[wellylug] RAID5 with LVM

Cliff Pratt enkidu at cliffp.com
Tue May 29 09:12:53 NZST 2007


Jim Cheetham wrote:
> On 28/05/07, Nathan Cook <nathan at cook.net.nz> wrote:
>> I have 3 SATA drives that I want to create a Software RAID5 array with 
>> and
>> then create an LVM, then add that array to the LVM.
> 
> I know a serious how-not-to.
> http://www.baarf.com/
> 
> The Battle Against Any Raid Five
> 
> Honestly, RAID5 is a waste of resources. (And RAID4 and RAID3 ...)
> Writes are slower than they need to be, and more importantly a data
> error in your parity stripes will be unreported until it becomes
> fatal, in most cases.
> 
> RAID10 or just RAID1, please.
> 
That article is seriously funny! Might have been true a decade ago...

Cheers,

Cliff




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