Can you mirror a 7200 and a 5400 of equivalent size?

[smp]

I know nothing of raid .. is mirroring raid 0 ? Anyways, can you? 5400 + 7200 .. can I mirror this?

 

[Yobbo]

I would think you can, but it would slow you down

 

[smp]

Thank .. nice site BTW :Q

 

[Athlon4all]

Doing any kind of RAID on different drives is risky and tricky (hey that rhymes). The risk is not as great with a mirror as it would be with Striping but still, it would be risky none the less.

Oh RAID 0= Striping (basically each file is cut into the stripe size and one block put on one disk the other put on the other)
RAID 1= Mirroring (you know what that is rite?)

 

[smp]

Thanks Athlon .. yeah, I'm familiar with the concepts for both, just never have done it myself. Why would it be risky to do with different speed drives? I'm going to be using software raid provided by redhat (I think, if this is an option) as my board doesn't have a raid controller and I don't have a raid card ... but I'de take a modded promise fastrak 66 for 20 shipped if someone has one

 

[SocrPlyr]

if you software raid those drives your speed will be slightly less than that of the single 5400RPM drive... since it rights to both at the same time then it can only right as fast as the slower drive, also there is a little overhead for the raiding and that is why it is slower than the 5400RPM drive itself
also heed the warning left by the others about the mismatched drives...


Josh

 

[R2D2]

You're just copying one drive to another - with no Raid.

You'll have Zero problem whatsoever, unless of course one of your drives is bad.