>It is best to have identical drives.

While it is easiest to manage a RAID 1 array of identical drives, it may be
prudent to use similar size drives from different vendors.  I've heard too
many stories of identical drives in RAID configs that were bought at the
same time failing within days of each other.

Carl

-----Original Message-----
From: PCBUILD - Personal Computer Hardware discussion List
[mailto:[log in to unmask]] On Behalf Of Mark Rode
Sent: Wednesday, July 21, 2004 1:35 PM
To: [log in to unmask]
Subject: Re: [PCBUILD] HD raid upgrade

At 08:08 AM 7/21/2004, you wrote:
>I don't think that you want to mix your 7200 rpm and your 10000 rpm drives
>in a RAID arrangement.  You'll lose the advantage of having a 10000 rpm
>drive.

Not so, but you will loose some performance, because the data will come off
the 10K drive faster then the 72K drive, causing some delay as it is put
back together. It is best to have identical drives.

>The RAID configuration cannot be across different types of controllers.

Not true. In fact in a software RAID using different controllers is
desirable.


>10,000 rpm drives run hot, so cooling is a significant concern.  Whether

10K SCSI drives run hot, but 10K SATA Raptors are not much different,
thermally, then your average high end 72K PATA drive.


Rode
The NOSPIN Group
http://freepctech.com



you'll need extra cooling will depend on your case and how the fans are
>arranged in it.  Many have an intake fan placed in the front to blow over
>the hard drive cage, which is usually placed just adjacent to this fan.
>
>John Sproule

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