Hi Jon,
> On Mon, 12 Apr 2010, Troy Dawson wrote:
>
> > Hello,
> > We are looking at puting drbd into SL5. I do not think our packaging is
> > ready to go into SL 5.5, but I'd like to have it tested before putting
> > it into contrib, and then we'll see whether we want to put it in SL 5.6.
> >
> > "DRBD is a block device which is designed to build high availability
> > clusters. This is done by mirroring a whole block device via (a
> > dedicated) network. You could see it as a network raid-1."
>
> I know nothing about DRBD but isn't there already another
> implementation of something very similar (NBD, ENBD etc)?
There are other implementations, even Red Hat have their own for the Red Hat
Cluster suite (GNDB), but IMHO drbd is more widely used, more widely tested
and surpasses them with it's feature set and tools.
It's my understanding that drbd will be added to the Linux kernel (if it
hasn't been already).
If you're interested in it's features, development and tools, you can visit
www.drbd.org to find out more.
Regards,
Michael.
> http://nbd.sourceforge.net/
> http://www.it.uc3m.es/~ptb/nbd/
>
> I know that some of the cluster vendors were taking the NBD/ENBD
> code and improving it in various ways. Is this what DRBD is or does
> it do more than md over NBD can?
>
> [ Not that I've used NBD/ENBD either but I've been told that another
> department are using it a lot as part of a backup solution (not that
> this means much to us)... ]
>
> --
> /--------------------------------------------------------------------
> \ | "Computers are different from telephones. Computers do not
> ring." | | -- A. Tanenbaum, "Computer Networks", p. 32
> |
> ---------------------------------------------------------------------|
> | Jon Peatfield, _Computer_ Officer, DAMTP, University of Cambridge
> | | Mail: [log in to unmask] Web:
> http://www.damtp.cam.ac.uk/ | \--------------------------------------
> ------------------------------/
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