushy
 
Don't bother with onboard RAID5 controllers, there's no hardware support for the XOR parity calculations so the write speed is limited to about 15-20Mb/s whereas a single drive will write at almost 80Mb/s. You need to spend £300+ on a proper controller card to get decent writes.

You may think that this is fine if you're just doing a lot of read operations but if this is for the only array/disk in the system then the pagefile will need to be on it and at 20Mb/s task switching and paging out to the file will be excruciating.
 
Very expert but has a better silliness than RAID 0+1

For home use they both are daft. If you want performance then go RAID 0 on all four.


As soon as you add a RAID 1 you throw half the benefit out the window.

Its all overated, look at the benchmarks.

A T166 samsung has a better load rate on farcry that raid 0 raptors.
 
I have gone for . . .

RAID 10 (0+1) for the following reasons . . .

100+gb backup everyday is a real pain in the ar$e and there is (despite what people say) a slight performance increase - I am happy with the setup!

Thanks for all your help!

Khushy
 
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