File management in a file system

A computer program product for writing data, the computer program product comprising:

• one or more computer readable storage media;
• and
• program instructions stored on the one or more computer readable storage media, the program instructions comprising:
• program instructions to mount a memory, wherein the memory includes a data partition and an index partition, and wherein the data partition includes an original data and an original index written directly after the original data, and wherein the index partition includes the original index at the beginning of the index partition, and wherein the index partition is placed vertically above the data partition, and wherein a beginning of the index partition aligns with a beginning of the data partition;
• program instructions to write the first data to a data partition of the memory, wherein the first data is written directly after the original data on the data partition and wherein the original index is deleted on the data partition;
• program instructions, responsive to a time interval elapsing, wherein the time interval starts at the writing of the first data, to write a first index to the data partition of the memory, wherein the first index is written directly after the first data on the data partition;
• and
• program instructions, responsive to a time interval elapsing, wherein the time interval starts at the writing of the first data, to write the first index to the index partition of the memory, wherein the first index is written on the index partition at a closest location, in terms of movement time, to the first index on the data partition.

A computer system for writing data, the computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• and
• program instructions, stored on the one or more computer readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising:
• program instructions to mount a memory, wherein the memory includes a data partition and an index partition, and wherein the data partition includes an original data and an original index written directly after the original data, and wherein the index partition includes the original index at the beginning of the index partition, and wherein the index partition is placed vertically above the data partition, and wherein a beginning of the index partition aligns with a beginning of the data partition;
• program instructions to write the first data to a data partition of the memory, wherein the first data is written directly after the original data on the data partition and wherein the original index is deleted on the data partition;
• program instructions, responsive to a time interval elapsing, wherein the time interval starts at the writing of the first data, to write a first index to the data partition of the memory, wherein the first index is written directly after the first data on the data partition;
• and
• program instructions, responsive to a time interval elapsing, wherein the time interval starts at the writing of the first data, to write the first index to the index partition of the memory, wherein the first index is written on the index partition at a closest location, in terms of movement time, to the first index on the data partition.