公开(公告)号：SG11201404021WA

公开(公告)日：2014-08-28

申请号：SG11201404021W

申请日：2013-05-14

Applicant: IBM

Inventor： JONES CARL EVAN ,  CHHAUNKER GAURAV ,  BAVISHI PANKAJ ,  KHANDELWAL PANKAJ OMPRAKASH ,  ROY SUBHOJIT

IPC: G06F12/02

Abstract: A source code-based specification is implemented for use as an interface between a storage controller and an owning application to migrate a specified size of data from physical storage behind the LUN to a new physical location.

公开(公告)号：GB2496471B

公开(公告)日：2013-10-23

申请号：GB201213942

申请日：2012-08-06

Applicant: IBM

Inventor： JONES CARL EVAN ,  FISKE RAHUL ,  ROY SUBHOJIT

IPC: G06F12/10 ,  G06F3/06

公开(公告)号：GB2496471A

公开(公告)日：2013-05-15

申请号：GB201213942

申请日：2012-08-06

Applicant: IBM

Inventor： JONES CARL EVAN ,  FISKE RAHUL ,  ROY SUBHOJIT

IPC: G06F12/10 ,  G06F3/06

Abstract: Increasing the efficiency of a "copy-on-write" operation performed on a solid state drive to extend the life of the solid state disk. For example by receiving a first logical address specifying a logical location where new data should be written to an SSD. The first logical address maps to a first physical location, storing original data, on the SSD. The method further receives a second logical address specifying a logical location where the original data should be available on the SSD. The second logical address maps to a second physical location on the SSD. To efficiently perform the copy-on-write operation, the method writes the new data to a new physical location on the SSD, maps the first logical address to the new physical location, and maps the second logical address to the first. The wear leveling algorithm may select the new location.