daxctl-offline-memory - Man Page

daxctl offline-memory <dax0.0> [<dax1.0>...<daxY.Z>] [<options>]

• Reconfigure dax0.0 to system-ram mode

# daxctl reconfigure-device --mode=system-ram --human dax0.0
{
  "chardev":"dax0.0",
  "size":"7.87 GiB (8.45 GB)",
  "target_node":2,
  "mode":"system-ram"
}

• Offline the memory

# daxctl offline-memory dax0.0
dax0.0: 62 sections offlined
offlined memory for 1 device

Offline the memory sections associated with a device that has been converted to the system-ram mode. If one or more blocks are already offline, attempt to offline the remaining blocks. If all blocks were already offline, print a message and return success without actually doing anything.

This is complementary to the daxctl-online-memory command, and may be used when it is wished to offline the memory sections, but not convert the device back to devdax mode.

-r,  --region=

Restrict the operation to devices belonging to the specified region(s). A device-dax region is a contiguous range of memory that hosts one or more /dev/daxX.Y devices, where X is the region id and Y is the device instance id.

-u,  --human

By default the command will output machine-friendly raw-integer data. Instead, with this flag, numbers representing storage size will be formatted as human readable strings with units, other fields are converted to hexadecimal strings.

-v,  --verbose

Emit more debug messages

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.

daxctl-reconfigure-device(1),daxctl-online-memory[1]