Methods and systems for cache management in storage systems

A non-transitory machine readable medium having stored thereon instructions for performing a method comprising machine executable code which when executed by at least one machine, causes the machine to:

• split a cache storage into a plurality of cache pools, each cache pool comprising storage space that stores a plurality of cache blocks that store data related to an input/output (“I/O”) request;
• receive the I/O request;
• extract a volume identifier and at least one Logical Block Address (LBA) from the I/O request;
• provide the volume identifier and the at least one LBA to a hash function;
• determine, by the hash function, a hash index corresponding to the volume identifier and the at least one LBA, wherein determining the hash index includes:
• determining, using the at least one LBA and a number of stripes in a volume, a hash stripe corresponding to the I/O request:
• assign the I/O request to one of the plurality of cache pools that corresponds to the hash index;
• and
• write, by a processor assigned to the assigned cache pool, data of the I/O request to one or more of the cache blocks associated with the assigned cache pool.

A computing device comprising:

• a memory containing non-transitory machine readable medium comprising machine executable code having stored thereon instructions;
• and
• a processor coupled to the memory, the processor configured to execute the machine executable code to cause the processor to:
• split a cache storage into a plurality of cache pools, each cache pool comprising storage space that stores a plurality of cache blocks that store data related to an input/output (“I/O”) request;
• receive the I/O request;
• extract a volume identifier and at least one Logical Block Address (LBA) from the I/O request;
• provide the volume identifier and the at least one LBA to a hash function;
• determine, by the hash function, a hash index corresponding to the volume identifier and the at least one LBA, wherein determining the hash index includes:
• determining, using the at least one LBA and a number of stripes in a volume, a hash stripe corresponding to the I/O request;
• assign the I/O request to one of the plurality of cache pools that corresponds to the hash index;
• and
• write, by a processor assigned to the assigned cache pool, data of the I/O request to one or more of the cache blocks associated with the assigned cache pool.