| 摘要 |
<p>A data storage system and a method of improving the performance of reading data from a hard drive provided in a computer system. The method comprises receiving a request from a host system to read data with a defined starting address in the hard driven, and determining if the address of requested data is contiguous to a previously accessed data. If the address of the requested data is contiguous to the previously accessed data, then the method comprises reading the requested data from the hard drive. If the address of the requested data is not contiguous to the previously accessed data, then the method comprises determining whether a first portion of the requested data resides on a non-volatile mass storage device. If the first portion of the requested data resides on the non-volatile mass storage device, then the method comprises reading the first portion of the requested data from the non-volatile mass storage device and reading the remainder of the requested data from the hard drive. If the first portion of the requested data does not reside on the non-volatile mass storage device, then the method comprises reading the requested data from the hard drive and copying the first portion of the requested data to the non-volatile mass storage device.</p> |
