On Tue, Feb 12, 2013 at 07:19:43PM +0100, samuel wrote: > Both nodes have enough disk space (1.3T) but looks like used memory is > quite high: Not true. > node1: > total used free shared buffers cached > Mem: 4047680 4012700 34980 0 276 3728652 > -/+ buffers/cache: 283772 3763908 It shows: * total memory is 4GB * any spare memory is used to cache disk blocks. In this case it's 3.7GB. * the second line shows you the memory usage after disk buffers and cache are ignored. It shows you are only using 283M and have 3.7GB free. Ditto for the second box.
