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Re: Is RAID 1 satisfactory to protect from HHD failure?

Subject: Re: Is RAID 1 satisfactory to protect from HHD failure?
From: Rob Morley
Date: Mon, 30 Nov 2009 13:44:47 +0000
Newsgroups: uk.comp.homebuilt

On Mon, 30 Nov 2009 11:11:33 +0000
Chronos <me3@xxxxxxxxxxx> wrote:

> Rob Morley wrote:
> 
> >> > I think a RAID 1 setup simply produces (auromatically) a mirror
> >> > (clone?). That's not just my data, but everything on drive 0. If
> >> > that is the case, then I guess RAID 1 is producing a situation
> >> > that I have now (better actually) but the copying is made
> >> > automaically. Am I understanding things correctly? Thanks.
> >>
> >> Pretty safe unless PC is stolen or catches fire.
> > 
> > Or the PSU has a fit and kills both the hard drives
> 
> Or you get a piece of malware and your RAID controller/software
> replicates it to both drives. RINSFB (RAID is no substitute for
> backup).

You snipped the bit where he said he was talking about protection from
drive failure - obviously mirroring doesn't guard against malicious or
unintentional data loss through normal means, for that only a proper
backup scheme provides some protection.


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