Raid one

[Karl Larsen]

Marcelo Magno T. Sales wrote:
> Karl,
>
> Em Ter 14 Ago 2007, Karl Larsen escreveu:
>   
>>     I did a Goggle search and found Linux Journal, Home, RAID-1,
>> Part 1 and 2 by Joe Malmin and Ron Shaker, 2002-08-13 and I have
>> read it like a book once. It talks to the raid-1 being a superior
>> way to back up your computer. I learned that raid mirrors
>> partitions not hard drives. You can use any two hard drives or even
>> the same hard drive! I plan to make a raid 1 using the two hard
>> drives I have in this computer right now :-)
>>     
>
> But note that RAID is not a substitute for backup. It does not let you 
> recover an older version of a modified file, nor a file deleted by 
> accident. You need backups even if you setup RAID 1.
>
>   
>>     One is a 30 GB and this is a 160 GB but f7 is in a partition of
>> 12 GB. So I can make a 12 GB partition on the 30 GB HD and make a
>> raid 1 system between /dev/hda2 and /dev/hdb5.
>>
>>     The book says if /proc/mdstat exists, you have raid support in
>> your kernel. I do :-)
>>
>>     The book set up raid 1 on Red Hat 7 and Debian Potato with the
>> early kernels 8-)
>>     
>
> It seems the tools you've read about are a bit outdated. Research a 
> bit about LVM before you setup RAID in your machine.
>
> []'s
> Marcelo
>
>   
    Well it appears LVM is about as obscure as raid-1 :-)   I am not 
sure all this will work out for me. The whole thing is odd. I can see 
how to make the partitions fd type with fdisk but it is very mushy about 
what this might do.



-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.