Server User Manual

7-26 AlphaServer GS80/160/320 User’s Guide
7.7 Hard Partitioning
Hard partitioning allows you to run multiple operating systems on one
hardware system. Table 7–6 lists the SCM environment variables used
to create hard partitions. After entering the SCM commands, set the
control panel switch to Off and then to On to create the hard partitions.
Table 7–6 SCM Environment Variables for Hard Partitions
Environment Variable Definition
hp_count
A value from 0 to n indicating the number of hard
partitions to be configured. Partitions are numbered
from 0 to n–1. If this value equals 0 or 1, partitioning
is disabled and the system remains in standard SMP
mode.
hp_qbb_maskx
A bitmask of QBBs to be included in hard partition x.
In Example 7–7, a GS160 system is hard partitioned into 2 partitions with:
•
QBB 0 and QBB 1 in partition 0, and,
•
QBB 2 and QBB 3 in partition 1
Example 7–7 Defining Hard Partitions
SCM_E0> set hp_count 2
SCM_E0> set hp_qbb_mask0 3
SCM_E0> set hp_qbb_mask1 c