QIO Configuration and Management Manual

Configuring the QIO Subsystem
QIO Configuration and Management Manual—424717-008
2-8
Understanding the Configuration File
Configuration File Attributes
You can specify the following attributes in the configuration file:
You can specify the size parameter in bytes, kilobytes (K), or megabytes (M). The
following are equivalent:
Poolsize 67108864
Poolsize 65536K
Poolsize 64M
The following rules apply to the configuration file:

// indicates a comment line.

You can configure QIO in each processor separately. The processor is configured
with the CPU attribute. If no CPU attribute is specified, the defined attributes apply
to all processors, or you can specify attributes to all processors by entering the
attributes into the configuration file before specifying the CPU option. The
specification CPU -1 also makes the attributes global. Attributes specified after the
CPU attribute is specified, will apply only to the processor specified. If no attributes
are set in the configuration file or if no configuration file exists, the default values
for the configuration are used.
BaseAddress
starting address
where starting address is the base address where the
segment is to start. The valid range of addresses is from
0x1000.00000 through 0x4e00000.
CPU # where # (pound sign) specifies the number of the
processor to be configured. If you specify no processor
number or if you specify -1, all the processors are
configured.
SegmentType type where type specifies whether QIO is to run in flat
memory space or system data space:

201 specifies flat memory space and is the default.

202 specifies system data space.
PoolSize size where size specifies the size of the pool in bytes.
The default pool size is 16 MB (16M).
SegmentSize size where size specifies size of the QIO memory segment in
bytes.

The default size of flat memory in QIO space is
512 MB.

The default size of memory in system data space is
128 MB for NonStop S-series and 256 MB for
Integrity NonStop NS-series.