I realise that results vary depending on the controller, the size of the
striping, the drives and the task at hand, but generally speaking, how much
faster will a system with RAID striping operate?

I ask because after ghosting my C drive over to a pair of Seagate Barracuda
SATA .7's, I've noticed that the drives operate very noisily with a lot of
cruching and loud seeking that I don't hear when I don't set them up in a
RAID array. Is this likely to have been a side-effect of having ghosted the
contents, as opposed to creating a new install from scratch? I couldn't
notice any great increase in speed, so again I'm unsure if the RAID setup is
worth the extra noise, or if the ghosting compromised it's effectiveness.

Any ideas?

Slamadatan wrote:
> I realise that results vary depending on the controller, the size of the
> striping, the drives and the task at hand, but generally speaking, how much
> faster will a system with RAID striping operate?
>
> I ask because after ghosting my C drive over to a pair of Seagate Barracuda
> SATA .7's, I've noticed that the drives operate very noisily with a lot of
> cruching and loud seeking that I don't hear when I don't set them up in a
> RAID array. Is this likely to have been a side-effect of having ghosted the
> contents, as opposed to creating a new install from scratch? I couldn't
> notice any great increase in speed, so again I'm unsure if the RAID setup is
> worth the extra noise, or if the ghosting compromised it's effectiveness.
>
> Any ideas?
>
>
"Raid" is a broad category. So is "faster."

"Slamadatan" <(E-Mail Removed)> wrote in message
news:3f5c1e6c$0$23588$(E-Mail Removed)...
> I realise that results vary depending on the controller, the size of the
> striping, the drives and the task at hand, but generally speaking, how
much
> faster will a system with RAID striping operate?
>
> I ask because after ghosting my C drive over to a pair of Seagate
Barracuda
> SATA .7's, I've noticed that the drives operate very noisily with a lot of
> cruching and loud seeking that I don't hear when I don't set them up in a
> RAID array. Is this likely to have been a side-effect of having ghosted
the
> contents, as opposed to creating a new install from scratch? I couldn't
> notice any great increase in speed, so again I'm unsure if the RAID setup
is
> worth the extra noise, or if the ghosting compromised it's effectiveness.
>
> Any ideas?
>
I've had a couple of mobo's now with onboard raid. I must say I've seen no
real difference in speed when running two striped drives.
And having lost all my data when one of a pair of Barracuda IV's packed up
two weeks after purchase, I've given up with the idea of striping all
together. I just use the drives on the raid controller as single drives.
I also have conflict problems with the raid drivers and some programs,
notably WinRar, which runs at about a tenth of the speed it should when the
raid drivers enabled.

HTH
SteveH

You'll mainly notice the difference when you copy big folders/files - it
will copy about twice as fast.

If you get into video editing, DVD's etc you'll appreciate the extra speed.


"Slamadatan" <(E-Mail Removed)> wrote in message
news:3f5c1e6c$0$23588$(E-Mail Removed)...
> I realise that results vary depending on the controller, the size of the
> striping, the drives and the task at hand, but generally speaking, how
much
> faster will a system with RAID striping operate?
>
> I ask because after ghosting my C drive over to a pair of Seagate
Barracuda
> SATA .7's, I've noticed that the drives operate very noisily with a lot of
> cruching and loud seeking that I don't hear when I don't set them up in a
> RAID array. Is this likely to have been a side-effect of having ghosted
the
> contents, as opposed to creating a new install from scratch? I couldn't
> notice any great increase in speed, so again I'm unsure if the RAID setup
is
> worth the extra noise, or if the ghosting compromised it's effectiveness.
>
> Any ideas?
>
>

On Mon, 8 Sep 2003 16:15:09 +1000, "Slamadatan" <(E-Mail Removed)>
wrote:

>I realise that results vary depending on the controller, the size of the
>striping, the drives and the task at hand, but generally speaking, how much
>faster will a system with RAID striping operate?
>
>I ask because after ghosting my C drive over to a pair of Seagate Barracuda
>SATA .7's, I've noticed that the drives operate very noisily with a lot of
>cruching and loud seeking that I don't hear when I don't set them up in a
>RAID array. Is this likely to have been a side-effect of having ghosted the
>contents, as opposed to creating a new install from scratch? I couldn't
>notice any great increase in speed, so again I'm unsure if the RAID setup is
>worth the extra noise, or if the ghosting compromised it's effectiveness.
>
>Any ideas?
>

It varies way to much for a generalization..

Taking a moment's reflection, David A.Lethe mused:
|
| It varies way to much for a generalization..

Indeed. In fact, some configurations may be slower. If you are talking
IDE RAID ... I don't think any speed increase will be significant.

In comp.sys.ibm.pc.hardware.storage Slamadatan <(E-Mail Removed)> wrote:
> I realise that results vary depending on the controller, the size of the
> striping, the drives and the task at hand, but generally speaking, how much
> faster will a system with RAID striping operate?

I have a Linux-Software RAID-0 with two disks on different
controller channels (Maxtor DiamondMax 9 pus 120GB). It is
roughly twice as fast on linear reads and writes and roughly
as fast as the individual disks for seeks. Just what you expect.

> I ask because after ghosting my C drive over to a pair of Seagate Barracuda
> SATA .7's, I've noticed that the drives operate very noisily with a lot of
> cruching and loud seeking that I don't hear when I don't set them up in a
> RAID array. Is this likely to have been a side-effect of having ghosted the
> contents, as opposed to creating a new install from scratch? I couldn't
> notice any great increase in speed, so again I'm unsure if the RAID setup is
> worth the extra noise, or if the ghosting compromised it's effectiveness.

I have no idea what is weong with this setup. However clearly something
is wrong. Everything that is loud (seeking) is also slow and generates
heat.

Arno
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