Zerto’s innovative, hypervisor-based replication is a technology developed to provide a true enterprise class, yet fully virtual-aware disaster recovery solution, to protect virtualized, mission-critical applications. This document outlines the fundamental differences between Zerto’s hypervisor-based replication and other current and legacy technologies.
The current and legacy disaster recovery solutions compared in this document include:
• Zerto Hypervisor-based Replication
• Array-based Replication with and without SRM
• Host / Guest-based Replication
• Snapshot-based Replication
• VMware Site Recovery Manager with vSphere Replication
now the most common data replication technologies and methods essential
to mission-critical BC/DR initiatives have been tied to the physical
environment. Although they do work in the virtual environment, they
aren’t optimized for it. With the introduction of hypervisor-based
replication, Zerto elevates BC/DR up the infrastructure stack where it
belongs: in the virtualization layer.
Benefits of Hypervisor-Based Replication:
protects virtualized applications with the same robust and effective
recovery previously available only with complex and expensive array
based replication solutions. With Zerto you get:
Zerto Offsite Backup in the Cloud
What is Offsite Backup?
Backup is a new paradigm in data protection that combines
hypervisor-based replication with longer retention. This greatly
simplifies data protection for IT organizations. The ability to leverage
the data at the disaster recovery target site or in the cloud for VM
backup eliminates the impact on production workloads.
Why Cloud Backup?
Can mission-critical apps really be protected in the cloud?
Introducing: Cloud Disaster Recovery
enterprises of all sizes are virtualizing their mission-critical
applications, either within their own data center, or with an external
cloud vendor. One key driver is to leverage the flexibility and agility
virtualization offers to increase availability, business continuity and
the cloud becoming more of an option, enterprises of all sizes are
looking for the cloud, be it public, hybrid or private, to become part
of their BC/DR solution. However, these options do not always exist.
Virtualization has created the opportunity, but there is still a
significant technology gap. Mission-critical applications can be
effectively virtualized and managed; however, the corresponding data
cannot be effectively protected in a cloud environment.
Additional Challenges for Enterprises with the Cloud:
Solutions with Zerto Virtual Replication:
Why Rely on Backup Shipping as Your VMware DR Solution?
people think, if you want to protect data in your virtual VMware
environment, your easiest solution is to backup VMware using snapshots
or agents. However, solutions like this, such as Veeam, can slow down
your production environment, and they are difficult to scale.
many of us understand that backup is not disaster recovery. The right
approach to a BC/DR solution is hypervisor-based replication.
With hypervisor-based replication you receive:
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.
Oracle databases are a fundamental component of many organization’s most critical business processes. As such, copies of Oracle data are needed for many IT functions, including local and remote recovery, development and test, reporting, compliance and so on. According to IDC, over 80% of organizations maintain more than ten copies of every Oracle database instance at any given time. Not only does this create a massive infrastructure cost penalty, but the ongoing demand for copies also consumes valuable IT staff time and effort.
For this reason, Copy Data Management (CDM) is fast-becoming a must-have solution for any enterprise Oracle environment. ECX integrates storage array copy processes (snapshots, replication, clones) with Oracle, allowing customers to leverage their existing storage infrastructure to eliminate copy sprawl, while dramatically improving their capabilities to deliver fresh copies of key databases to those functions and business units that demand them. Catalogic supports arrays from Pure Storage, IBM, NetApp and EMC Unity.