HP-UX Virtual Partitions Release Notes (A.05.01)

vPars Release Notes

What’s New in this Version of vPars (A.05.01)

Chapter 1 5

For more information, see the A.05.01 Resources chapter in the HP-UX Virtual Partitions

Administrator’s Guide.

NOTE Dynamic memory migration requires the ﬁrmware revisions indicated in

the HP-UX Virtual Partitions Ordering and Conﬁguration Guide.

• I/O Resources

Managing I/O resources has not changed since A.04.xx. However, some I/O cards may be

unsupported, especially in a mixed HP-UX 11i v2/v3 vPars environment. See the HP-UX

Virtual Partitions Ordering and Conﬁguration Guide for more information.

Mass Storage Stack Formats

Although the new agile view of mass storage (with new hardware path formats and new

persistent device special ﬁles) is supported within the 11.31 OS virtual partitions, the

hardware paths are not supported for use on the vPars command line, and vPars

commands will only use legacy hardware paths in their output. You should 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.

However, wherever the new formats are supported by other 11.31 HP-UX commands and

tools, you can use these new formats within the virtual partitions running 11.31.

Nevertheless, 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.

• CPU Resources

Assigning CPUs has not changed since A.04.xx. Although some new CPU hardware allows

for logical CPUs (LCPUs), CPU resources remain assigned on a core basis.

Hyperthreading (HT ON/OFF)

Hyperthreading (HT) of the new CPU hardware is supported in 11.31 vPars

environments. Hyperthreading can be set to ON or OFF from either the EFI shell using

cpuconfig, or from the vPars Monitor prompt using threads. However, it cannot be set

using the setboot command from within virtual partitions.