Nexenta High Availability Storage Software Solutions

The MetroHA Business Continuity Solution depend on ATTO intelligent bridges and Fibre Channel HBAs

A stretch cluster is a software defined storage (SDS) business continuity solution configured with host systems located at multiple sites. These sites may be across metropolitan areas or at the same campus or facility maintaining 24/7 uptime access to data with high resiliency. Data centers may be located on different floors of a data center or many kilometers apart. A primary reason that a stretch cluster is installed is for downtime avoidance during a disaster or even during maintenance windows plus in the event of a disaster, disaster recovery to recover any lost data at the primary or secondary site.

Software Defined Storage Topology

The high availability and data mobility that stretch clusters provide make them one of the most reliable and flexible solutions that IT administrators can implement to maintain synchronous copies of data between multiple sites. A stretch cluster also will allow automatic failover/failback between sites to maintain continuous access to data.

Benefits of Stretch Clusters

  • Increased on-site data availability
  • Zero planned and unplanned downtime
  • Keep production sites running non-stop
  • Avoid data loss or loss of access to data in the event of a single-site disaster
  • Provide a high performance medium to migrate virtual machines

ATTO intelligent bridges enable NexentaStor MetroHA to use direct attached SAS storage for long distance connection between data centers with quick deployment and low maintenance. ATTO intelligent bridges and Celerity