Use Cases

Some business challenges that we can help with:

  • Finding it unaffordable to put in place the highly-available, shared storage required to support a VMware vSphere and/or VMware View desktop virtualization project.
  • Experiencing frequent disruptions attributed to storage. For example, outages are required to expand capacity, take backups, resize volumes, swap out disk drives, upgrade equipment and migrate data to different equipment.
  • Applications and virtual machines run slowly. Problems can be traced to disk I/O bottlenecks and programs running out of disk space because 5 to 15 times more workloads are competing for the same storage resources.
  • High risk of losing critical information due to major and mini disasters that damage or impair storage hardware. Such a loss might jeopardize the organization’s ability to continue IT operations and lead to business collapse.
  • Budget cuts impeding rollout of adequate SAN to support server consolidation.

VMware® Use Case Scenarios

Scenario 1:
Midsize (Less than 10 Terabytes) shared storage requirement for VMware Virtual Infrastructure.

You are eager to take advantage of non-disruptive live migrations and VM auto-failover between physical servers, but your direct-attached storage cannot be shared. You have also determined that multiple VMs on the same physical server are generating far more disk I/Os and throughput than its storage equipment can handle. The cost to implement SAN approaches proposed by others exceeds your budget.

Configure DataCore SANsymphony™-V storage virtualization software on a pair of network servers that will be repurposed during the server virtualization project. These “universal storage controllers” form a centrally-managed, virtual storage pool by drawing disk space from their internal drives as well as any arrays externally attached to them. Serve shared storage for high-availability using the built-in synchronous mirroring feature. The software will use the CPUs and memory on the DataCore storage controllers as high-speed cache to handle the I/Os and throughput placed on the SAN by aggregated VMs.
Scenario 2:
Large (greater than 100 Terabytes) VMware vSphere and VMware View configuration split across two sites.

Remote and local users are experiencing frequent outages and very poor application response from their virtual desktops. The problems have been isolated to a) bottlenecks in the back-end disk farms and b) the need to interrupt applications when making storage-related changes. Regulatory pressures have now made disaster recovery a priority.


Place the disk farms under the control of DataCore SANsymphony™-V storage virtualization software running on network servers to front-end the existing SAN. Configure the software for thin provisioning and synchronously mirror virtual disks between the DataCore universal storage controllers. Any storage-related changes going forward can now take place non-disruptively and the software will automatically provision just enough space, just-in-time. In the process, set up the software to automatically replicate virtual disks asynchronously between sites over an IP network to underpin your disaster recovery solution.

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