Data storage resource management systems and methods
Storage systems and methods are presented. In one embodiment, a data storage resource management method comprises: performing a data update process, including communicating a data update input output packet between a primary storage resource and a secondary storage resource, wherein corresponding data updates in the secondary storage resource are a mirror of data updates in the primary storage resource; and performing a reclamation process, including: communicating reclamation information in a reclamation input output packet through the same interface as the data update input output packet, wherein the reclamation input output packet is communicated between the primary storage resource and the secondary storage resource; and reclaiming storage locations on the secondary storage resource in accordance with reclamation information in the reclamation input output packet communicated between the primary storage resource and secondary storage resource.
1. A data storage resource management method comprising:
performing a data update process, including communicating a data update input output packet between a primary storage resource and a secondary storage resource, wherein corresponding data updates in the secondary storage resource are a mirror of data updates in the primary storage resource; and
performing a reclamation process, including:
reclaiming a storage location at the primary storage resource;
generating reclamation information indicating that the storage location has been reclaimed;
storing the reclamation information in a buffer at the primary storage resource;
generating a reclamation input output packet at the primary storage resource based on the reclamation information stored in the buffer that indicates the storage location that has been reclaimed, the reclamation input output packet being separate from the storage location, the data update input output packet, and the buffer;
communicating the reclamation input output packet through the same interface as the data update input output packet, wherein the reclamation input output packet is communicated between the primary storage resource and the secondary storage resource; and
reclaiming storage locations on the secondary storage resource in accordance with reclamation information in the reclamation input output packet communicated between the primary storage resource and the secondary storage resource.
2. The data storage resource management method of claim 1 , wherein the reclaiming of the storage locations on the secondary storage resource is performed in the same order as reclamation on the primary storage resource with respect to the data updates on the primary storage resource and the corresponding data updates on the secondary storage resource.
3. The data storage resource management method of claim 2 , wherein the reclamation input output packet includes a reclamation indication flag and reclaim specific meta data.
4. The data storage resource management method of claim 1 , wherein reclamation on the secondary resource is performed online with a running application unaltered with respect to the reclamation on the secondary side.
5. The data storage resource management method of claim 1 , wherein the reclamation input output packet is logged in a staging component in the order it is received and is temporarily stored in the buffer.
6. The data storage resource management method of claim 1 , wherein the reclamation input output packet includes a packet header, an input output header, and a payload that indicates a storage location offset to begin reclamation and an indication of the amount of storage locations to be reclaimed.
7. The data storage resource management method of claim 1 , wherein the secondary resource decodes the reclamation information in the reclamation packet.
8. A reprogrammable tangible computer readable storage medium having stored thereon computer executable instructions that, when executed by a computer system, cause the computer system to perform a method comprising:
performing a data update process, including communicating a data update input output packet between a primary storage resource and a secondary storage resource, wherein corresponding data updates in the secondary storage resource are a mirror of data updates in the primary storage resource; and
performing a reclamation process, including:
reclaiming a storage location at the primary storage resource;
generating reclamation information indicating that the storage location has been reclaimed;
storing the reclamation information in a buffer at the primary storage resource;
generating a reclamation input output packet at the primary storage resource based on the reclamation information stored in the buffer that indicates the storage location that has been reclaimed, the reclamation input output packet being separate from the storage location, the data update input output packet, and the buffer;
communicating the reclamation input output packet through the same interface as the data update input output packet, wherein the reclamation input output packet is communicated between the primary storage resource and the secondary storage resource; and
reclaiming storage locations on the secondary storage resource in accordance with reclamation information in the reclamation input output packet communicated between the primary storage resource and the secondary storage resource.
9. The reprogrammable tangible computer readable storage medium of claim 8 , wherein the reclaiming of the storage locations on the secondary storage resource is performed in the same order as reclamation on the primary storage resource with respect to the data updates on the primary storage resource and the corresponding data updates on the secondary storage resource.
10. The reprogrammable tangible computer readable storage medium of claim 8 , wherein the reclamation input output packet includes a reclamation indication flag and reclaim specific meta data.
11. The reprogrammable tangible computer readable storage medium of claim 8 , wherein reclamation on the secondary resource is performed online with a running application unaltered with respect to the reclamation on the secondary side.
12. The reprogrammable tangible computer readable storage medium of claim 8 , wherein the reclamation input output packet is logged in a staging component in the order it is received and is temporarily stored in the buffer.
13. The reprogrammable tangible computer readable storage medium of claim 8 , wherein the reclamation input output packet includes a packet header, an input output header, and a payload that indicates a storage location offset to begin reclamation and an indication of the amount of storage locations to be reclaimed.
14. The reprogrammable tangible computer readable storage medium of claim 8 , wherein the secondary resource decodes the reclamation information in the reclamation packet.
15. A computer system comprising:
a processor coupled to a computer readable storage media and executing computer readable code which causes the computer system to perform operations including:
performing a data update process, including communicating a data update input output packet between a primary storage resource and a secondary storage resource, wherein corresponding data updates in the secondary storage resource are a mirror of data updates in the primary storage resource; and
performing a reclamation process, including:
reclaiming a storage location at the primary storage resource;
generating reclamation information indicating that the storage location has been reclaimed;
storing the reclamation information in a buffer at the primary storage resource;
generating a reclamation input output packet at the primary storage resource based on the reclamation information stored in the buffer that indicates the storage location that has been reclaimed, the reclamation input output packet being separate from the storage location, the data update input output packet, and the buffer;
communicating the reclamation input output packet through the same interface as the data update input output packet, wherein the reclamation input output packet is communicated between the primary storage resource and the secondary storage resource; and
reclaiming storage locations on the secondary storage resource in accordance with reclamation information in the reclamation input output packet communicated between the primary storage resource and the secondary storage resource.
16. The computer system of claim 15 , wherein the reclaiming of the storage locations on the secondary storage resource is performed in the same order as reclamation on the primary storage resource with respect to the data updates on the primary storage resource and the corresponding data updates on the secondary storage resource.
17. The computer system method of claim 15 , wherein the reclamation input output packet includes a reclamation indication flag and reclaim specific meta data.
18. The computer system of claim 15 , wherein reclamation on the secondary resource is performed online with a running application unaltered with respect to the reclamation on the secondary side.
19. The computer system of claim 15 , wherein the reclamation input output packet is logged in a staging component in the order it is received and is temporarily stored in the buffer.
20. The computer system of claim 15 , wherein the secondary resource decodes the reclamation information in the reclamation packet.