On 05/07/2013 08:45 PM, Valerio Pachera wrote: > Is it possible to enable cache only on some nodes of the cluster? > Sure. The object cache stores the data on the node where runs sheep daemon that VM connect to. There are two ways to disable object cache: 1 no '-w' option enabled at startup. Cache is completely disabled for this node. Cache option control from QEMU command is meaningless. 2 '-w' for sheep is enabled. Then QEMU take control of cache mode of the VM connected to this sheep. - cache=writeback, enables the writeback cache for this VM - cache=directio, disable the cache for this VM - cache=writethrough, enables the writethrough cache for this VM Thanks, Yuan |