Dell Integrated Data Protection provides business continuity services through VPLEX and related technologies.
VPLEX delivers enhanced availability, characterized by zero loss of data and near-zero application downtime. VPLEX also delivers enhanced mobility, which is the migration of applications and data between systems without the overhead of work, planning, and downtime that is associated with traditional migrations.
A VPLEX cluster resides in the data path between the converged system servers and storage, where it can create data copies. Copies are created locally or over distance and read and write access is available.
VPLEX enables dynamic workload mobility and continuous availability within and between converged systems over distance. VPLEX also provides simultaneous access to storage devices at two sites through the creation of VPLEX distributed virtual volumes (vVols), which are supported on each side by a VPLEX cluster.
The VPLEX integrated data protection cluster for converged systems uses the following components and technologies:
Dell supports the following VPLEX systems for integrated data protection solutions:
The Cluster Witness observes the state of the clusters and can distinguish between an outage of the intercluster link and a cluster failure. The Cluster Witness uses this information together with the preconfigured detach-rules to guide the clusters to resume or suspend I/O.