Let’s use a typical standalone BPC application server for example:
OS: Windows 2008 server R2
Number of CPU Cores: 20
Memory: 64 GB
Number of work process: 100
If there is no other large application installed on this server, typical size required for your BPC 10 NW application server would be like:
|
Mid-Low Range (GB) |
Mid-High Range (GB) | |
|
OS/Program files/User folder |
20 |
30 |
|
OS Page file |
38.5 | 105.7 |
|
Temp installation files/Patch Upgrade/Transport logs/Etc |
20 |
40 |
|
SAP BPC 10 NW Folder |
20 |
40 |
|
Multiple UJBR backup file/ Transaction data export |
10 |
20 |
|
ST12 Traces/SQL traces: 2MB per trace* (500-1000 traces) |
1 |
2 |
|
Work process traces (high trace level): 30MB per trace * 100 work processes |
3 |
3 |
|
SQLDBC traces: 20MB per trace * (100- 200 traces) |
2 |
4 |
|
Others Programs/Files/Free space |
25 |
50 |
|
Total Size |
139.5 | 294.7 |
For calculation of page file requirement, please refer to document “Virtual Memory Required by SAP System Components”
http://scn.sap.com/docs/DOC-41587
| SAP System components | Virtual Memory Needed | GB |
| Central Instance | 500MB+ 1 to 2 times PHYS_MEMSIZE+ 2.5GB + 250MB Per work process | 92-156 |
| SAP Agent(SMD, SAP Host Agent) | Approx. 300 MB | 0.3 |
| Operating system | 5 to 10% of RAM of physical host, minimum 3 GB | 3.2- 6.4 |
|
MDX Parser (For BPC/BW system) |
250MB per process * 20? | 5 |
|
Third-party applications (backup programs, hardware agents, etc.) |
Depends on third-party application | 2 |
| Total virtual memory needed | Total sum of virtual memory | 102.5 -169.7 |
| Page file size needed | Total virtual memory – RAM | 38.5 – 105.7 |
So from the calculation above, hard drive size requirement for a typical BPC application server is between 140-300 GB. For larger BPC server, you have to increase size of hard drive requirement.
I would recommend go for 500 GB if you have very limited knowledge about your feature need and system maintenance work.
200 – 320 GB hard drive may work well if you know what you need and how to manage your BPC application server.
Fixed Hard Drive Size <200 GB is not recommenced. Cost of hard drive is a relative small percentage in the server, do not make mistake here.