{
    "mode": "man",
    "parameter": "xfs_rtcp",
    "section": "8",
    "url": "https://www.chedong.com/phpMan.php/man/xfs_rtcp/8/json",
    "generated": "2026-05-30T07:10:29Z",
    "synopsis": "xfsrtcp [ -e extsize ] [ -p ] source ... target\nxfsrtcp -V",
    "sections": {
        "NAME": {
            "content": "xfsrtcp - XFS realtime copy command\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "xfsrtcp [ -e extsize ] [ -p ] source ... target\nxfsrtcp -V\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "xfsrtcp copies a file to the realtime partition on an XFS filesystem.  If there is more than\none source and target, the final argument (the target) must be a directory which already  ex‐\nists.\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "",
            "subsections": [
                {
                    "name": "-e",
                    "content": "Sets the extent size of the destination realtime file.\n",
                    "flag": "-e"
                },
                {
                    "name": "-p",
                    "content": "destination filesystem. When -p is specified xfsrtcp will pad the destination file to\na  size  which  is  an  even multiple of the filesystem block size.  This is necessary\nsince the realtime file is created using  direct  I/O  and  the  minimum  I/O  is  the\nfilesystem block size.\n",
                    "flag": "-p"
                },
                {
                    "name": "-V",
                    "content": "",
                    "flag": "-V"
                }
            ]
        },
        "SEE ALSO": {
            "content": "xfs(5), mkfs.xfs(8), mount(8).\n",
            "subsections": []
        },
        "CAVEATS": {
            "content": "Currently, realtime partitions are not supported under the Linux version of XFS, and use of a\nrealtime partition WILL CAUSE CORRUPTION on the data partition. As such, this command is made\navailable for curious DEVELOPERS ONLY at this point in time.\n\n\n\nxfsrtcp(8)",
            "subsections": []
        }
    },
    "summary": "xfsrtcp - XFS realtime copy command",
    "flags": [
        {
            "flag": "-e",
            "long": null,
            "arg": null,
            "description": "Sets the extent size of the destination realtime file."
        },
        {
            "flag": "-p",
            "long": null,
            "arg": null,
            "description": "destination filesystem. When -p is specified xfsrtcp will pad the destination file to a size which is an even multiple of the filesystem block size. This is necessary since the realtime file is created using direct I/O and the minimum I/O is the filesystem block size."
        },
        {
            "flag": "-V",
            "long": null,
            "arg": null,
            "description": ""
        }
    ],
    "examples": [],
    "see_also": [
        {
            "name": "xfs",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/xfs/5/json"
        },
        {
            "name": "mkfs.xfs",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/mkfs.xfs/8/json"
        },
        {
            "name": "mount",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/mount/8/json"
        }
    ]
}