At 12:01 -0400 26/9/07, Ross S. W. Walker wrote: >CFQ is intended for single disk workstations and it's io limits are >based on that, so it actually acts as an io govenor on RAID setups. > >Only use 'cfq' on single disk workstations. > >Use 'deadline' on RAID setups and servers. Many thanks Ross, that's one variable tied down at least :-) S.