Virtualization Technology News and Information
White Papers
RSS
White Papers Search Results
Showing 1 - 6 of 6 white papers, page 1 of 1.
True 15-Minute RTO for Mission-Critical VM Systems with Vembu VMBackup Replication
Vembu Backup & Disaster Recovery (BDR) provides IT with a Disaster Recovery Management (DRM) system capable of meeting even more aggressive RTO and RPO goals than the previous release. For highly active database-driven systems, Vembu VMBackup leverages VMtools and VMware Changed Block Tracking (CBT) to perform incremental backups in 15-minute intervals with minimal impact on query processing. As a result, IT can limit data loss to 15 minutes of processing on active mission critical VMs.

The only way to recover a VM with full functionality and full performance without performing an explicit restore operation is through VM replication. Maintaining a replica VM, however, requires frequent and potentially expensive update processes that involve both explicit backup and implicit restore operations. To enable the extensive use of replication by IT, VMBackup adds critical optimizations to both restore and replication operations that dramatically minimize overhead on ESXi hosts and production VMs to just VM snapshot processing. Specifically, a BDR Backup server running on a VM is able to leverage hot-add SCSI transfer mode to write logical disk and logical disk snapshot files directly to a vSphere datastore, without involving the ESXi host for anything more than creating a VM snapshot.

A key a value proposition for Vembu VMBackup is its ability to directly read and write all backup and restore data directly to and from a datastore snapshot. As a result, Vembu VMBackup offloads all I/O overhead from production VMs and ESXi hosts, which is critical for maintaining an aggressive DRM strategy in a highly active virtual environment. What’s more, the performance of Vembu VMBackup in openBench lab's test environment made it possible to enhance support for a mission-critical OLTP application running on a VM using a combination of incremental backups for backup and replication. As a result, they were able to comply with a 30-minute RPO, restore the VM to a production environment in 5 minutes, and return to full-production level processing of business transactions—850 cTPS—in under 15 minutes.

VMBackup adds a new replica management module that enables an IT administrator to fully manage an initial failover and later finalize failover or failback with consolidation. In addition, BDR backup server simplifies all management functions by eliminating the need to run a separate client module on a BDR backup server, which becomes its own client within the BDR reporting hierarchy.

DR 101 EBook
Disaster Recovery 101: Everything you wanted to know about DR….but were afraid to ask!
Confused about RTOs and RPOs? Fuzzy about failover and failback? Wondering about the advantages of continuous replication over snapshots? Well, you’re in the right place. The Disaster Recovery 101 guide will help you learn about DR from the ground up and assist you in making informed decisions when implementing your DR strategy, enabling you to build a resilient IT infrastructure.

This 101 guide will educate you on topics like:
  • How to evaluate replication technologies
  • Measuring the cost of downtime
  • How to test your Disaster Recovery plan
  • Reasons why backup isn’t Disaster Recovery
  • Tips for leveraging the cloud
  • Mitigating IT threats like ransomware
The Next Generation Clusterless Federation Design in the Cloudistics Cloud Platform
Is there another way to manage your VMs? Yes, the introduction of the Cloudistics Cloud Platform has an innovative approach – non-clustered (or clusterless) federated design.The clusterless federation of the Cloudistics Cloud platform uses categories and tags to characterize computer nodes, migration zones, and storage groups (or blocks). With these benefits: ⦁ Node Limits Are A Thing of the Past. ⦁ Locking limitations are removed. ⦁ Flexibility is Enhanced. ⦁ Ladders of Latency are Removed. ⦁

This paper is written in the context of modern virtualized infrastructures, such as VMware or Nutanix. In such systems, a hypervisor runs on each compute node creating multiple virtual machines (VMs) per compute node. A guest OS runs inside each VM.

Data associated with each VM is stored in one or more virtual disks (vDisks). A virtual disk appears like a local disk, but can be mapped to physical storage in many ways as we will discuss.

Virtualized infrastructures use clustering to provide for non-disruptive VM migration between compute nodes, for load balancing across the nodes, for sharing storage, and for high availability and failover. Clustering is well known and has been used to build
computer systems for a long time. However, in the context of virtualized infrastructures, clustering has a number of significant limitations. Specifically, as we explain below, clusters limit scalability, decrease resource efficiency, hurt performance, reduce flexibility and impair manageability.

In this paper, we will present an innovative alternative architecture that does not have these limitations of clustering. We call our new approach clusterless federation and it is the approach used in the Cloudistics platform.

The rest of this paper is organized as follows. In Section 2, we describe the limitations of clustering and in Section 3, we drive the point home by using the specific example of VMware; other virtualized systems are similar. In Section 4, we present the clusterless federated approach and show how it avoids the limitations of clustering. We summarize in Section 5.

Ensure business continuity & disaster recovery compliance
In this webinar and demo, you will learn how NEW Veeam® Availability Orchestrator includes everything you need to reduce the time, costs and effort associated with planning for and recovering from a disaster to ensure DR compliance and the continuous delivery of production IT services
In this webinar and demo, you will learn how NEW Veeam Availability Orchestrator includes everything you need to reduce the time, costs and effort associated with planning for and recovering from a disaster to ensure DR compliance and the continuous delivery of production IT services, including:
  • Fully prepared, automatically updated DR documentation to satisfy compliance requirements, ready for C-level executive and stakeholder sign off
  • Automated plan testing and readiness checks to ensure recoverability with zero impact on production systems
  • Reliable failover and failback of multi-site IT services in the event of planned or unplanned downtime
  • And more!
How to Build a SANless SQL Server Failover Cluster Instance in Google Cloud Platform
This white paper walks through the steps to build a two-node failover cluster between two instances in the same region, but in different Zones, within the Google Cloud Platform (GCP)
If you are going to host SQL Server on the Google Cloud Platform (GCP) you will want to make sure it is highly available with a SQL Failover Cluster. One of the best and most economical ways to do that is to build a SQL Server Failover Cluster Instance (FCI). In this guide, we will walk through the steps to build a two-node failover cluster between two instances in the same region, but in different Zones, within the GCP.
Understanding Windows Server Cluster Quorum Options
This white paper discusses the key concepts you need to configure a failover clustering environment to protect SQL Server in the cloud.
This white paper discusses the key concepts you need to configure a failover clustering environment to protect SQL Server in the cloud. Understand the options for configuring the cluster Quorum to meet your specific needs. Learn the benefits and key takeaways for providing high availability for SQL Server in a public cloud (AWS, Azure, Google) environment.