Optimized performance through leveraging appropriate disk sectors for defragmentation in an erasure coded heterogeneous object storage cloud

A computer program product for optimizing data defragmentation, the computer program product comprising:

• one or more computer-readable tangible storage devices and program instructions stored on at least one of the one or more computer-readable tangible storage devices, the program instructions comprising:
• program instructions to collect details related to contiguous storage space available on a disk drive;
• program instructions to identify a type of object storage implementation utilized on the disk drive, wherein the type of object storage implementation is based on how an object is stored within the disk drive, and wherein program instructions to identify the type of object storage implementation utilized on the disk drive comprises program instructions to determine whether the object is stored together with, or separately, from an element selected from the group consisting of metadata corresponding to the object and a durability file corresponding to the object, and wherein the durability file corresponding to the object comprises a hash value for the object and is used to verify integrity of the object;
• program instructions to identify an important component of the object, wherein the important component of the object is determined by a frequency of access of the important component;
• program instructions to identify a non-important component of the object, wherein the non-important component of the object is determined by a frequency of access of the non-important component;
• program instructions to move the important component of the object to an outer sector of the disk drive, wherein the outer sector of the disk drive comprises available contiguous space sufficient to store the important component in its entirety;
• and
• program instructions to move the non-important component of the object to an inner sector of the disk drive.

A computer system for optimizing data defragmentation, the computer system comprising:

• one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage devices, and program instructions stored on at least one of the one or more computer-readable tangible storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the program instructions comprising:
• program instructions to collect details related to contiguous storage space available on a disk drive;
• program instructions to identify a type of object storage implementation utilized on the disk drive, wherein the type of object storage implementation is based on how an object is stored within the disk drive, and wherein program instructions to identify the type of object storage implementation utilized on the disk drive comprises program instructions to determine whether the object is stored together with, or separately, from an element selected from the group consisting of metadata corresponding to the object and a durability file corresponding to the object, and wherein the durability file corresponding to the object comprises a hash value for the object and is used to verify the integrity of the object;
• program instructions to identify an important component of the object, wherein the important component of the object is determined by a frequency of access of the important component;
• program instructions to identify a non-important component of the object, wherein the non-important component of the object is determined by a frequency of access of the non-important component;
• program instructions to move the important component of the object to an outer sector of the disk drive, wherein the outer sector of the disk drive comprises available contiguous space sufficient to store the important component in its entirety;
• and
• program instructions to move the non-important component of the object to an inner sector of the disk drive.