Thanks for the info. Michael Conrad Tadpol Tilstra <mtilstra@xxxxxxxxxx> writes: > On Wed, Oct 06, 2004 at 10:36:41AM -0400, Ed L Cashin wrote: >> The memexp locking module that was new at the time of the 2000 OLS >> talk was designed to use RAM exported by fancy storage hardware for >> coordinating locking. A single node could stand in, though, taking >> the place of the fancy RAM-exporting storage hardware. Today, most >> GFS installations use DLM instead. > > Almost. Most gfs installations today use gulm, which is a fail-over > equiped lock server. We have a DLM that will be available later. > (usable now from cvs if you want.) ... [regarding node death tracking] > A cluster manager takes care of this now. The core portion of gulm > tracks membership of the cluter. For the DLM, we have a cluster manager > named cman. Will DLM + cman make GULM unnecessary? Or will we still have GULM when DLM and cman are in widespread use? If so, what will its role then be? -- Ed L Cashin <ecashin@xxxxxxxxxx>
