vSphere Replication
vSphere Replication — это решение для асинхронной репликации на базе гипервизора для vSphere, обеспечивающее защиту данных и аварийное восстановление всех виртуальных машин в среде.
Обзор
Общие сведения о решении vSphere Replication и о том, как оно помогает обеспечить аварийное восстановление виртуальных машин
VMware vSphere Replication — это решение на базе гипервизора для асинхронной репликации виртуальных машин vSphere. Оно полностью интегрировано с VMware vCenter Server и веб-клиентом vSphere. Технология vSphere Replication, обеспечивающая гибкую, надежную и экономичную репликацию, гарантирует защиту данных и аварийное восстановление всех ВМ в вашей среде.
Возможности
Создание гибких конфигураций
vSphere Replication предоставляет гибкие возможности восстановления, обеспечивает согласованность данных приложений и виртуальных машин, а также интегрируется со стеком продуктов VMware. Решение vSphere Replication предоставляет следующие возможности:
Устранение привязки к хранилищу
vSphere Replication — это решение для репликации на базе гипервизора, которое работает на уровне отдельных дисков ВМ (VMDK) и позволяет выполнять репликацию отдельных ВМ между хранилищами разных типов, поддерживаемых vSphere. Поскольку решение vSphere Replication не зависит от базового хранилища, оно работает с различными типами хранилищ, включая VMware vSAN, vSphere Virtual Volumes, традиционное сети SAN, сетевые системы хранения данных (NAS) и хранилища с прямым подключением (DAS). Благодаря этому оно предоставляет следующие возможности:
Снижение нагрузки на полосу пропускания сети
vSphere Replication копирует в резервную среду только измененные данные, чтобы снизить нагрузку на полосу пропускания, повысить эффективность сети и обеспечить более низкие показатели RPO, чем при выполняемом вручную полном копировании системы. vSphere Replication предоставляет следующие возможности:
Репликация ВМ на основе гипервизора
vSphere Replication — это полностью интегрированный компонент VMware vSphere, предоставляющий надежный механизм репликации ВМ на основе гипервизора. Измененные данные на дисках ВМ, работающей в основной среде, отправляются в резервную среду. Там изменения применяются к дискам автономной копии (реплики) ВМ.
Управление репликацией
vSphere Replication состоит из встроенного в vSphere агента и одного или нескольких виртуальных устройств, развернутых с помощью веб-клиента vSphere. Агент отслеживает изменения и отправляет измененные данные с работающей ВМ на устройство vSphere Replication в удаленной среде. Затем это устройство добавляет реплицированные данные в автономную копию (реплику) этой ВМ. Кроме того, виртуальное устройство vSphere Replication выполняет администрирование и мониторинг процесса репликации. Это обеспечивает администраторам визуализацию состояния защиты ВМ и позволяет восстанавливать их всего несколькими щелчками мыши.
Настройка репликации
С помощью веб-клиента vSphere можно легко настроить репликацию до 2 000 ВМ: выберите одну или несколько ВМ, нажмите ВМ правой кнопкой мыши, определите RPO и целевую среду для реплики. После этого vSphere Replication будет регулярно выполнять репликацию данных в соответствии с RPO, гарантируя, что возраст содержимого ВМ не выйдет за пределы, определенные в заданной политике репликации. Значения RPO находятся в диапазоне от 5 минут до 24 часов, и их можно настраивать для каждой ВМ в отдельности.
Синхронизация ВМ и исходные копии
vSphere Replication может выполнить полную начальную синхронизацию исходной ВМ и ее реплики. При необходимости можно разместить в целевой среде исходную копию данных, чтобы свести к минимуму время и ширину полосы пропускания, необходимые для выполнения первой репликации. Исходная копия ВМ состоит из файла диска ВМ, который можно поместить в целевой среде. Исходная копия создается вручную и помещается в среду восстановления с помощью любого механизма, выбранного администратором, например автономного копирования, FTP, образа ISO или клона ВМ.
Интеллектуальная передача данных
После выполнения первоначальной полной синхронизации vSphere Replication передает только измененные данные. Ядро vSphere отслеживает уникальные записи в защищенных ВМ, идентифицируя и реплицируя только те блоки, которые изменились между циклами репликации. Это позволяет сократить сетевой трафик до минимума и обеспечивает низкие показатели RPO.
Репликация, не влияющая на работу ОС и приложений
Процесс репликации ВМ происходит независимо от операционной системы или приложений на ВМ. Он выполняется прозрачно для защищенных ВМ и не требует внесения изменений в их конфигурацию или процесс текущего управления.
Вопросы и ответы
Решение vSphere Replication обеспечивает защиту данных и аварийное восстановление всех ВМ с помощью гибкого и надежного процесса репликации. Оно полностью интегрировано с vCenter Server и веб-клиентом vSphere и обеспечивает асинхронную репликацию ВМ на основе узла. Это функция платформы vSphere, которая интегрирована с Site Recovery Manager.
vSphere Replication настраивается отдельно для каждой ВМ и обеспечивает точный контроль над тем, какие ВМ нужно реплицировать. Репликация может выполняться между основной и резервной средами, между двумя кластерами одной среды, а также между несколькими исходными средами и одной целевой средой, независимо от базового массива хранения.
Полные сведения об архитектуре, развертывании, настройке и администрировании vSphere Replication см. в техническом обзоре vSphere Replication.
Нет. vSphere Replication не выполняет репликацию иерархии снимков ВМ в целевую среду. Снимки помещаются в объединенный файл диска ВМ (VMDK) в целевом месте расположения. Другими словами, ВМ со снимками можно настроить для репликации, но их аварийное восстановление в целевой среде будет происходить без снимков.
Примечание. Функция создания нескольких точек восстановления не входит в vSphere Replication. Поддержка нескольких точек восстановления позволяет администратору восстановить ВМ до последней реплицированной копии в целевой среде, а затем выполнить ее откат до предыдущего момента времени. Когда настроена поддержка нескольких точек восстановления, эти точки восстановления отображаются как снимки ВМ в целевой среде при восстановлении ВМ с помощью vSphere Replication.
vSphere Replication — это полностью интегрированный компонент vSphere, совместимый со многими функциями управления vSphere, включая следующие:
Другие функции vSphere, например распределенное управление энергопотреблением vSphere, требуют специальной настройки для работы с vSphere Replication. Полные сведения о совместимости см. в этом документе.
К основным сценариям использования vSphere Replication относятся следующие:
В частности, решение vSphere Replication можно использовать для репликации одной или нескольких ВМ в следующих случаях:
vSphere Replication
vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere, enabling disaster recovery and data protection for all virtual machines in your environment.
Overview
What is vSphere Replication & How Does it Help in Disaster Recovery in Virtual Machines?
VMware vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere virtual machines. It is fully integrated with VMware vCenter Server and the vSphere Web Client. vSphere Replication delivers flexible, reliable and cost-efficient replication to enable data protection and disaster recovery for all virtual machines in your environment.
Features
Build Flexible Configurations
vSphere Replication provides flexible recovery options, ensures consistent application and virtual machine data, and it integrates with the VMware product stack. vSphere Replications allows you to:
Eliminate Storage Lock-In
vSphere Replication is a hypervisor-based replication solution that operates at the individual virtual machine disk (VMDK) level, allowing replication of individual virtual machines between heterogeneous storage types supported by vSphere. Because vSphere Replication is independent of the underlying storage, it works with a variety of storage types including VMware vSAN, vSphere Virtual Volumes, traditional SAN, network-attached storage (NAS), and direct-attached storage (DAS). This allows you to:
Reduce Network Bandwidth
vSphere Replication copies only changed data to the recovery site to lower bandwidth utilization, improve network efficiency and enable more aggressive RPOs than a manual, full-system copy. With vSphere Replication, you can:
Hypervisor-Based Virtual Machine Replication
vSphere Replication is a deeply integrated VMware vSphere component. It is a robust hypervisor-based virtual machine replication engine. Changed data in virtual machine disks for a running virtual machine at a primary site is sent to a secondary site. There, the changes are applied to the virtual machine disks of the offline copy (replica) of the virtual machine.
Replication Management
vSphere Replication includes an agent built into vSphere and one or more virtual appliances deployed using vSphere Web Client. The agent tracks and sends changed data from a running virtual machine to a vSphere Replication appliance at a remote site; the appliance then adds the replicated data to the offline replica copy for that virtual machine. The vSphere Replication virtual appliance also manages and monitors the replication process. This gives administrators visibility into virtual machine protection status and the ability to recover virtual machines with a few clicks.
Replication Configuration
It’s easy to configure replication for up to 2,000 virtual machines using vSphere Web Client: select one or more virtual machines, right-click on a virtual machine, and define the RPO and destination for its replica. vSphere Replication will then replicate data to meet the RPO at all times, ensuring that virtual machine content never ages past its defined replication policy. RPOs range from 5 minutes to 24 hours and can be configured on a per-virtual machine basis.
Virtual Machine Synchronization and Seed Copies
vSphere Replication can do an initial full synchronization of the source virtual machine and its replica copy. If desired, a seed copy of data can be placed at the destination to minimize the time and bandwidth required for the first replication. A seed copy of a virtual machine consists of a virtual machine disk file that can be positioned at the target location. A seed copy is manually created and placed at the recovery location using any mechanism the administrator chooses, such as offline copying, FTP, an ISO image or a virtual machine clone.
Intelligent Transfers
After the initial full synchronization is complete, vSphere Replication will transfer only changed data. The vSphere kernel tracks unique writes to protected virtual machines, identifying and replicating only those blocks that have changed between replication cycles. This keeps network traffic to a minimum and allows for aggressive RPOs.
Non-Intrusive Replication
The virtual machine replication process is non-intrusive and takes place independent of the operating system or applications in the virtual machine. It is transparent to protected virtual machines and requires no changes to their configuration or ongoing management.
vSphere Replication protects data and enables disaster recover (DR) for all your virtual machines, through flexible and reliable replication. It is fully integrated with vCenter Server and vSphere Web Client, providing host-based, asynchronous replication of virtual machines. It is a feature of the vSphere platform and integrates natively with Site Recovery Manager.
vSphere Replication is configured on a per-VM basis, allowing fine control over which VMs are replicated. This replication can occur from a primary site to a secondary site, between two clusters in a single site, and from multiple source sites to a single target site—regardless of the underlying storage array.
For full details on the architecture, deployment, configuration, and management of vSphere Replication, view the vSphere Replication Technical Overview.
No. vSphere Replication does not replicate a virtual machine snapshot hierarchy at the target site. Snapshots are collapsed into a single aggregate virtual machine disk (VMDK) file at the target location. In other words, a virtual machine with snapshots might be configured for replication, but it will be recovered with no snapshots when it is recovered at the target location.
Note: vSphere Replication does include Multiple Point In Time (MPIT) recovery. MPIT recovery enables an administrator to recover a virtual machine to the latest replicated copy at the target site and then roll it back to a previous point in time. When MPIT recovery is configured, these recovery points appear as virtual machine snapshots at the target location when a virtual machine is recovered using vSphere Replication.
vSphere Replication
vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere, enabling disaster recovery and data protection for all virtual machines in your environment.
Overview
What is vSphere Replication & How Does it Help in Disaster Recovery in Virtual Machines?
VMware vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere virtual machines. It is fully integrated with VMware vCenter Server and the vSphere Web Client. vSphere Replication delivers flexible, reliable and cost-efficient replication to enable data protection and disaster recovery for all virtual machines in your environment.
Features
Build Flexible Configurations
vSphere Replication provides flexible recovery options, ensures consistent application and virtual machine data, and it integrates with the VMware product stack. vSphere Replications allows you to:
Eliminate Storage Lock-In
vSphere Replication is a hypervisor-based replication solution that operates at the individual virtual machine disk (VMDK) level, allowing replication of individual virtual machines between heterogeneous storage types supported by vSphere. Because vSphere Replication is independent of the underlying storage, it works with a variety of storage types including VMware vSAN, vSphere Virtual Volumes, traditional SAN, network-attached storage (NAS), and direct-attached storage (DAS). This allows you to:
Reduce Network Bandwidth
vSphere Replication copies only changed data to the recovery site to lower bandwidth utilization, improve network efficiency and enable more aggressive RPOs than a manual, full-system copy. With vSphere Replication, you can:
Hypervisor-Based Virtual Machine Replication
vSphere Replication is a deeply integrated VMware vSphere component. It is a robust hypervisor-based virtual machine replication engine. Changed data in virtual machine disks for a running virtual machine at a primary site is sent to a secondary site. There, the changes are applied to the virtual machine disks of the offline copy (replica) of the virtual machine.
Replication Management
vSphere Replication includes an agent built into vSphere and one or more virtual appliances deployed using vSphere Web Client. The agent tracks and sends changed data from a running virtual machine to a vSphere Replication appliance at a remote site; the appliance then adds the replicated data to the offline replica copy for that virtual machine. The vSphere Replication virtual appliance also manages and monitors the replication process. This gives administrators visibility into virtual machine protection status and the ability to recover virtual machines with a few clicks.
Replication Configuration
It’s easy to configure replication for up to 2,000 virtual machines using vSphere Web Client: select one or more virtual machines, right-click on a virtual machine, and define the RPO and destination for its replica. vSphere Replication will then replicate data to meet the RPO at all times, ensuring that virtual machine content never ages past its defined replication policy. RPOs range from 5 minutes to 24 hours and can be configured on a per-virtual machine basis.
Virtual Machine Synchronization and Seed Copies
vSphere Replication can do an initial full synchronization of the source virtual machine and its replica copy. If desired, a seed copy of data can be placed at the destination to minimize the time and bandwidth required for the first replication. A seed copy of a virtual machine consists of a virtual machine disk file that can be positioned at the target location. A seed copy is manually created and placed at the recovery location using any mechanism the administrator chooses, such as offline copying, FTP, an ISO image or a virtual machine clone.
Intelligent Transfers
After the initial full synchronization is complete, vSphere Replication will transfer only changed data. The vSphere kernel tracks unique writes to protected virtual machines, identifying and replicating only those blocks that have changed between replication cycles. This keeps network traffic to a minimum and allows for aggressive RPOs.
Non-Intrusive Replication
The virtual machine replication process is non-intrusive and takes place independent of the operating system or applications in the virtual machine. It is transparent to protected virtual machines and requires no changes to their configuration or ongoing management.
vSphere Replication protects data and enables disaster recover (DR) for all your virtual machines, through flexible and reliable replication. It is fully integrated with vCenter Server and vSphere Web Client, providing host-based, asynchronous replication of virtual machines. It is a feature of the vSphere platform and integrates natively with Site Recovery Manager.
vSphere Replication is configured on a per-VM basis, allowing fine control over which VMs are replicated. This replication can occur from a primary site to a secondary site, between two clusters in a single site, and from multiple source sites to a single target site—regardless of the underlying storage array.
For full details on the architecture, deployment, configuration, and management of vSphere Replication, view the vSphere Replication Technical Overview.
No. vSphere Replication does not replicate a virtual machine snapshot hierarchy at the target site. Snapshots are collapsed into a single aggregate virtual machine disk (VMDK) file at the target location. In other words, a virtual machine with snapshots might be configured for replication, but it will be recovered with no snapshots when it is recovered at the target location.
Note: vSphere Replication does include Multiple Point In Time (MPIT) recovery. MPIT recovery enables an administrator to recover a virtual machine to the latest replicated copy at the target site and then roll it back to a previous point in time. When MPIT recovery is configured, these recovery points appear as virtual machine snapshots at the target location when a virtual machine is recovered using vSphere Replication.
vSphere Replication
vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere, enabling disaster recovery and data protection for all virtual machines in your environment.
Overview
What is vSphere Replication & How Does it Help in Disaster Recovery in Virtual Machines?
VMware vSphere Replication is a hypervisor-based, asynchronous replication solution for vSphere virtual machines. It is fully integrated with VMware vCenter Server and the vSphere Web Client. vSphere Replication delivers flexible, reliable and cost-efficient replication to enable data protection and disaster recovery for all virtual machines in your environment.
Features
Build Flexible Configurations
vSphere Replication provides flexible recovery options, ensures consistent application and virtual machine data, and it integrates with the VMware product stack. vSphere Replications allows you to:
Eliminate Storage Lock-In
vSphere Replication is a hypervisor-based replication solution that operates at the individual virtual machine disk (VMDK) level, allowing replication of individual virtual machines between heterogeneous storage types supported by vSphere. Because vSphere Replication is independent of the underlying storage, it works with a variety of storage types including VMware vSAN, vSphere Virtual Volumes, traditional SAN, network-attached storage (NAS), and direct-attached storage (DAS). This allows you to:
Reduce Network Bandwidth
vSphere Replication copies only changed data to the recovery site to lower bandwidth utilization, improve network efficiency and enable more aggressive RPOs than a manual, full-system copy. With vSphere Replication, you can:
Hypervisor-Based Virtual Machine Replication
vSphere Replication is a deeply integrated VMware vSphere component. It is a robust hypervisor-based virtual machine replication engine. Changed data in virtual machine disks for a running virtual machine at a primary site is sent to a secondary site. There, the changes are applied to the virtual machine disks of the offline copy (replica) of the virtual machine.
Replication Management
vSphere Replication includes an agent built into vSphere and one or more virtual appliances deployed using vSphere Web Client. The agent tracks and sends changed data from a running virtual machine to a vSphere Replication appliance at a remote site; the appliance then adds the replicated data to the offline replica copy for that virtual machine. The vSphere Replication virtual appliance also manages and monitors the replication process. This gives administrators visibility into virtual machine protection status and the ability to recover virtual machines with a few clicks.
Replication Configuration
It’s easy to configure replication for up to 2,000 virtual machines using vSphere Web Client: select one or more virtual machines, right-click on a virtual machine, and define the RPO and destination for its replica. vSphere Replication will then replicate data to meet the RPO at all times, ensuring that virtual machine content never ages past its defined replication policy. RPOs range from 5 minutes to 24 hours and can be configured on a per-virtual machine basis.
Virtual Machine Synchronization and Seed Copies
vSphere Replication can do an initial full synchronization of the source virtual machine and its replica copy. If desired, a seed copy of data can be placed at the destination to minimize the time and bandwidth required for the first replication. A seed copy of a virtual machine consists of a virtual machine disk file that can be positioned at the target location. A seed copy is manually created and placed at the recovery location using any mechanism the administrator chooses, such as offline copying, FTP, an ISO image or a virtual machine clone.
Intelligent Transfers
After the initial full synchronization is complete, vSphere Replication will transfer only changed data. The vSphere kernel tracks unique writes to protected virtual machines, identifying and replicating only those blocks that have changed between replication cycles. This keeps network traffic to a minimum and allows for aggressive RPOs.
Non-Intrusive Replication
The virtual machine replication process is non-intrusive and takes place independent of the operating system or applications in the virtual machine. It is transparent to protected virtual machines and requires no changes to their configuration or ongoing management.
vSphere Replication protects data and enables disaster recover (DR) for all your virtual machines, through flexible and reliable replication. It is fully integrated with vCenter Server and vSphere Web Client, providing host-based, asynchronous replication of virtual machines. It is a feature of the vSphere platform and integrates natively with Site Recovery Manager.
vSphere Replication is configured on a per-VM basis, allowing fine control over which VMs are replicated. This replication can occur from a primary site to a secondary site, between two clusters in a single site, and from multiple source sites to a single target site—regardless of the underlying storage array.
For full details on the architecture, deployment, configuration, and management of vSphere Replication, view the vSphere Replication Technical Overview.
No. vSphere Replication does not replicate a virtual machine snapshot hierarchy at the target site. Snapshots are collapsed into a single aggregate virtual machine disk (VMDK) file at the target location. In other words, a virtual machine with snapshots might be configured for replication, but it will be recovered with no snapshots when it is recovered at the target location.
Note: vSphere Replication does include Multiple Point In Time (MPIT) recovery. MPIT recovery enables an administrator to recover a virtual machine to the latest replicated copy at the target site and then roll it back to a previous point in time. When MPIT recovery is configured, these recovery points appear as virtual machine snapshots at the target location when a virtual machine is recovered using vSphere Replication.