iobandctl has been updated.
It came to be able to deal with LVM Volume Groups.
iobandctl is an administration tool to realize disk I/O bandwidth control
using dm-ioband, which is an I/O bandwidth controller implemented as a
device-mapper driver. You can find dm-ioband at:
Changes from previous version:
* LVM support.
o You can specify a Volume Group for the device name on "create" subcommand.
Ioband devices are created per LV involved in the VG.
o "create" subcommand has come not to try to create already existing ioband
devices. This helps you to create an ioband device which will map on to
newly added Logical Volume.
o You can specify Logical Volumes for the device name on "weight" subcommand.
o You can specify Volume Groups or Logical Volumes for the device name on
"group", "showconfig", and "status" subcommand.
o You can specify a Volume Group or a Logical Volume for the device name on
"destroy" subcommand. Now, it is possible to delete each ioband device,
not all ioband devices involved in the specified device.
* Fixed a bug, when resetting ioband device statistics counter.
* iobandctl does not support the "weight-iosize" policy yet, which has been
newly added to dm-ioband v1.0.0.
For more details, please refer to:
dm-devel mailing list