Patent ID: 7047366
Filing Date: 2006-05-16
Classification: G06F

Abstract:
1. A method for determining cache behavior associated with a logical volume comprising: associating at least one parameter affecting a caching characteristic associated with said logical volume, wherein a group of one or more parameters affecting a cache characteristic is configurable on a per logical volume level of granularity; and selecting a value for said at least one parameter, wherein said at least one parameter includes at least one of: a partition parameter, a survival parameter, a linearity parameter, and a flush parameter, said partition parameter designating which portions of cache may be used by said logical volume, said survival parameter affecting a time period that a portion of data associated with said logical volume remains in cache, said linearity parameter affecting whether data prefetching is performed for said logical volume, and said flush parameter affecting a time period a portion of data associated with said logical volume remains in cache after destaging a write of said data to said logical volume.