Re: RAIID information
- From: "Ken Blake, MVP" <kblake@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 4 Dec 2005 13:27:20 -0700
Ohan Armoudian wrote:
> Hi group,
> We have few computers and few laptops but non of them has RAID drives
> in them. We are getting (custom made) WinXP Pro, 2 drives with RAID.
> The tech person explained that the drives back each other.
> We will have 2 drives, 2 GB memory.......DVD player, DVD writer and
> the latest Intel processor (do not know exactly...)
> Thanks for the feedback (if there is any...
> Thanks in advance for the reply
If you will be using the drives to "back each other [up], you are talking
about RAID 0, otherwise called mirroring.
You want feedback? Comments on that approach?
Mirroring is *not* suitable for using as backup. Mirroring is a technique
used for a situation in which downtime can't be tolerated. If, for example,
you're running an airline reservation system, you don't have time to restore
backups; the customer goes elsewhere while you restore. Raid 0 creates a
mirrored drive and lets the computer automatically and
seamlessly change to using the mirror drive if the primary one fails. When
you mirror, you still need a separate backup, because relying on a mirror
leaves you vulnerable to most of the common dangers to your drive(s), such
as severe power glitches, nearby lightning strikes, virus attacks, even
theft of the computer.
Secure backup needs to be on media stored externally to the computer. For
really secure backup (needed, for example, if the life of your business
depends on your data) there should be multiple copies of the media, with at
least one copy stored off-site.
--
Ken Blake - Microsoft MVP Windows: Shell/User
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- References:
- RAIID information
- From: Ohan Armoudian
- RAIID information
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