×

STORAGE SYSTEM AND DATA CONTROL METHOD

  • US 20180039444A1
  • Filed: 04/09/2015
  • Published: 02/08/2018
  • Est. Priority Date: 04/09/2015
  • Status: Active Grant
First Claim
Patent Images

1. A storage system comprising:

  • a first storage device;

    a second storage device with a smaller upper limit number of writes and a larger storage capacity per unit area than those of the first storage device; and

    a processor that allocates storage areas from the first storage device and the second storage device to a virtual volume to be provided to a host,wherein the processor relocates data which is stored in a storage area with higher write frequency from the host than a predetermined write threshold, from among the storage areas allocated from the second storage device to the virtual volume, from the storage area of the second storage device to a storage area of the first storage device.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×