[nylug-talk] How to set up Raid 1 on Ubuntu, Or Linux in gerneral

[Peter C. Norton]

On Fri, Jun 01, 2007 at 02:32:26PM -0400, Henning Follmann wrote:
> 
> On Jun 1, 2007, at 2:08 PM, sixtyfourbeets wrote:
> [...]
> 
> >
> > Convention dictates that when constructing
> > a true SAN one should buy drives from different
> > manufacturers.  Doing so addresses
> > the concern that a particular drive will not be the same
> > as the next drive in the SAN.  The reasoning behind that
> > is if drives are from different manufactures chances are
> > less likely that the drives will fail in a similar fashion
> > in a reasonably short time span.
> >
> > Steve M
> > ______________________________________________________________________ 
> > _______
> 
> Sorry there is no reasonable logic in what you just wrote.
> 
> Do you seriously think that two hard drives because they are built on  
> a same day in the same place will fail also on the same day?
> I think it is more likely two win twice in the lottery in the same  
> week with the same numbers.

Oddly enough, from my conversation with a google staffer, google's
internal studies do bear out that a single manfucturing lot can be
statistally identified by their failure rate and type of failure. It
means nothing about any other makers drives.

-Peter

-- 
The 5 year plan:
In five years we'll make up another plan.
Or just re-use this one.