oracle license计算

Oracle license的计算是基于CPU core的。用core的数目乘以一个系数core factor就可以得到所需的oracle license的数目。

对于不同的CPU,core factor是不一样的，可以从oracle提供的这张列表中查到 Oracle Processor Core Factor Table。

首线我们要知道CPU的类型，以solaris T5240为例：

1. $>psrinfo -pv
The physical processor has 64 virtual processors (0-63)
UltraSPARC-T2+ (chipid 0, clock 1415 MHz)
The physical processor has 64 virtual processors (64-127)
UltraSPARC-T2+ (chipid 1, clock 1415 MHz)

CPU类型为 UltraSPARC-T2+

2. 查询core factor table得到T2+对应的系数为0.5

3. 查询core的数目

kstat -m cpu_info 可以显示CPU的信息，在linux下可以直接cat /proc/cpuinfo

如果threads比较多，可以用这个脚本来解析

http://blogs.oracle.com/mandalika/entry/solaris_show_me_the_cpu

$>showcpucount
Total number of physical processors: 1
Number of virtual processors: 64
Total number of cores: 8
Number of cores per physical processor: 8
Number of hardware threads (strands or vCPUs) per core: 8
Processor speed: 1415 MHz (1.41 GHz)

** Socket-Core-vCPU mapping **

Physical Processor 1 (chip id: 0):
Core 1 (core id: 260):
vCPU ids: 0 – 7
Core 2 (core id: 267):
vCPU ids: 8 – 15
Core 3 (core id: 274):
vCPU ids: 16 – 23
Core 4 (core id: 281):
vCPU ids: 24 – 31
Core 5 (core id: 288):
vCPU ids: 32 – 39
Core 6 (core id: 295):
vCPU ids: 40 – 47
Core 7 (core id: 302):
vCPU ids: 48 – 55
Core 8 (core id: 309):
vCPU ids: 56 – 63

4. number of cores * core factor = oracle license

8*0.5 =4

再选了几个手头上的机器算了下（1*8 表示1个CPU，每个CPU8个core)：

Vendor	Server Model	CPU	Core Factor	number of cores	Oracle License
SUN	T5120	UltraSPARC-T2	0.5	1*8	4
SUN	T5240	UltraSPARC-T2+	0.5	2*8	8
SUN	T3	SPARC-T3	0.25	1*16	4
SUN	M5000	SPARC64-VII	0.5	8*4	16
HP	DL380	Intel(R) Xeon(R) CPU X5690	0.5	2*6	6