NAME

       ndctl-disable-dimm - disable one or more idle dimms

SYNOPSIS

       ndctl disable-dimm <dimm> [<options>]

DESCRIPTION

       A generic DIMM device object, named /dev/nmemX, is registered for each memory device
       indicated in the ACPI NFIT table, or other platform NVDIMM resource discovery mechanism.
       The LIBNVDIMM core provides a built-in driver for these DIMM devices. The driver is
       responsible for determining if the DIMM implements a namespace label area, and
       initializing the kernel’s in-memory copy of that label data.

       The kernel performs runtime modifications of that data when namespace provisioning actions
       are taken, and actively blocks userspace from initiating label data changes while the DIMM
       is active in any region. Disabling a DIMM, after all the regions it is a member of have
       been disabled, allows userspace to manually update the label data to be consumed when the
       DIMM is next enabled.

OPTIONS

       <dimm>
           A nmemX device name, or a dimm id number. Restrict the operation to the specified
           dimm(s). The keyword all can be specified to indicate the lack of any restriction,
           however this is the same as not supplying a --dimm option at all.

       -b, --bus=
           A bus id number, or a provider string (e.g. "ACPI.NFIT"). Restrict the operation to
           the specified bus(es). The keyword all can be specified to indicate the lack of any
           restriction, however this is the same as not supplying a --bus option at all.

COPYRIGHT

       Copyright © 2016 - 2022, Intel Corporation. License GPLv2: GNU GPL version 2
       http://gnu.org/licenses/gpl.html. This is free software: you are free to change and
       redistribute it. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       ndctl-enable-dimm(1)