> DRBD really doesnt make sense for memcached, since memcached doesnt hit the > disk. > > What you really need is a way to keep the memcached memory arena (mostly) in > sync between the pair. > > There is an open source patch, but it's old and has problems. > > There is also a commercial solution that does it.
There's an open source one that works just fine, and is supported in a main library: http://blogs.sun.com/trond/date/20090625 -Dormando
