High Availability

DataCore™ software fulfills business continuity objectives by preventing storage-related maintenance, upgrades, reconfiguration, expansion and failures from disrupting IT operations. The manufacturer-independent software automatically updates identical copies of virtual disks stored on separate drives. Either half of a synchronously mirrored disk may fail or be taken out of service without causing server or application downtime. Transparent failover occursautomatically. Once the equipment is back in service, the software automatically resynchronizes the mirrored set before restoring the original I/O paths. Splitting the disk mirror between different rooms, different floors or different buildings provides considerably higher availability than a top-of-the-line, internally redundant array packaged in a single enclosure. The physical segregation shields one half of the mirror from disruptive firmware upgrades, technician errors, water leaks, power outages and other location-specific risks.

Disaster Recovery
DataCore safeguards against large scale IT outages that disrupt access to critical online storage assets within a metropolitan area. It enables organizations to quickly switch operations to remote contingency locations hundreds or thousands of kilometers away by regularly transmitting disk updates between sites. The software uses standard IP connections to asynchronously replicate between like or unlike storage devices without increasing the load on hosts or slowing down applications.
Snapshots of the replicas maintain the identity of source volumes so that restoration at the remote end is not complicated by different virtual disk assignments. Bidirectional remote replication makes it easy to establish reciprocal arrangements where each side can serve as the recovery location for the other. SANsymphony also supports one-to-many, many-to-one and many-to-many relationships well suited to address central IT operations with smaller remote branches. Advanced Site Recovery features automate much of the controlled cut-over to disaster recovery locations along with the resumption of services at the central IT site.

SAN-wide Features Work Across Unlike and Incompatible Storage Devices:

• Performance Virtual Disk
  Tracks and charts real-time SAN behavior
• Auto-Tiering
  How it works?
• Why I Use DataCore
  Interview with Mark Moroses