HP-UX vPars and Integrity VM V6.3 Administrator Guide

• DLKM operations in the vPar or VM guest.
• Interrupt migrations in the vPar or VM guest and on the VSP.
• Running vPars or VM guests with DIO as Serviceguard nodes or Serviceguard packages.
• Support for HP-UX network providers.
• Support for direct I/O networking functionality with the HP APA product.
8.5.1 Using direct I/O networking
The following commands provide direct I/O networking for vPars and VM guests:
• The hpvmhwmgmt command allows you to:
List direct I/O capable functions on the VSP:
# hpvmhwmgmt -p dio -l
◦
NOTE: This command displays the assignment level.
– function: Function Level Assignment (FLA)
Each function can be added or deleted individually to or from the DIO pool.
Each function can be added or deleted individually to vPars or VM guests.
Each function can be used individually by vPars or VM guests and the VSP.
– device: Device Level Assignment (DLA)
The entire device is added or deleted to or from the DIO pool when one function of
the device is specified.
Each function can be added or deleted individually to vPars or VM guests.
Only one vPar or VM at a time can use functions that are part of the same device.
◦ Add a function to the direct I/O pool:
# hpvmhwmgmt -p dio -a hwpath [-L label]
NOTE: You cannot add a function if it is in use by the VSP or restricted for VSP use.
Labels are optional and are used for offline migration.
◦ Delete a function from the direct I/O pool:
# hpvmhwmgmt -p dio -d hwpath
◦ Modify a label:
# hpvmhwmgmt -p dio -m hwpath -L label
◦ Delete a label:
# hpvmhwmgmt -p dio -m hwpath -L none
NOTE: The hpvmdevmgmt —a, m, d command blocks any attempt to add, modify,
or delete the label attribute.
• The hpvmmodify command allows you to:
Add a direct I/O function to a vPar or VM guest:
# hpvmmodify -P vm -a lan:dio:[b,d,macaddr]:hwpath:hwpath
◦
NOTE: The function must already be in the direct I/O pool.
◦ Delete a direct I/O function from a vPar or VM guest:
128 Creating virtual and direct I/O networks