Method and system for recovering data from storage systems

A storage system comprising:

• one or more disk array enclosures, wherein each of the one or more disk array enclosures comprises a plurality of disks;
• and
• at least one controller communicatively coupled to the one or more disk array enclosures, wherein the at least one controller is configured to:
• predict a fault within the storage system comprising one or more disk array enclosures, wherein each of the one or more disk array enclosures comprise a plurality of disks;
• identify a data block going to be affected by occurrence of the predicted fault, wherein the data block is identified within a first disk in the plurality of disks;
• create a hash map table comprising address mapping for each data block within the storage system, wherein address mapping for a data block within the storage system comprises memory address of the data block within a disk and identification of each of:
• the disk, a disk array enclosure comprising the disk, and a disk cluster comprising the disk array enclosure;
• extract data stored in the data block before occurrence of the predicted fault based on the created hash map table;
• and
• transfer the data extracted from the data block to a second disk not going to be affected by occurrence of the predicted fault.

A management server for recovering data in a storage system, the disk management server comprising:

• a processor;
• a memory communicatively coupled to the processor and having instructions stored thereon, causing the processor, on execution to:
• predict a fault within the storage system comprising one or more disk array enclosures, wherein each of the one or more disk array enclosures comprise a plurality of disks;
• identify a data block going to be affected by occurrence of the predicted fault, wherein the data block is identified within a first disk in the plurality of disks;
• create a hash map table comprising address mapping for each data block within the storage system, wherein address mapping for a data block within the storage system comprises memory address of the data block within a disk and identification of each of:
• the disk, a disk array enclosure comprising the disk, and a disk cluster comprising the disk array enclosure;
• extract data stored in the data block before occurrence of the predicted fault based on the created hash map table;
• and
• transfer the data extracted from the data block to a second disk not going to be affected by occurrence of the predicted fault.

A non-transitory computer-readable storage medium having stored thereon, a set of computer-executable instructions causing a storage device comprising one or more processors to perform steps comprising:

• predicting a fault within the storage system comprising one or more disk array enclosures, wherein each of the one or more disk array enclosures comprise a plurality of disks;
• identifying a data block going to be affected by occurrence of the predicted fault, wherein the data block is identified within a first disk in the plurality of disks;
• creating a hash map table comprising address mapping for each data block within the storage system, wherein address mapping for a data block within the storage system comprises memory address of the data block within a disk and identification of each of:
• the disk, a disk array enclosure comprising the disk, and a disk cluster comprising the disk array enclosure;
• extracting data stored in the data block before occurrence of the predicted fault based on the created hash map table;
• and
• transferring the data extracted from the data block to a second disk not going to be affected by occurrence of the predicted fault.