Kbase P122201: How to calculate the bandwidth requirements for OpenEdge Replication
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
6/14/2010 |
|
Status: Verified
GOAL:
How to calculate the bandwidth requirements for OpenEdge Replication
GOAL:
How much bandwidth is required to replicate a DB using OpenEdge Replication ?
GOAL:
What is the network bandwidth requirement for OpenEdge replication ?
FACT(s) (Environment):
All Supported Operating Systems
Progress 9.x
OpenEdge 10.x
OpenEdge Replication
FIX:
To calculate the maximum bandwidth use the following formula:
Replication_Bandwidth = 1.5 * BI (writes per second at peak time) * (BI block size) = # bytes / second
It is important to consider what the requirements are during peaks of activity.
Example:
1) Using promon with option R&D and Option 2 (Activity Displays) we can look at the BI log:
Activity Displays Menu
1. Summary
2. Servers
3. Buffer Cache
4. Page Writers
-> 5. BI Log
2) We can then take the writes per second value:
Activity: BI Log
Total Per Min Per Sec Per Tx
Total BI writes 151 906 150.10 0.70
3) Finally we can calculate the Bandwidth:
The default BI block size is 8 KBytes so,
Replication_Bandwidth = 1.5 * 150.10 writes/sec * 8 K Bytes/write = 1,801.2 K Bytes/sec