Program that determines the caching of data in a storage system having a cache, system, method and

摘要

Computer to use the attributes of a write request to determine where to cache data in a storage system having a cache including a plurality of non-volatile storage cache SOLVED] sequential access storage device, program product, system, and method is provided. modified pre-track [SOLUTION] The received, is cached in the non-volatile storage device that is integrated with the sequential-access storage device in response to the decision to cache the modified pre-track. Write request having been modified track is received. I is determined attributes of the write requests received is equal to or meet. Modified pre track is received for the write request is cached in the non-volatile storage device in response to determining that the attribute is the determination does not satisfy the condition. De staging request is added to the request queue for write requests received with the attributes to be determined do not meet the said conditions. [Selection Figure 9