Re: Simplest and cheapest RAID
First of all, thanks everyone who replied.
On Thu, 16 Sep 2010 20:03:09 -0400, Damon L. Chesser wrote:
>> How practical is to create a simplest and cheapest RAID, using 2
>> partitions on the same disk, combining them as a RAID drive?
>
> It is not practical at all since if you loose the drive, you loose both
> partition, thus defeating the purpose (0ne of them) of RAID.
Ok, seems everyone thinks this way. My justification was, HD normally not
dies all of sudden. There should be signs of failing sectors. When it
happens, I might have a better chance salvage from the other copy. Yeah,
I agree, this is cheep. :-)
> Having said that, it is trivial to use mdadmin to set up a raid device
> of partitions on one HD. You will get a speed penalty as you are trying
> to access one HD multiple times to write data or read data, but you can
> do it as a training exercise to get to know the mdadmin commands. See
> here: http://tldp.org/HOWTO/Software-RAID-HOWTO.html#toc6
Thanks -- that's exactly the kind of information that I was hoping for,
beyond just "not practical".
Thanks again for everyone who replied.
--
Tong (remove underscore(s) to reply)
http://xpt.sourceforge.net/techdocs/
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