STORAGE DEVICE AND METHOD FOR CONTROLLING STORAGE DEVICE

摘要

To detect an abnormality of logical and physical addresses, a storage device includes: plural drives each having a storage medium configuring a logical volume provided to a host device; a front end I/F that receives an I/O request including a logical address for identifying a logical storage area of the logical volume, and user data from the host computer; a processor that controls conversion from the logical address into the physical address for identifying a physical storage area of the storage medium; and a back end I/F that controls write/read of user data with respect to the drives based on the physical address. In the drives, data where a first guarantee code obtained based on the physical address and the logical address corresponding to the physical address is added to the user data is stored in the physical storage area designated by the physical address of the storage medium.

主权项

1. A storage device comprising:
a plurality of drives each having a storage medium configuring a logical volume provided to a host device; a front end I/F that is connected to the host device, and receives an I/O request including a logical address for identifying a logical storage area of the logical volume, and user data from the host computer; a first processor that is connected to the front end I/F, and controls a conversion from the logical address into the physical address for identifying a physical storage area of the storage medium; and a back end I/F that is connected to the first processor and the plurality of storage media, and controls write/read of the user data with respect to the plurality of drives on the basis of the physical address, wherein, in the drives, data in which a first guarantee code obtained on the basis of the physical address and the logical address corresponding to the physical address is added to the user data is stored in the physical storage area designated by the physical address of the storage medium.