{
    "mode": "man",
    "parameter": "SG_RDAC",
    "section": "8",
    "url": "https://www.chedong.com/phpMan.php/man/SG_RDAC/8/json",
    "generated": "2026-07-05T21:17:49Z",
    "synopsis": "sgrdac [-6] [-a] [-f=LUN] [-v] [-V] DEVICE",
    "sections": {
        "NAME": {
            "content": "sgrdac - display or modify SCSI RDAC Redundant Controller mode page\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "sgrdac [-6] [-a] [-f=LUN] [-v] [-V] DEVICE\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "sgrdac  displays  or modifies the RDAC controller settings via the Redundant Controller mode\npage (0x2C). When modifying the settings it allows one to transfer the ownership of  individ‐\nual drives to the controller the command was received on.\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "",
            "subsections": [
                {
                    "name": "-6",
                    "content": "fault action (in the absence of this option) is to use the 10 byte cdb variants.\n",
                    "flag": "-6"
                },
                {
                    "name": "-a",
                    "content": "",
                    "flag": "-a"
                },
                {
                    "name": "-f",
                    "content": "supports  'Dual  Active Mode' (aka active/active mode).  LUN is a decimal number which\ncannot exceed 31 when the -6 option is given, otherwise is cannot exceed 255.\n",
                    "flag": "-f"
                },
                {
                    "name": "-v",
                    "content": "",
                    "flag": "-v"
                },
                {
                    "name": "-V",
                    "content": "",
                    "flag": "-V"
                }
            ]
        },
        "EXIT STATUS": {
            "content": "The exit status of sgrdac is 0 when it is successful. Otherwise  see  the  sg3utils(8)  man\npage.\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Written by Hannes Reinecke <hare at suse dot com>, based on sgemctrespass.\n",
            "subsections": []
        },
        "REPORTING BUGS": {
            "content": "Report bugs to <dgilbert at interlog dot com>.\n",
            "subsections": []
        },
        "COPYRIGHT": {
            "content": "Copyright © 2006-2017 Hannes Reinecke, Douglas Gilbert.\nThis software is distributed under the GPL version 2. There is NO warranty; not even for MER‐\nCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n\n\nsg3utils-1.43                              November 2017                                 SGRDAC(8)",
            "subsections": []
        }
    },
    "summary": "sgrdac - display or modify SCSI RDAC Redundant Controller mode page",
    "flags": [
        {
            "flag": "-6",
            "long": null,
            "arg": null,
            "description": "fault action (in the absence of this option) is to use the 10 byte cdb variants."
        },
        {
            "flag": "-a",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "-f",
            "long": null,
            "arg": null,
            "description": "supports 'Dual Active Mode' (aka active/active mode). LUN is a decimal number which cannot exceed 31 when the -6 option is given, otherwise is cannot exceed 255."
        },
        {
            "flag": "-v",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "-V",
            "long": null,
            "arg": null,
            "description": ""
        }
    ],
    "examples": [],
    "see_also": []
}