Channel subsystem

7.1 LPAR mode z/VM guest

You can trigger a reevaluation of the I/O subchannels, and you can control the channel path measurement facility.

Channel subsystem rescan
From Linux® in LPAR mode, you can trigger a reevaluation of the I/O subchannels in the channel subsystem.
Channel path measurement
For Linux® in LPAR mode and Linux® on z/VM®, a sysfs attribute controls the channel path measurement facility of the channel subsystem.

Parent topic: System resources