Installation guide

5.6.1.15 Machine Architecture
The machine keyword defines the architecture of the machine on which the
kernel will run. For example:
machine alpha
5.6.1.16 Machine Type
The cpu keyword defines the specific architectural machine type on which
the kernel will run. For example:
cpu "DEC3000_400"
5.6.1.17 System SCS Identifier
The scs_sysid keyword identifies each device on the CI to the SCS
subsystem. The devices supported on the CI are RA class devices.
The argument must be a unique value. During the installation, a value is
automatically included in the configuration file. If a CI is not detected
during installation, the default value 1 is used.
5.6.1.18 Virtual Memory
You can use the following parameters to tune virtual memory:
heappercent
Specifies the percentage of kernel virtual address
space to allocate for use by the heap. The default is
7%.
kentry_zone_size
Specifies the amount of kernel virtual address space
that is available to create kernel virtual address
map entries. The default is 16777216, which is
adequate for most system environments. If the
system panics and issues a message indicating that
the kentry_zone_size parameter value is too
small to support the current workload, increase the
parameter value until it is sufficient for the
workload.
mapentries
Specifies the maximum number of virtual memory
map entries. The default is 200.
maxvas
Specifies the maximum virtual address space for a
user map. The default is 1073741824.
5–46 Configuring the Kernel