HP Integrity Virtual Machines 4.3: Installation, Configuration, Administration

A rough estimate of the processor weight calculation is:
(minimum guest cpu entitlement * number of virtual processors) / (100 * number of host
processors)
Guests are expected to start in order of highest weight to lowest. You can adjust the order by
setting the sched_preference attribute (Section 3.2.6). If a guest fails to start for any reason,
the sequence continues with the next guest. For memory placement on a non cell-based system
or cell-based system with all interleaved (ILM) memory configured, the boot order has little
affect.
In general, on these configurations, the largest guests boot first. On cell-based systems with CLM
configured, expected memory placement depends on the calculated weights, the
sched_preference setting and the VM Host memory configuration:
• If sched_preference is not set or set to “cell” and the guest resources fit into one cell,
CLM is used.
• If there is not enough CLM and there is enough ILM, ILM is used.
• If sched_preference is set to “ilm” and there is enough ILM, ILM is used.
• If there is not enough ILM, the memory is allocated from all cells (striped).
• If there is insufficient ILM but the guest resources fit into one cell, CLM is used. Otherwise
the memory is striped.
3.2.10 Specifying Dynamic Memory Parameters
Specifies whether the new virtual machine will use dynamic memory and the values associated
with it by including the following keywords:
• dynamic_memory_control={0|1}
• ram_dyn_type={none|any|driver}
• ram_dyn_min=amount
• ram_dyn_max=amount
• ram_dyn_target_start=amount
• ram_dyn_entitlement=amount
• amr_enable={0|1}
• amr_chunk_size=amount
NOTE: Dynamic memory is supported only on HP-UX guests.
For more information about using dynamic memory for guests, see Section 8.10 (page 159).
3.2.11 Configuration Limits
Table 3-3 lists the configuration limits for Integrity VM Version 4.3.
Table 3-3 Configuration Limits
SupportDescription
min (#pCPUs, Max vCPU)# vCPUs/VM — Maximum (Integrity VM V4.3 Max vCPU
= 16)
20# vCPUs/pCPU — Maximum
256# VMs per VM Host — Maximum
HP-UX limit# pCPUs in VM Host
1 GBMemory per VM — Minimum (11i v2 HP-UX)
1.5 GBMemory per VM — Minimum (11i v3 HP-UX)
56 Creating Virtual Machines