Category Archives: White papers

Technical Note: Enabling Continuous Availability in DR Environments

Technical Note: Enabling Continuous Availability in DR Environments

The goal of continuous availability, as stated by Oracle, is to “hide planned maintenance, unplanned outages, and load imbalances of the database.” Oracle has been enhancing its continuous availability capabilities from release to release with technologies like Fast Application Notification (FAN), Transparent Application Failover (TAF), and (as of Oracle Database 18c) Transparent Application Continuity to enable organizations to develop applications without having to deal with failure handling.

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Achieving Continuous Application Availability with Zero Data Loss  as a Service

Achieving Continuous Application Availability with Zero Data Loss as a Service

While some organizations are adopting disaster recovery as a service (DRaaS), many organizations still have their hands tied when it comes to using the hybrid cloud to protect business-critical data and ensure business continuity. Still others are offloading disaster recovery operations to cloud service providers without fully understanding the risks of doing so. The problem is, current DRaaS solutions cannot guarantee zero data loss and continuous availability of their critical applications; once a disaster occurs, data loss is guaranteed—along with protracted recoveries, downtime, and other untenable risks. The good news is that there is now a solution. Axxana’s Phoenix for Oracle on Microsoft Azure raises the bar for DRaaS by making zero data loss and continuous availability the new norm at any distance—and while alleviating the costs and complexity of implementing, staffing, and maintaining a standby DR site.

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Why Disasters Happen

Why Disasters Happen

This research explores the root causes of why disasters happen, and the factors which affect recovery from a disaster. It looks in detail at the problem of loss of Data-in-Flight, and how this affects recovery.

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The Business Impact of Eliminating Loss of Data-in-Flight

The Business Impact of Eliminating Loss of Data-in-Flight

The cost of downtime due to data loss and unplanned outages at Global 2000 companies ranges from 5-8% of revenue. Digital initiatives and the increasing value and importance of data elevates the imperative to address data loss. Organizations should especially focus on vulnerabilities in mission critical systems with a specific emphasis on eliminating the loss of data in-flight. Doing so can cut the cost of downtime in half over a four-year period. This research focuses on how zero loss of data-in-flight leads to certainty of data integrity. This in turn leads to simplified recovery and significantly reduces the chances of disasters.

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Using Axxana’s Phoenix to Converge Continuous Availability and Disaster Recovery in Oracle Applications

Using Axxana’s Phoenix to Converge Continuous Availability and Disaster Recovery in Oracle Applications

Continuous availability and disaster recovery are the two main aspects of business continuity; however, each has different design points as well as different and contradictory requirements. In this short paper we propose a method for using Axxana’s Phoenix to converge continuous availability and disaster recovery solutions into one. Doing so significantly reduces the cost of business continuity by eliminating the need for one complete Oracle installation, including servers, licenses, communication ports, cabling, power, cooling, and so on. That is, instead of three complete Oracle installations, only two are needed.

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Technical Note: Preparing An Image to Upload to Oracle’s Gen 2 Cloud

Technical Note: Preparing An Image to Upload to Oracle’s Gen 2 Cloud

Disaster recovery to the cloud is a very attractive option for organizations that require business continuity in the event of disasters but want to minimize the capital expenditures and operating costs associated with on-premises solutions. Axxana’s Phoenix for Oracle allows organizations to leverage the Oracle Cloud and other cloud environments for disaster recovery, without experiencing the application availability and downtime issues associated with typical hybrid DR solutions. In order to use Axxana’s Phoenix for Oracle in the Oracle Cloud Generation 2 environment, organizations must first upload Axxana’s Recovery Gateway image to the Oracle Cloud Gen 2 environment.

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Disaster Recovery and High Availability in the Hybrid Cloud

Disaster Recovery and High Availability in the Hybrid Cloud

Technical Note: Disaster Recovery and High Availability in the Hybrid Cloud Although many organizations are using a hybrid cloud model for disaster recovery, this model typically cannot deliver high application availability. This drawback is due to the technical constraints of replication in a cloud topology as well as the complexity of writing code for each application to ensure that high-availability solutions address every possible disaster scenario. Axxana engineers recently conducted tests to investigate and develop a solution that simplifies this process and delivers high availability in the hybrid cloud. This technical note provides details of the testing and describes how organizations can use the proposed solution to automate failover and achieve extremely high availability without requiring human intervention or extensive changes to code—and without impacting the application running in the primary site.

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DR in the Cloud – Tech Note August 2018

DR in the Cloud – Tech Note August 2018

Organizations are increasingly moving disaster recovery (DR) to the cloud in order to alleviate the costs and complexity associated with implementing, staffing, and maintaining a standby DR site on their own. The Oracle Cloud allows Oracle Active Data Guard users to create a hybrid DR solution as an alternative to hosting their own standby DR site. In the hybrid model, existing production databases remain on premises, and standby databases used for DR are deployed on the Oracle Cloud. Once the solution is set up, it is transparent to users.

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Disaster Recovery in a Box – Achieving Zero Data Loss in Backup-Only Environments

Disaster Recovery in a Box – Achieving Zero Data Loss in Backup-Only Environments

Organizations that can tolerate application downtime often opt for backup-only disaster recovery because it is less costly and complex than traditional replication solutions. Even so, they may still desire zero-data-loss (ZDL) disaster recovery. Axxana’s DR in a Box™ is the only solution on the market that provides ZDL recovery for Oracle applications when the disaster recovery strategy is based on backups. This whitepaper shows how organizations can use Axxana’s DR in a Box to achieve zero data loss in backup-only disaster recovery environments—without investing in additional sites, storage, or communication lines.

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