HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

Introduction

HP Product Interaction

Chapter 1

• ioscan output

On a PA-RISC system, the ioscan output for vcn and vcs drivers show a value of NO_HW in the S/W State

column. On an Integrity server, these drivers do not appear in the ioscan output. This is normal.

• intctl command

The intctl command is an HP-UX tool that enables management of I/O interrupts among the active

CPUs. It can be installed from the HP-UX Software Pack but should be used only by advanced

administrators for performance tuning.

If you are managing interrupts on vPars systems, please see the section “Managing I/O Interrupts” on

page 266.

• kernel crash dump analyzer

You cannot use a kernel crash dump analyzer on Monitor dumps because vPars Monitor dumps are

structured differently than kernel dumps. For more information on Monitor dumps, see “Monitor Dump

Analysis Tool” on page 315.

• top and other applications that show CPU ID

The CPU ID displayed by the top command and other applications may not be indicative of the actual

CPU index in standalone or nPars mode, nor of the actual hardware path. Within a virtual partition, top

sees only the CPUs assigned to it. Possible top output is shown below; the CPU index is the left-most

column.

CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS

0 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

1 0.00 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

2 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

4 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

7 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

8 0.06 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

--- ---- ----- ----- ----- ----- ----- ----- ----- -----

avg 0.02 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%

• Agile view of Mass Storage

The agile view of mass storage introduced in HP-UX 11i v3 (11.31) is supported with vPars. However, the

lunpath hardware path format and lun hardware path format are not supported for use on the vPars

command line, and vPars commands will only use legacy hardware paths in their output. You must

continue to use the legacy hardware path format that existed in previous vPars releases when using the

vPars commands; for HP-UX 11i v3 (11.31), ioscan’s default output will continue to show the legacy

format.

vPars does not affect the use of the agile view with non-vPars commands. Wherever the new formats are

supported by other HP-UX commands and tools, you can use these new formats within the virtual

partitions running HP-UX 11i v3 (11.31).

vPars does not support disabling legacy mode.

For information on the agile view of mass storage, including the new hardware paths, device special ﬁles,

and legacy mode, see the white paper The Next Generation Mass Storage Stack in the Network and

Systems Management section of http://docs.hp.com, under Storage Area Management.