System resource usage and tuning considerations
Different backup images achieve different deduplication ratio and can create very different performance bottleneck on the NetBackup server. In general, servers that process many concurrent high deduplication ratio backups, 75% or above, tend to consume high % of CPU and more likely to bottleneck on CPU and network, while low deduplication ratio backups, 60% or below, tend to be I/O bound due to more data segments need to be written to the data store. A clear understanding of your workload and how MSDP consumes the four major system resources, CPU, memory, network and I/O bandwidth is critical for configuring MSDP for optimal performance.