About performance tuning of optimized duplication and replication for large images
When an optimized duplication job or AIR job is initiated to move a large image, tune the WorkerThreadNumber and FragmentGranularity parameters in the agent.cfg file at the source to improve the performance.
The agent.cfg file resides at the following directory on the MSDP storage server:
UNIX:
<storage_path>/etc/purediskWindows:
<storage_path>\etc\puredisk
A thread pool is used to improve the concurrency. The WorkerThreadNumber parameter defines the number of threads in the thread pool. You can specify values from 0 to 128 for this parameter. The default value is 64. If the value is set to 0, the thread pool is disabled.
The FragmentGranularity parameter defines the number of fragments that one thread should handle. You can specify values from 1 to 1048576 for this parameter. The default value is 8.