Parallel processing, Additional resources, Parallel processing additional resources – Google Apps Migration for Lotus Notes Installation & Administration Guide User Manual
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Google Apps Migration for Lotus Notes Installation & Administration Guide
Parallel processing
Each migration server can process 10 users/databases concurrently. Migration performance
depends on a number of factors. For example, the system migrates a maximum of one
message per user/database per second, so:
- 1 server processing 10 users = max 10 messages processed per second. If each of those 10
users has 4,000 messages, the system could migrate those messages in 4,000 seconds, or
1.11 hours (10 users * 4,000 messages = 40,000 messages; 40,000 / 10 messages per
second = 4,000 seconds or 1.11 hours). The estimate here does not include the preparation
time where each Notes message must be converted to MIME before it can be migrated. In
practice you should double the migration estimate to allow for the preparation phase, so in this
example, the 10 users could be completed in approximately 2.22 hours.
Performance may be limited further by a number of other factors including:
•
Message size
•
Physical resources on the migration server like CPU, memory, disk speed, and network
connection speed
•
Physical resources on the mail server like CPU, memory, disk speed, and network
connection speed
•
The overall speed of your network and your connection to external networks
•
The density of traffic outside your network
•
Chosen migration server topology and location or mail files in relation to the migration
server
Additional Resources