|
In many instances, the "weak link" in data replication can be traced to the Wide Area Network (WAN) that is used to connect different disaster recovery locations. Limited bandwidth, high latency, and packet loss are some of the WAN characteristics that can slow data replication processes to a crawl, or prevent them from happening entirely.
Under normal circumstances the amount of data collected can be easily sent across the WAN link, enabling the replication process to start and end based on defined minimum cycle time. However, during peak workload periods the amount of writes coming into the source device may exceed the WAN link bandwidth. When this occurs, new data is collected until the last cycle has been successfully received on the other end, resulting in extra big cycle times and transfer delays across the WAN. This ultimately causes the replication process to fall behind established Recovery Point Objectives (RPO).
Silver Peak's WAN acceleration solution helps to address this issue by enabling more data to be transferred in less time. NX appliances prevent transfer times from falling behind cycle times and eliminate the need to spend a significant amount of money on WAN bandwidth to accommodate peak workloads. As a result, the Silver Peak solution is essential for enterprises with stringent business continuity objectives.
Real-Time Data Protection
Silver Peak is commonly used to improve the performance and reliability of a wide variety of data replication applications, including:
Silver Peak enables enterprises to achieve the following benefits:
- Meet and exceed Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO) by transferring more information in less time
- Eliminate time and effort spent troubleshooting replication problems
- Increase geographic distances between data centers
- Reduce the TCO of data replication by reducing bandwidth expenditures
|
