A LOOSE COUPLING BETWEEN RAID VOLUMES AND DRIVE GROUPS FOR IMPROVED PERFORMANCE

摘要

The present disclosure describes a system and method for allocating volume pieces across a redundant array of inexpensive discs (RAID). A method for allocating volume pieces across a redundant array of inexpensive discs (RAID) may comprise: (a) associating one or more volume pieces of a first logical volume with a first set of drives in a drive group; and (b) associating one or more volume pieces of a second logical volume with a second set of drives in the drive group, wherein the first set of drives in the drive group includes at least one drive which is not a member of the second set of drives in the drive group. A system for allocating volume pieces across a redundant array of inexpensive discs (RAID) may comprise: (a) means for associating one or more volume pieces of a first logical volume with a first set of drives in a drive group; and (b) means for associating one or more volume pieces of a second logical volume with a second set of drives in the drive group, wherein the first set of drives in the drive group includes at least one drive which is not a member of the second set of drives in the drive group.