HP-UX Virtual Partitions Administrator's Guide (includes A.03.05 and A.04.05)

2 How vPars and its Components Work
This chapter covers:
• Partitioning Using vPars
• vPars Monitor and vPars Partition Database
• vPars Boot Sequence
• EFI and Integrity Notes
• Virtual Consoles and Logs
• Security
Partitioning Using vPars
To understand how vPars works, compare it to a server not using vPars. Figure 2-1 shows a
4-way HP-UX server. Without vPars, all hardware resources are dedicated to one instance of
HP-UX and the applications that are running on this one instance.
Figure 2-1 Server without vPars
Processor
0
Host PCI Bridge
4
SCSI
0/0
6.0
6.0
LAN
1/0
Memory
6
Host PCI Bridge
5
Processor
1
Processor
2
Processor
3
SCSI
0/0
LAN
1/0
Figure 2-2 shows the software stack where all applications run on top of the single OS instance:
Partitioning Using vPars 29