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RAID 0 performance question

T

tmchow

Senior member
Just wondering about RAID 0 and it's suitability for home use.

I'm thinking about buying a huge HD, like 80GB, but am wondering if it would be better to go about getting two 40GB drives and using RAID 0.

From what I've read, I'm gathering that the performance boost is significant. So is it treated by the OS as a single 80GB drive?

I've briefly glanced on the web, and one site showed some benchmarks in linux with RAID 0 and showed CPU utilization to be liek 5 times higher with RAID 0. Is this a concern?
 
Yes, using RAID 0 gives a *large* performance increase ... my Counter-Strike server was *very* happy to get raided ...

you can go software raid or hardware raid. hardware raid, imo, is much much much better, but doesn't come with win2k like software raid does.

win2k software raid requires 3 drives: 1 to boot from, 2 to RAID.

randal
 
The performance increace is only transfers, seeking is the same. Also, your data is twice as likely to die, since both disks are holding your data.. general consenses says that there isn't much difference for everyday use too. Games that suck a bunch of big files from the disk will do better, but once again getting a bunch of small files with seeks wont see much increase.

You are probably better of investing in SCSI if you want to get good performance. But large drives will cost ya. For IDE, one big drive can be about as good as two small ones. Especially if the big drive has a higher density or RPM rating.
 


<< win2k software raid requires 3 drives: 1 to boot from, 2 to RAID. >>

Not true. win2k can software raid partitions, so you can make 2 same size paritions on your drives and raid them. unlike hardware raid, they can be on any controller (even the motherboard ide controller), so you don't need extra hardware, but it's no where near as fast as hardware raid.

here's a link to my drives to give you an idea of the difference.
 
What I heard is that it's generally not worth going with a Raid 0 setup if you care about your data. If one drive fails, you lose all the information on both drives. I can see Raid 0 as being a benefit on a gaming only system or a system that is frequently backed up, but I wouldn't trust it for anything else.

Sal
 
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