Vision Lays Out HA and DR Options in Well-Written White Paper
September 22, 2009 Alex Woodie
Remote journaling. XSM. Logical replication. iASPs. Disk-based mirroring. If one thing is certain, it’s that there is no shortage of options for disaster recovery (DR) and high availability (HA) on the IBM Power Systems server. Thankfully, there are experts that can guide you through this technological maze, including the folks at Vision Solutions, who recently published a well-written white paper that takes an in-depth look at the wide spectrum of DR HA options for i OS and AIX environments.
In the new white paper, titled “Next-Generation Disaster Recovery and Availability Technologies for IBM Power Systems,” Vision Solutions takes on the big challenge of comparing and contrasting the various technologies and approaches to DR and HA, including the advantages and limitations of each approach and its impact on recovery point objective (RPO) and recovery time objective (RTO), the two most important and useful metrics in the HA and DR business.
The hard work paid off for Vision, which filled the report with clear descriptions and objective analysis of nearly every DR and HA strategy imaginable. While the company could have been a little more consistent with its choice of terms (which is always a challenge in this field, where everybody seems to have their own ways of describing something), the overall affect achieved by Vision is to provide greater clarity of this important class of products. And Vision’s intelligent use of graphics depicting RPO and RTO more than makes up for any shortcoming in the choice of words.
The result is that this report is a must-read for i OS and AIX professionals looking to improve their DR or HA strategies. And according to Vision director of marketing Bill Rice, it’s also an industry first.
Here’s a quick summary of the paper, in which Vision splits the spectrum of DR and HA in two categories: single and multi-system approaches. Single-system DR technologies and strategies covered in the report include the following:
Multi-System DR and HA strategies and technologies covered in the report include:
The entire white paper can be downloaded (after a short registration process) at Vision’s Web site at www.visionsolutions.com.