HP-UX vPars and Integrity VM V6.3 Administrator Guide
3.4 Reserving VSP devices.......................................................................................................40
3.5 Configuring storage space for diagnostic data......................................................................40
3.6 VSP kernel tunables...........................................................................................................41
3.7 Running applications on VSP..............................................................................................41
3.7.1 Recommended applications.........................................................................................41
3.7.2 Applications not recommended...................................................................................42
3.7.3 Applications specific recommendations.........................................................................42
4 Upgrading the VSP from earlier versions of Integrity VM................................43
4.1 Upgrading VSP from Integrity VM V3.x to vPars and Integrity VM V6.3....................................43
4.1.1 Studying the current HP-UX 11i v2 to HP-UX 11i v3 update documentation..........................44
4.1.2 Analyzing HP-UX 11i v2 based Integrity VM server.........................................................45
4.1.2.1 Running the HP-UX msv2v3check tool.....................................................................45
4.1.2.2 Determining HP-UX 11i v3 memory and system disk requirements..............................46
4.1.2.3 Determining version requirements for HP-UX OE and vPars and Integrity VM...............46
4.1.3 Deciding whether to perform a cold-install or an update..................................................47
4.1.4 Upgrading required hardware and firmware upgrades...................................................47
4.1.5 Performing a cold-install or an update...........................................................................47
4.1.6 Verifying vPars or VM after installing layered products....................................................49
4.1.7 Troubleshooting upgrade issues...................................................................................49
4.2 Upgrading earlier versions of the VSP and VM guests to vPars and Integrity VM V6.3...............50
4.3 Rolling back to the earlier installed version of Integrity VM.....................................................52
5 CPU and Memory....................................................................................53
5.1 Configuring CPU resources for VM guests.............................................................................53
5.1.1 Processor virtualization................................................................................................53
5.1.2 vCPU entitlements.......................................................................................................53
5.1.3 Dynamically changing the entitlements..........................................................................54
5.1.4 Transforming VM guest to a vPar..................................................................................54
5.1.5 Hyperthreading for VM guest.......................................................................................54
5.1.6 MCAs on VM guests...................................................................................................54
5.2 Configuring CPU resources for vPars ...................................................................................55
5.2.1 Online CPU migration................................................................................................56
5.2.2 Transforming vPar to a VM guest.................................................................................56
5.2.3 Hyperthreading for vPars............................................................................................56
5.2.4 Handling Local MCA.................................................................................................56
5.3 Reserved resources and resource over-commitment.................................................................57
5.4 Handling faulty CPU.........................................................................................................58
5.5 Configuring memory for VM guests ....................................................................................58
5.5.1 Memory virtualization.................................................................................................58
5.5.2 Overhead memory for VM guests................................................................................58
5.5.3 Dynamic memory......................................................................................................58
5.6 Configuring memory for vPars ...........................................................................................59
5.6.1 Memory allocation....................................................................................................59
5.6.2 Overhead memory for vPar........................................................................................59
5.6.3 Online memory migration..........................................................................................59
5.6.3.1 Base and floating memory..................................................................................60
5.6.3.2 Allowed memory modification operations.............................................................60
5.6.3.3 Guidelines for base and floating memory configuration .........................................60
5.6.3.4 Granularity and memory modification..................................................................61
5.7 Memory allocation and usage for VMs and vPars—Implementation notes.................................62
4 Contents