APPARATUS, SYSTEM, AND METHOD FOR FILE SYSTEM SHARING
First Claim
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1. A computer program product comprising a tangible storage device having a:
- computer readable program, wherein the computer readable program when executed on a computer causes the computer to;
organize a single read-only file system for a plurality of operating systems, each operating system executing on a distinct virtual machine, each virtual machine executing on the computer;
organize a read/write file system for each operating system; and
access the read/write file system and read-only file system for each operating system, wherein the read/write file system and read-only file system appear to each operating system as a single, private file system and each read/write file system comprises at least one pointer to the read-only file system.
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Abstract
An apparatus, system, and method are disclosed for file system sharing. A Read-Only File System (ROFS) organization module organizes a single ROFS for a plurality of operating systems. Each operating system executes on a distinct virtual machine. Each virtual machine executes on a computer. A Read/Write File System (RWFS) organization module organizes an RWFS for each operating system. An access module accesses the RWFS and ROFS for each operating system. The RWFS and ROFS appear to each operating system as a single, private file system. Each RWFS comprises at least one pointer to the ROFS.
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Citations
20 Claims
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1. A computer program product comprising a tangible storage device having a:
- computer readable program, wherein the computer readable program when executed on a computer causes the computer to;
organize a single read-only file system for a plurality of operating systems, each operating system executing on a distinct virtual machine, each virtual machine executing on the computer; organize a read/write file system for each operating system; and access the read/write file system and read-only file system for each operating system, wherein the read/write file system and read-only file system appear to each operating system as a single, private file system and each read/write file system comprises at least one pointer to the read-only file system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- computer readable program, wherein the computer readable program when executed on a computer causes the computer to;
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9. An apparatus comprising:
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a read-only file system organization module configured to organize a single read-only file system for a plurality of operating systems, each operating system executing on a distinct virtual machine, each virtual machine executing on a computer; a read/write file system organization module configured to organize a read/write file system for each operating system; and an access module configured to access the read/write file system and read-only file system for each operating system, wherein the read/write file system and read-only file system appear to each operating system as a single, private file system and each read/write file system comprises at least one pointer to the read-only file system. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a memory module configured to store software instructions and data; a processor module configured to execute the software instructions and process the data, the software instructions comprising a plurality of virtual machines; a plurality of operating systems, each operating system executing on a distinct virtual machine; a hypervisor configured to manage the plurality of operating systems; a read-only file system organization module configured to organize a single read-only file system for the operating systems; a read/write file system organization module configured to organize a read/write file system for each operating system; and the plurality of operating systems, each further comprising an access module configured to access the read/write file system and read-only file system for each operating system, wherein the read/write file system and read-only file system appear to each operating system as a single, private file system and each read/write file system comprises at least one pointer to the read-only file system. - View Dependent Claims (17, 18, 19, 20)
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Specification