L. Jason Godsey wrote:
> I have setup several cluster labs.
> 
> You didn't specify your operating system, so I'll just mention my linux
> configuration.
> 
> The EASIEST by far is using PeerFS by Radiant Data.  PeerFS uses local
> storage on each cluster member.
> http://radiantdata.com/English/Products/PeerFS.html
> 
> I didn't have any $$ in budget for PeerFS license so it didn't get
> beyond my lab.  It worked very well and I was impressed.
> 
> I was also able to get GFS working.  I used ATAoE on 2 machines to act
> as redundant file store, then on mailbox/database machines I used lvm2
> w/ clvmd and gfs to mount the drives from the 2 ATAoE hosts.
> 

Yes, this solution works quite well, but only on linux and is not free
(no source code availability), which may be a barrier for many people.

If you have linux, and, as MySQL multimaster replication is easy
(http://www.onlamp.com/pub/a/onlamp/2006/04/20/advanced-mysql-replication.html),
you can also use MySQLfs (https://sourceforge.net/projects/mysqlfs/).


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