Page 618 of the Planning/Admin manual has a section that discusses "What
Devices Can Be Cached" with a sub-section of 'does not apply'. DDR, bein g the animal that it is, may not even want to get involved with anything resembling "caching" activity. On Wed, 27 Jan 2010 15:02:40 -0600, Phil Tully <tull...@optonline.net> wrote: >I have over the past couple years specifically limited the use of mdcach e in >most systems because of the lack of sharing across virtual machines. I have >been experimenting with the enabling mdcache for a limited subset of mdi sks >which are used (r/o) across multiple guests. > >I have added miniopt mdc into the directory entry for the shared mdisk. > >I have issued set mdcache rdev for the devices the mdisks are defined on . > >mdcache is on for the system , with 2000m min 9000m max (96G real storag e) > > >I start i/o to the mdisk using ddr, but I see no mdcache usage. > >Is there something that will block an mdisk from being cached?
