NAME

       cxl-write-labels - write data to the label area on a memdev

SYNOPSIS

       cxl write-labels <mem> [-i <filename>]

DESCRIPTION

       The region label area is a small persistent partition of capacity available on some CXL
       memory devices. The label area is used to and configure or determine the set of memory
       devices participating in different interleave sets. Read data from the input filename, or
       stdin, and write it to the given <mem> device. Note that the device must not be active in
       any region, or actively registered with the nvdimm subsystem. If it is, the kernel will
       not allow write access to the device’s label data area.

OPTIONS

       <memory device(s)>
           A memX device name, or a memdev id number. Restrict the operation to the specified
           memdev(s). The keyword all can be specified to indicate the lack of any restriction.

       -S, --serial
           Rather an a memdev id number, interpret the <memdev> argument(s) as a list of serial
           numbers.

       -s, --size=
           Limit the operation to the given number of bytes. A size of 0 indicates to operate
           over the entire label capacity.

       -O, --offset=
           Begin the operation at the given offset into the label area.

       -v
           Turn on verbose debug messages in the library (if libcxl was built with logging and
           debug enabled).

       -i, --input
           input file

SEE ALSO

       cxl-read-labels(1), cxl-zero-labels(1), CXL-2.0 9.13.2