What is array-based replication?
Array-based replication is a type of data replication, which is the process of copying data via a storage-based snapshot and then replicating that snapshot data to store in additional sites.
What is the difference between array-based and host based replication?
Array-based replication takes place in the storage array and network-based replication requires adding an appliance or intelligent switch. Host-based replication is less expensive than the other two options and works with any type of storage.
What are the three replication strategies?
Data Replication Strategies
- Strategy 1: Log-Based Data Replication.
- Strategy 2: Full Table Data Replication.
- Strategy 3: Key-Based Incremental Data Replication.
What is VMware array-based replication?
You cannot use both replication technologies to protect the same virtual machine….VMware Pages.
| Characteristics | Array-Based Replication | vSphere Replication |
|---|---|---|
| Replication configuration | Replication is configured and managed on the storage array. | Replication is configured and managed in the vSphere Web Client. |
What are the different types of replication?
What are the types of data replication?
- Full-table replication.
- Snapshot replication.
- Merge replication.
- Key-based incremental replication.
- Transactional replication.
- Log-based incremental replication.
What is storage array replication?
Array-based replication is an approach to data backup in which compatible storage arrays use built-in software to automatically copy data from one storage array to another.
What is network based replication?
Network-based data replication uses a device or appliance that sits on the network in the path of the data to manage replication. The data is then copied to a second device. These devices usually have proprietary replication technology but can be used with any host server and storage hardware.
What are the 4 steps of replication?
Step 1: Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be “unzipped” into two single strands.
What is the use of SRM in VMware?
VMware Site Recovery Manager (SRM) provides policy-based management, minimizes downtime in case of disasters via automated orchestration, and enables nondisruptive testing of your disaster recovery plans.
What are the two basic styles of data replication?
Replication environments support two basic types of sites: master sites and snapshot sites.
How does storage replication work?
How Does Storage-Based Replication Work? Storage-based replication involves two storage devices either connected physically or via a storage area network (SAN). There can also be software involved to replicate the data either at the source or from the primary data storage in real-time.
What are replicated in storage array-based remote replication?
What is array-based replication for business continuity?
Array-based replication for business continuity can incorporate the creation of local copies of data within the same array as the source data, as well as the creation of remote copies in an array situated elsewhere.
What is data replication?
An organisation needs to replicate its data for business continuity and operational readiness. But for replication purposes, the movement of data from source to target has only been classified as replication if the process traverses storage arrays.
When should I trigger the replication process?
The best scenario is to trigger the replication process when data is created (i.e., in the source), as opposed to make an additional copy which may reduce or eliminate data replication benefits.
Is data replication a high overhead?
Replicating data can be an important code transformation to increase the level of parallelism, especially in the presence of distributed memories. However, data replication may impose a high overhead in terms of memory usage, and thus the trade-off between performance improvements and memory requirements need to be evaluated.