NAME

       vdoreadonly - puts a VDO device into read-only mode

SYNOPSIS

       vdoreadonly filename

DESCRIPTION

       vdoreadonly forces an existing VDO device into read-only mode.

       filename  must be the path of the VDODataLV as described in lvmvdo(7).  Since lvchange(8) will only mount
       that as read-only, a writable version of that device must be manually created, as shown  in  the  example
       below.

OPTIONS

       --help Print this help message and exit.

       --version
              Show the version of vdoreadonly.

EXAMPLE

       # lvchange -ay vdo1/vdo0pool_vdata
       # dmsetup table vdo1-vdo0pool_vdata > vdata.table
       # lvchange -an vdo1/vdo0pool_vdata
       # dmsetup create vdo1-vdo0pool_vdata --table "`cat vdata.table`"
       # vdoreadonly /dev/mapper/vdo1-vdo0pool_vdata
       # dmsetup remove vdo1-vdo0pool_vdata

SEE ALSO

       lvmvdo(7), lvchange(8), dmsetup(8)

Red Hat                                            2023-04-14                                     VDOREADONLY(8)