Mixed HP-UX 11i v2/v3 vPars Environments in vPars A.05.xx

Beginning with vPars A.05.01, you can have a mixed HP-UX 11i v2/v3 vPars environment. A mixed HP-UX 11i v2/v3 vPars environment allows you to have a vPars A.05.01 monitor and database that supports both virtual partitions running vPars A.05.01 on HP-UX 11i v3 (11.31) and virtual partitions running vPars A.04.02 or later on HP-UX 11i v2 (11.23).

An example mixed HP-UX 11i v2/v3 vPars environment looks like the following:

Table 3-3 Mixed HP-UX 11i v2/v3 vPars Environment

HP-UX 11iv3 (11.31) running vPars A.05.01	HP-UX 11iv2 (11.23) running vPars A.04.02	HP-UX 11iv2 (11.23) running vPars A.04.03	HP-UX 11iv3 (11.31) running vPars A.05.01	HP-UX 11iv3 (11.31) running vPars A.05.01
vPars A.05.01 Monitor

Mixed HP-UX 11i v2/v3 vPars does not refer to mixing hardware (PA and Integrity) platforms. Additionally, virtual partitions running vPars A.03.xx on HP-UX 11iv1 (11.11) and vPars A.04.01 on HP-UX 11i v2 (11.23) are not supported in a mixed HP-UX 11i v2/v3 vPars environment.




	NOTE: Read the following rules and the table below when running a mixed HP-UX 11i v2/v3 vPars environment. Many of the features of vPars are version-specific. To switch to an environment of only virtual partitions running vPars A.04.xx on HP-UX 11i v2, shut down the A.05.01 vPars Monitor and boot up the A.04.xx vPars Monitor.

Features

The following features work from all virtual partitions:

legacy vPars functions
This includes dynamic CPU migration, except where noted below.
HP-UX functions
All the corresponding HP-UX features associated with an HP-UX 11i release continue to work. Note that, as in a normal OS instance, an 11.31-only feature will not work in an 11.23 OS-instance.
HT OFF
All virtual partitions can boot and run when hyperthreading is disabled (HT is set to OFF).

The following features can be executed only from the vPars-A.05.01/11.31-OS virtual partitions:

creation, removal, and modification of a target virtual partition.
The vparcreate and vparremove operations can only be performed from the vPars A.05.01/11.31-OS virtual partitions; vparmodify operations affecting other virtual partitions can only be performed from the vPars A.05.01/11.31-OS virtual partitions.
Note that this only applies to performing these operations on other virtual partitions. Operations where the source and target virtual partition are the same are always supported, regardless of whether you are in a mixed HP-UX 11i v2/v3 vPars environment or not.
When the flexible administrative capability is ON, setting the vPars A.04.xx/11.23-OS virtual partitions as the only designated-admin virtual partitions is not recommended. If all the designated-admin virtual partitions are vPars A.04.xx/11.23-OS virtual partitions, no partitions will be able to perform vparmodify, vparremove, or vparcreate operations on other partitions.

The following features work only between the vPars-A.05.01/11.31-OS virtual partitions:

dynamic memory migration
In a mixed HP-UX 11i v2/v3 vPars environment, dynamic memory migration is only supported on the vPars versions that support dynamic memory migration. In other words, the source and target virtual partitions must be running vPars A.05.xx.
It is possible to perform add/delete memory operations on virtual partitions running A.04.xx, as long as the target virtual partition is in the down state. Note that the vparmodify command must be executed on a virtual partition running vPars A.05.xx.

The following features are not allowed in a mixed HP-UX 11i v2/v3 vPars environment:

HT ON
Because hyperthreading is an 11.31 feature, when hyperthreading is enabled (HT is ON), only the vPar A.05.01/11.31 virtual partitions will boot; the vPars A.04.xx/11.23 virtual partitions will not boot.

Version Requirements:

Only the vPars A.05.01 Monitor supports a mixed HP-UX 11i v2/v3 vPars environment; therefore, for both 11.31 and 11.23 OS instances to be running, the vPars A.05.01 Monitor must be booted.
Note that this implies there must always be at least one vPars A.05.01 virtual partition in a given mixed HP-UX 11i v2/v3 vPars configuration. The vPars A.05.01 virtual partition need not be up and running. However, when running only vPars A.04.xx virtual partitions on a vPars A.05.01 Monitor, keep in mind the administrative restrictions on the vPars A.04.xx virtual partitions described in this section.
If a vPars A.04.02 Monitor is booted, the vPars A.05.01 virtual partitions will not boot.
The 11.23 OS instances must be running vPars A.04.02 or later; vPars A.04.01 is not supported. The 11.31 OS instances must be running A.05.01 or later. HP-UX 11.11 OS/vPars A.03.xx instances are not supported.
The firmware requirements for the system will follow that of vPars A.05.01.

Feature Summary

The following table highlights the above rules for having a mixed HP-UX 11i v2/v3 vPars environment.

Table 3-4 Mixed HP-UX 11i v2/v3 vPars Environment Feature Summary

Feature	vPars A.05.xx instances	vPars A.04.xx instances	vPars A.03.xx instances
Minimum vPars Version	A.05.01	A.04.02	Not Allowed
vPars Monitor Supports Mixed HP-UX 11i v2/v3 vPars Environment	Yes	No
Dynamic CPU Migration	Supported	Supported
Dynamic Memory Migration	Supported	Not Supported
HT OFF	Supported	Supported
HT ON	Supported	Not Supported
vparcreate, vparremove	Supported	Not Supported
vparmodify on other virtual partitions	Supported	Not Supported

Booting Summary

Because only the vPars A.05.xx Monitor supports a mixed HP-UX 11i v2/v3 vPars environment, and because only HP-UX 11.31 supports HT ON/OFF, the following is true when booting a mixed HP-UX 11i v2/v3 vPars environment:

Table 3-5 Boot Attempts and Result

HT Setting	vPars Monitor Booted	vPars Monitor Boot Result	Virtual Partition(s) Booted	Virtual Partition(s) Boot Result
OFF	A.05.01	OK	A.05.01	OK
	A.05.01	OK	A.04.02	OK
	A.04.02	OK	A.05.01	FAILS
	A.04.02	OK	A.04.02	OK
ON	A.05.01	OK	A.05.01	OK
	A.05.01	OK	A.04.02	FAIL
	A.04.02	FAIL	N/A

Determining the Version in a Mixed HP-UX 11i v2/v3 vPars Environment

In addition to using the normal HP-UX commands to determine the OS version of a specific OS instance, you can use vparstatus -P to determine the vPars version of a specific virtual partition as well as the vPars version of the vPars Monitor which is booted. You cannot determine the OS or vPars version from the summary output of vparstatus. The -P option must be used.

vparstatus output from a virtual partition running vPars A.05.01 in a mixed HP-UX 11i v2/v3 vPars environment:

keira1# vparstatus -P
Current Virtual Partition Version:  A.05.01
Monitor Version:  A.05.01

[Virtual Partition OS Version]
Virtual Partition Name        OS Version  State
============================  ==========  =====
keira1                        B.11.31     Up
keira2                        B.11.23     Up

vparstatus output from a virtual partition running vPars A.04.03 in a mixed HP-UX 11i v2/v3 vPars environment:
keira2# vparstatus -P Commands product information: A.04.03 Monitor product information: A.05.01

Mixed HP-UX 11i v2/v3 vPars Environments in vPars A.05.xx

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Features

Feature Summary

Booting Summary

Determining the Version in a Mixed HP-UX 11i v2/v3 vPars Environment