Storage system and storage control method

摘要

When a request to write data to a logical storage area realized by a storage area of a first storage apparatus is made in a storage system, a determination section determines whether a write pattern is sequential access or random access. When the write pattern is the sequential access, a control section writes the data to the logical storage area. On the other hand, when the write pattern is the random access, the control section writes the data to a virtual storage area obtained by virtualizing a storage area of a second storage apparatus which is faster in access speed than the first storage apparatus.

主权项

1. A storage system comprising:
a first storage apparatus; a second storage apparatus which is faster in access speed than the first storage apparatus; and a storage control apparatus including a processor configured to perform a procedure including: determining, upon receipt of a request to write data to a logical storage area realized by a storage area of the first storage apparatus, whether a write pattern is sequential access or random access; writing the data to the logical storage area when the write pattern is the sequential access; writing the data to a virtual storage area obtained by virtualizing a storage area of the second storage apparatus when the write pattern is the random access; and writing the data written to the virtual storage area to a corresponding position in the logical storage area in asynchronization with writing the data to the virtual storage area.