Backup server optimization
When you are setting up the Tivoli® Storage Manager server, there are some items to consider to optimize performance.
Consider these items when you set up the Tivoli Storage Manager server. Data Protection
for SAP uses the Tivoli Storage
Manager archive function for all backup activities:
- Dedicated backup server
- A dedicated backup server allows sharing of resources and provides an efficient resource usage.
- CPU power
- For a specific data throughput, the CPU load on the backup server is approximately 60% of the load on the database server. Therefore, backup server CPU power is not as critical as the CPU power of the database server. However, demands on the Tivoli Storage Manager server CPU do increase when several clients access a single Tivoli Storage Manager server.
- Storage hierarchy
- Backup of large data files is to be directed to tape to achieve the highest transfer rates. If disks must be used, use one disk pool per session. Small files such as log files, are to be directed to disk storage first and then moved to tape collectively to avoid excessive tape mounts.
- Parallel sessions
- The Tivoli Storage Manager server allows the use of several tape drives in parallel to store data. This setup can increase overall data throughput. To fully use this feature, two conditions must exist. The corresponding Tivoli Storage Manager node must be allowed the appropriate number of mount points and the device class must be allowed the appropriate mount limits.