{
    "mode": "man",
    "parameter": "thin_delta",
    "section": "8",
    "url": "https://www.chedong.com/phpMan.php/man/thin_delta/8/json",
    "generated": "2026-05-30T07:09:10Z",
    "synopsis": "thindelta [options] {device|file}",
    "sections": {
        "NAME": {
            "content": "thindelta - Print the differences in the mappings between two thin devices.\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "thindelta [options] {device|file}\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "thindelta  allows  you  to  compare the mappings in two thin volumes (snapshots allow common\nblocks between thin volumes).\n\nThis tool cannot be run on live metadata unless the --metadata-snap option is used.\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "",
            "subsections": [
                {
                    "name": "--thin1, --snap1 {natural}",
                    "content": "The numeric identifier for the first thin volume to diff.\n",
                    "long": "--snap1"
                },
                {
                    "name": "--thin2, --snap2 {natural}",
                    "content": "The numeric identifier for the second thin volume to diff.\n",
                    "long": "--snap2"
                },
                {
                    "name": "--metadata-snap [block nr]",
                    "content": "Use a metadata snapshot.\n\nIf you want to get information out of a live pool then you will need to\ntake a metadata snapshot and use this switch.  In order for the information\nto be meaningful, you need to ensure the thin volumes you're examining are\nnot changing (ie, do not activate those thins).\n\n",
                    "long": "--metadata-snap"
                },
                {
                    "name": "--verbose",
                    "content": "Provide extra information on the mappings.\n",
                    "long": "--verbose"
                },
                {
                    "name": "-h, --help",
                    "content": "Print help and exit.\n",
                    "flag": "-h",
                    "long": "--help"
                },
                {
                    "name": "-V, --version",
                    "content": "Output version information and exit.\n",
                    "flag": "-V",
                    "long": "--version"
                }
            ]
        },
        "SEE ALSO": {
            "content": "thindump(8), thinrepair(8), thinrestore(8), thinrmap(8), thinmetadatasize(8)\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <heinzm@redhat.com>\n\n\n\nSystem Manager's Manual                  Device Mapper Tools                           thindelta(8)",
            "subsections": []
        }
    },
    "summary": "thindelta - Print the differences in the mappings between two thin devices.",
    "flags": [
        {
            "flag": "",
            "long": "--snap1",
            "arg": null,
            "description": "The numeric identifier for the first thin volume to diff."
        },
        {
            "flag": "",
            "long": "--snap2",
            "arg": null,
            "description": "The numeric identifier for the second thin volume to diff."
        },
        {
            "flag": "",
            "long": "--metadata-snap",
            "arg": null,
            "description": "Use a metadata snapshot. If you want to get information out of a live pool then you will need to take a metadata snapshot and use this switch. In order for the information to be meaningful, you need to ensure the thin volumes you're examining are not changing (ie, do not activate those thins)."
        },
        {
            "flag": "",
            "long": "--verbose",
            "arg": null,
            "description": "Provide extra information on the mappings."
        },
        {
            "flag": "-h",
            "long": "--help",
            "arg": null,
            "description": "Print help and exit."
        },
        {
            "flag": "-V",
            "long": "--version",
            "arg": null,
            "description": "Output version information and exit."
        }
    ],
    "examples": [],
    "see_also": [
        {
            "name": "thindump",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/thindump/8/json"
        },
        {
            "name": "thinrepair",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/thinrepair/8/json"
        },
        {
            "name": "thinrestore",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/thinrestore/8/json"
        },
        {
            "name": "thinrmap",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/thinrmap/8/json"
        },
        {
            "name": "thinmetadatasize",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/thinmetadatasize/8/json"
        }
    ]
}