SYSTEM AND METHOD FOR USING A MEMORY BUFFER TO STREAM DATA FROM A TAPE TO MULTIPLE CLIENTS

摘要

Embodiments described herein provide systems and methods for streaming data to multiple reading clients. More particularly, embodiments described herein provide systems and methods for using a memory buffer to stream file data from a mounted tape file system volume to multiple reading clients.

主权项

1. A system for providing a network based file system, comprising:
a memory; a processor; a computer readable storage medium storing a set of computer program instructions, the set of computer program instructions comprising instructions executable to:
for a request for a file partially stored in a disk-based cache,initiate a tape streaming session corresponding to the file;allocate a buffer in the memory for the tape streaming session, wherein the buffer is a circular buffer;during the tape streaming session:
store file data in the buffer read from an LTFS volume;restore the file to the disk-based cache from the buffer;reply to read requests for file data of the file from non-lagging network file system interface clients associated with the tape streaming session from the buffer; andreply to read requests for file data of the file from lagging network file system interface clients from the disk-based cache.