Re: [Moosefs-users] How to make MFS replicate automatically?

[Ricardo J. B. <ric...@da...>]

El Miércoles 29 Junio 2011, youngcow escribió:
> I think you can use raid technology to protect drives failed on one
> chunkserver.

Yes, but as Laurent said you (still) loose fault tolerance.

Disks aren't the only components that can fail, you also have to take 
consideration power supply, memory, processor, motherboard, etc.

So I guess it depends on how critical the data you put in mfs is, or as I read 
some time ago:

"<Dr_Memory> or to put it another way: your kitten photos do not need the same 
high-availabity system infrastructure as Citibank's transaction databases :)

<topaz> I CAN HAS FIEV NIENS?"

:)

> > I have a sense that this question is due to confusing drives and
> > chunkservers.  MFS only replicates across chunkservers.  So, if you have
> > multiple drives attached to a single chunkserver, MFS wont replicate
> > inside of the chunkserver.
> >
> > this brings up my question - can one safely run multiple chunkserver
> > processes on a single machine?
> >
> > max

Cheers,
-- 
Ricardo J. Barberis
Senior SysAdmin / ITI
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