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Block-level live browsing and private writable snapshots using an ISCSI server

  • US 10,732,885 B2
  • Filed: 05/16/2018
  • Issued: 08/04/2020
  • Est. Priority Date: 02/14/2018
  • Status: Active Grant
First Claim
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1. A system for providing private writable snapshots to user computing devices, the system comprising:

  • a first computing device comprising an Internet Small Computer Systems Interface (ISCSI) service;

    a second computing device in communication with the first computing device via ISCSI protocol; and

    wherein the first computing device using the ISCSI service is configured to;

    receive from the second computing device a first unique identifier and a first request for a first private writable snapshot of a first volume,if a first snapshot of the first volume was not previously created, generate a first snapshot of the first volume,from the first snapshot, generate a sparse file designated a master sparse file which corresponds to the first snapshot,from the master sparse file, generate a private sparse file having the first unique identifier,present the private sparse file as a logical unit number (LUN) to the second computing device; and

    wherein the second computing device is configured to, by mounting the LUN, access the private sparse file for browsing data blocks obtained from the first volume and further for implementing changes to the data blocks obtained from the first volume without changing the first snapshot.

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