Simultaneous state-based cryptographic splitting in a secure storage appliance

A secure storage appliance comprising:

• a plurality of buffers;
• a plurality of resources useable in processing I/O requests;
• a programmable circuit configured to execute program instructions to:
• receive a plurality of I/O requests at the secure storage appliance, each I/O request associated with a block of data and a volume, each volume associated with a plurality of shares stored on a plurality of physical storage devices;
• store a plurality of blocks of data in buffers from among the plurality of buffers, each of the blocks of data associated with one or more of the plurality of I/O requests;
• associate a state with each of the blocks of data, the state selected from a plurality of states associated with processing of an I/O request;
• determine the availability of a resource from among the plurality of resources;
• and
• apply the resource to a block of data in the buffer and updating the state associated with the block of data upon determining that the resource is available.

A method of managing I/O requests in a secure storage appliance, the method including:

• receiving a plurality of I/O requests at the secure storage appliance, each I/O request associated with a block of data and a volume,
• in response to at least one of the plurality of I/O requests, obtaining a block of data from a volume by reconstituting the block of data from a plurality of secondary blocks of data stored in a plurality of shares on a plurality of physical storage devices;
• storing a plurality of blocks of data in buffers of the secure storage appliance, each of the blocks of data associated with one or more of the plurality of I/O requests, the plurality of blocks of data including the block of data obtained from the plurality of shares;
• associating a state with each of the blocks of data, the state selected from a plurality of states associated with processing of an I/O request;
• altering the block of data obtained from the plurality of shares in response to one of the plurality of I/O requests;
• upon determining that a parser driver is available to be used to process the one of the plurality of I/O requests, applying the parser driver to the altered block of data to generate a plurality of altered secondary data blocks and updating the state associated with the block of data.