XenServer iDR

The above video show how easy it is to configure XenServer iDR and you can also have a Active/Active Sites

XenServer Site Recovery – Provide site-to-site disaster recovery planning and services for virtual environments

  • Simple and Reliable Set Up – Using the step-by-step Site Recovery wizards and StorageLink capabilities customers can quickly initiate remote data replication between arrays and automate the ongoing syncing of primary and secondary VM configurations.
  • Fast Recovery & Failback – Once the data and VM’s have been replicated to the secondary datacenter, Site Recovery provides single click failover for protected applications ensuring key IT services are back up and running quickly.
  • Unlimited Testing  – Site Recovery allows the user to stage frequent tests in an isolated virtual environment without disrupting ongoing operations. This helps to ensure disaster recovery plans remain valid.
This document describes how to configure manual DR for a XenServer Resource Pool http://support.citrix.com/article/CTX117258

Before designing any DR solution you must agree to RPO and RTO with your CEO and CFO. You also need to select the workloads and applications to protect. Consider the following:
Continuous availability is availability’s upper limit—nonstop operation through failures and outages, eliminating downtime and associated data and transaction loss.
High availability means applications remain accessible a very high percentage of the time and recover quickly from localized failures so users experience little or no interruption.
Disaster recoveryis restoration of IT services after a widespread disruption: floods, regional power interruptions or other major disasters.
  • Recovery Time Objective (RTO) – The time by which an application must recover from a failure, or maximum acceptable loss of service
  • Recovery Point Objective (RPO) – The point in time at which an application must recover, or maximum acceptable loss of data and transactions
  • Total Cost of Ownership (TCO) – The direct and indirect costs of achieving the specified RTO and RPO over an application’s lifespan (vs Risk to Business)
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