Riverbed Steelhead Adaptive Data Streamlining Modes

• Default This setting is enabled by default and works for most implementations. The default setting: 

1. Provides the most data reduction.
2. Reduces random disk seeks and improves disk throughput by discarding very small data margin segments that are no longer necessary. This Margin Segment Elimination (MSE) process provides network-based disk defragmentation.
3. Writes large page clusters.
4. Monitors the disk write I/O response time to provide more throughput.

• SDR-Adaptive Specify to include the default settings and also.

1. Balances writes and reads.
2. Monitors both read and write disk I/O response and, based on statistical trends, can employ a blend of disk-based and non-disk-based data reduction techniques to enable sustained throughput during periods of high diskintensive workloads. Important: Use caution with this setting, particularly when you are optimizing CIFS or NFS with prepopulation. Please contact Riverbed Technical Support for more information.

• SDR-M Performs data reduction entirely in memory, which prevents the Steelhead appliance from reading and writing to and from the disk. Enabling this option can yield high LAN-side throughput because it eliminates all disk latency. SDR-M is most efficient when used between two identical high-end Steelhead appliance models; for example, 6050 - 6050. When used between two different Steelhead appliance models, the smaller model limits the performance. Important: You cannot use peer data store synchronization with SDR-M.