What is replication in EMC?

Replication between storage devices provides data redundancy and protects against storage system failures. EMC Unity provides synchronous or asynchronous replication; synchronous replication is only available to physical arrays and can protect LUNs, Consistency Groups, and VMware VMFS datastores.

What is EMC RecoverPoint?

EMC RecoverPoint is a data protection solution that provides local, and remote continuous data protection, allowing for any point-in-time data recovery. In the event of data loss or corruption, data can be recovered across arrays and applications to a consistent state.

How many replication rules can be applied to a cluster in Dell EMC powerstore?

Each protection policy can contain up to one replication rule and up to four snapshot rules.

What is sync replication?

Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so there are multiple, current copies of the data. Synchronous replication is mainly used for high-end transactional applications that need instant failover if the primary node fails.

How does EMC SRDF work?

SRDF logically pairs a device or a group of devices from each array and replicates data from one to the other synchronously or asynchronously. An established pair of devices can be split, so that separate hosts can access the same data independently (maybe for backup), and then be resynchronised.

What is RPA in EMC?

RecoverPoint Appliance (RPA) EMC RecoverPoint is appliance-based – which makes this solution highly scalable. RPA can be a physical appliance (RPA) or a virtualized RPA (vRPA). Physical RPA. RecoverPoint RPAs manage aspects of data protection and replication.

How does EMC RPA work?

The RPA writes the data to the journal volume along with a time stamp and bookmark metadata. The data is then distributed to the local replica in a write-order-consistent manner. This means that if your consistency groups contains many LUNs, all the data being written is write-order consistent.

What is Dell EMC Vplex?

The Dell EMC VPLEX is a network-based, virtualized storage product designed to create high-availability storage between datacenters and to provide the ability to move applications and data between storage environments. VPLEX leverages Dell EMC’s common hardware design employed in the Unity, VNX, and PowerMax/VMAX.

Does PowerStore support file replication?

PowerStore supports asynchronous remote replication for volumes and volume groups. Replication is not supported on file systems or for virtual volumes. To configure replication: Create a remote connection between the source and destination systems.

What is the maximum number of PowerStore T appliance per cluster?

four appliances
PowerStore T supports up to four appliances in a cluster. In this initial release, PowerStore X only supports one appliance.

What are the different types of replication?

Types of data replication

  • Full table replication.
  • Transactional replication.
  • Snapshot replication.
  • Merge replication.
  • Key-based incremental replication.

Which is better synchronous or asynchronous replication?

Asynchronous replication requires substantially less bandwidth than synchronous replication. It is designed to work over long distances. Since the replication process does not have to occur in real time, asynchronous replication can tolerate some degradation in connectivity.

What is SRDF replication?

SRDF software replicates data between two, three, or four arrays located in the same room, on the same campus, or thousands of kilometers apart. SRDF replication modes include: SRDF synchronous (SRDF/S)―SRDF/S replication maintains a real-time copy at arrays that are located within 200 kilometers.

What does SRDF stand for?

Supplemental Retirement and Disability Fund (various organizations) SRDF.

What is RPA in storage?

RecoverPoint provides continuous data protection for storage arrays running on a dedicated appliance (RPA) allowing for the protection of data at both local and remote levels.

What is VPLEX used for?

VPLEX enables IT organizations to build data center infrastructure that is always available and non-disruptive. VPLEX’s unique implementation of distributed cache coherency allows the exact same data to be read/write accessible across two storage systems at the same time.

How does VPLEX work in data center?

Dell EMC VPLEX enables the connectivity to heterogeneous storage arrays providing seamless data mobility and the ability to manage storage provisioned from multiple heterogeneous arrays from a single interface within a data center. Data Mobility and Mirroring are supported across different array types and vendors.