Systems and methods for efficiently moving data within a filesystem
The disclosed computer-implemented method for efficiently moving data within a filesystem may include (1) partitioning, on a storage device, physical address space of a filesystem into a plurality of logical partitions, (2) allocating, on the storage device, at least one container of data block identifiers representing data blocks for each of the logical partitions, (3) maintaining, on the storage device, a partition map of values identifying the container of data block identifiers, the logical partitions, and at least one offset associated with each of the logical partitions, (4) sending, on the storage device, the data blocks from a source logical partition within the logical partitions to a target logical partition within the logical partitions, and (5) updating, on the storage device, the partition map based on the data blocks sent from the source logical partition to the target logical partition. Various other methods, systems, and computer-readable media are also disclosed.
1. A computer-implemented method for efficiently moving data within a filesystem, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising:
partitioning, on a storage device, a physical address space of a filesystem into a plurality of logical partitions;
allocating, on the storage device, at least one container of data block identifiers representing data blocks for each of the logical partitions;
maintaining, on the storage device, a partition map of values identifying the container of data block identifiers, the logical partitions, and at least one offset associated with each of the logical partitions;
sending, on the storage device, the data blocks from a source logical partition within the logical partitions to a target logical partition within the logical partitions; and
updating, on the storage device, the partition map based on the data blocks sent from the source logical partition to the target logical partition.
2. The method of claim 1 , wherein the container of data block identifiers corresponds to a virtual device created in each of the logical partitions.
3. The method of claim 1 , wherein the container of data block identifiers comprises a set of contiguous logical block numbers.
4. The method of claim 1 , wherein sending, on the storage device, the data blocks from the source logical partition to the target logical partition comprises performing a bulk copy operation of the data blocks from the source logical partition to the target logical partition.
5. The method of claim 1 , wherein the data blocks are sent from the source logical partition to the target logical partition during a shrink operation associated with the storage device.
6. The method of claim 1 , wherein the data blocks are sent from the source logical partition to the target logical partition during a storage device defragmentation operation.
7. The method of claim 1 , wherein updating, on the storage device, the partition map based on the data blocks sent from the source logical partition to the target logical partition comprises updating the values identifying the container of data block identifiers, the logical partitions, and the offset associated with each of the logical partitions.
8. A system for efficiently moving data within a filesystem, the system comprising:
a partitioning module, stored in memory, that partitions, on a storage device, a physical address space of a filesystem into a plurality of logical partitions;
an allocation module, stored in memory, that allocates, on the storage device, at least one container of data block identifiers representing data blocks for each of the logical partitions;
a maintaining module, stored in memory that maintains, on the storage device, a partition map of values identifying the container of data block identifiers, the logical partitions, and at least one offset associated with each of the logical partitions;
a sending module, stored in memory, on the storage device, that sends the data blocks from a source logical partition within the logical partitions to a target logical partition within the logical partitions;
an updating module, stored in memory, on the storage device, that updates the partition map based on the data blocks sent from the source logical partition to the target logical partition; and
at least one physical processor that executes the partitioning module, the allocating module, the maintaining module, the sending module, and the updating module.
9. The system of claim 8 , wherein the container of data block identifiers corresponds to a virtual device created in each of the logical partitions.
10. The system of claim 8 , wherein the container of data block identifiers comprises a set of contiguous logical block numbers.
11. The system of claim 8 , wherein the sending module sends the data blocks from the source logical partition to the target logical partition by performing a bulk copy operation of the data blocks from the source logical partition to the target logical partition.
12. The system of claim 8 , wherein the data blocks are sent from the source logical partition to the target logical partition during a shrink operation associated with the storage device.
13. The system of claim 8 , wherein the data blocks are sent from the source logical partition to the target logical partition during a storage device defragmentation operation.
14. The system of claim 8 , wherein the updating module updates the partition map based on the data blocks sent from the source logical partition to the target logical partition by updating the values identifying the container of data block identifiers, the logical partitions, and the offset associated with each of the logical partitions.
15. A non-transitory computer-readable medium comprising one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to:
partition, on a storage device, a physical address space of a filesystem into a plurality of logical partitions;
allocate, on the storage device, at least one container of data block identifiers representing data blocks for each of the logical partitions;
maintain, on the storage device, a partition map of values identifying the container of data block identifiers, the logical partitions, and at least one offset associated with each of the logical partitions;
send, on the storage device, the data blocks from a source logical partition within the logical partitions to a target logical partition within the logical partitions; and
update, on the storage device, the partition map based on the data blocks sent from the source logical partition to the target logical partition.
16. The non-transitory computer-readable medium of claim 15 , wherein the at least one container of data block identifiers comprises a set of contiguous logical block numbers.
17. The non-transitory computer-readable medium of claim 15 , wherein the data blocks from the source logical partition to the target logical partition are sent by performing a bulk copy operation of the data blocks from the source logical partition to the target logical partition.
18. The non-transitory computer-readable medium of claim 15 , wherein the data blocks are sent from the source logical partition to the target logical partition during a shrink operation associated with the storage device.
19. The non-transitory computer-readable medium of claim 15 , wherein the data blocks are sent from the source logical partition to the target logical partition during a storage device defragmentation operation.
20. The non-transitory computer-readable medium of claim 15 , wherein the partition map is updated based on the data blocks sent from the source logical partition to the target logical partition by updating the values identifying the container of data block identifiers, the logical partitions, and the offset associated with each of the logical partitions.