network raid possible?

Igor Gueths igueths at lava-net.com
Wed Mar 24 10:42:13 EST 2004


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Hmm. That might just work...However I as thinking more along the lines 
of NBD support. Because my problem eventually will be high traffic 
loads, so therefore I'm going to have to distribute the load across 
multiple machines...Thus the random returning of A records comes in. As 
a result of that I need a way for the user to be able to connect to 
lava-net.com, get connected to any one of several servers, and they 
upload new content. Then in theory the change gets proppogated to the 
rest of the machines since all of them are synchronized to each other. I 
don't think rsync would be very apropriate here only because of the 
instant synchronization. What I thought more suitable were network block 
devices that I could just add to my existing RAID. However unfortunately 
that doesn't seem ready for production use, or so I have been told.
On Tue, Mar 23, 2004 at 09:59:52PM -0700, Joseph C. Lininger wrote:
> 
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> Hi,
> If your wanting to do this to implement distribution across file
> servers, you'd be better off using something like virtual servers.
> That is, many servers appear as one on the network. Load balancing is
> seamless because one server accepts all requests, then either handles
> them itself or passes them to one of the other servers based on any
> one of several scheduling algorithms.
> - ---
> Joseph C. Lininger
> jbahm at pcdesk.net
> - ----- Original Message ----- 
> From: "Alex Snow" <alex_snow at gmx.net>
> To: "Speakup is a screen review system for Linux."
> <speakup at braille.uwo.ca>
> Sent: Tuesday, March 23, 2004 3:32 PM
> Subject: Re: network raid possible?
> 
> 
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> > If network raid is possible it would be extremely slow especially over
> > the internet if that's what you're planning on. the ideal way to do it
> > would be something like gigabit ethernet lan but that kit is
> > expensive.
> > On Tue, Mar 23, 2004 at 04:57:23PM -0500, Igor Gueths wrote:
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> > > Hi all. I'm going to need this type of functionality sometime in he
> > > future. And I can't use NFS, because its too centralized. Does anyone
> > > know if its currently possible to add network filesystems to a RAID?
> > > Because if so, what I'd like to implement is a system where all the
> > > networked filesystems are synchronized to each other. So in other words,
> > > any changes made from my machines here gets proppogated to the rest of
> > > them since they're all seen as 1 disk. And I'd also have to make it so
> > > Bind returns A records in random order for propper load balancing.
> > > Speaking of Bind, I posted this a while back but never got any replies.
> > > Is rrset-order supported in Bind-9.2.3RC4? Thanks!
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