在每个计算节点上执行此过程，以在核心级别更改 CPU 和内存资源分配。
该工具进行以下更改：
自动检测根域。
计算所有域的最小和最大资源量，使您仅能够选择有效的数量。
根据您的核心分配，显示可行的内存容量供您选择。
根据您的选择修改域资源。
（如果需要）停止非主域。
（如果需要）重新引导具有新资源的主域。
（如果需要）初启具有新资源的非主域。
在此示例中，将 6 个核心和 512 GB 内存从专用域 ssccn3-dom1 移动到另一专用域 primary。
下表显示了分配规划（请参见Plan CPU and Memory Allocations）。
|
如果存在任何非活动域，则该工具将无法继续运行。
出现提示时进行响应。按 Enter 键以选择默认值。
# /opt/oracle.supercluster/bin/osc-setcoremem
osc-setcoremem
v2.0 built on Aug 27 2015 23:09:35
Current Configuration: SuperCluster Fully-Populated M6-32 Base
+----------------------------------+-------+--------+-----------+--- MINIMUM ----+
| DOMAIN | CORES | MEM GB | TYPE | CORES | MEM GB |
+----------------------------------+-------+--------+-----------+-------+--------+
| primary | 12 | 1024 | Dedicated | 2 | 32 |
| ssccn3-dom1 | 36 | 3072 | Dedicated | 2 | 32 |
| ssccn3-dom2 | 1 | 16 | Root | 1 | 16 |
| ssccn3-dom3 | 2 | 32 | Root | 2 | 32 |
+----------------------------------+-------+--------+-----------+-------+--------+
| unallocated or parked | 45 | 4048 | -- | -- | -- |
+---------------------------------+-------+--------+-----------+-------+--------+
[Note] Following domains will be skipped in this session.
Root Domains
------------
ssccn3-dom2
ssccn3-dom3
CPU allocation preference:
1. Socket level
2. Core level
In case of Socket level granularity, proportional memory capacity is
automatically selected for you.
Choose Socket or Core level [S or C] C
Step 1 of 2: Core Count
primary : specify number of cores [min: 2, max: 46. default: 12] : 18
you chose [18] cores for primary domain
ssccn3-dom1 : specify number of cores [min: 2, max: 30. default: 2] : 30
you chose [30] cores for ssccn3-dom1 domain
Configuration In Progress After Core Count Selection:
+----------------------------------+-------+--------+-----------+--- MINIMUM ----+
| DOMAIN | CORES | MEM GB | TYPE | CORES | MEM GB |
+---------------------------------+-------+--------+-----------+-------+--------+
| primary | 18 | 1024 | Dedicated | 2 | 96 |
| ssccn3-dom1 | 30 | 3072 | Dedicated | 2 | 128 |
| *ssccn3-dom2 | 1 | 16 | Root | 1 | 16 |
| *ssccn3-dom3 | 2 | 32 | Root | 2 | 32 |
+----------------------------------+-------+--------+-----------+-------+--------+
| unallocated or parked | 45 | 4048 | -- | -- | -- |
+---------------------------------+-------+--------+-----------+-------+--------+
Step 2 of 2: Memory Capacity
(must be 16 GB aligned)
primary: specify memory capacity in GB [min: 96, max: 2016. default: 2016]: 1536
you chose [1536 GB] memory for primary domain
ssccn3-dom1: specify memory capacity in GB [min: 128, max: 2560. default: 2560]: 2560
you chose [2560 GB] memory for ssccn3-dom1 domain
Configuration In progress After Memory Capacity Selection:
+---------------------------------+-------+--------+-----------+--- MINIMUM ----+
| DOMAIN | CORES | MEM GB | TYPE | CORES | MEM GB |
+---------------------------------+-------+--------+-----------+-------+--------+
| primary | 18 | 1536 | Dedicated | 2 | 96 |
| ssccn3-dom1 | 30 | 2560 | Dedicated | 2 | 128 |
| *ssccn3-dom2 | 1 | 16 | Root | 1 | 16 |
| *ssccn3-dom3 | 2 | 32 | Root | 2 | 32 |
+---------------------------------+-------+--------+-----------+-------+--------+
| unallocated or parked | 45 | 4048 | -- | -- | -- |
+---------------------------------+-------+--------+-----------+-------+--------+
Following domains will be stopped and restarted:
ssccn3-dom1
This configuration requires rebooting the control domain.
Do you want to proceed? Y/N : y
IMPORTANT NOTE:
+- -+
| After the reboot, osc-setcoremem attempts to complete CPU, memory re-configuration. |
| Please check syslog and the state of all domains before using the system. |
| eg., dmesg | grep osc-setcoremem ; ldm list | grep -v active ; date |
+- -+
All activity is being recorded in log file:
/opt/oracle.supercluster/osc-setcoremem/log/osc-setcoremem_activity_08-28-2015_15:59:31.log
Please wait while osc-setcoremem is setting up the new CPU, memory configuration.
It may take a while. Be patient and do not interrupt.
0% 10 20 30 40 50 60 70 80 90 100%
|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
*=====*=====*=====*=====*=====*=====*=====*=====*=====*=====*
Broadcast Message from root (pts/1) on etc5mdbadm0301 Fri Aug 28 16:03:13...
THE SYSTEM etc5mdbadm0301 IS BEING SHUT DOWN NOW ! ! !
Log off now or risk your files being damaged
Task complete with no errors.
#
可以通过多种方式验证资源分配并检查可能的 osc-setcoremem 错误：
示例：
# dmesg | grep osc-setcoremem Aug 28 16:08:56 etc5mdbadm0301 root[1913]: [ID 702911 user.alert] osc-setcoremem: core, memory re-configuration complete. system can be used for regular work. # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL NORM UPTIME primary active -n-cv- UART 144 1572096M 0.1% 0.1% 5m ssccn3-dom1 active -n---- 5001 240 2620928M 1.3% 1.3% 2m ssccn3-dom2 active -n---- 5002 8 16G 0.1% 0.1% 3d 16m ssccn3-dom3 active -n--v- 5003 16 32G 0.1% 0.1% 3d 16m