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VMware improves its flash IO performance by about 50 percent

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April 11, 2017

VMware says that it has improved its flash I/O performance by about 50 percent in its latest vSAN version. The company also asserts that it is adding several new feature updates as well.

The new software update is designed to provide users with a virtual SAN by aggregating the locally-attached storage of a cluster of VMware host nodes into a shared block-access resource.

It's the fundamental storage component in hyperconverged infrastructure (HCI) equipment such as Dell EMC’s VxRail and the VMware-supporting version of Nutanix’s HCI.

VMware claimed VSAN 6.6 has a 50 percent higher all-flash IOPS performance per host than the prior version which should help business-critical and next-generation workloads.

To be sure, the next-generation workload improvements includes vSAN for Photon being available in Photon Platform 1.1 and a Docker Volume Driver delivering support for multi-tenancy, policy-based management, snapshots and clones.

VMware added that its newer vSAN 6.6 has support for Intel 3D XPoint NVMe SSDs, and 1.6 TB SSDs used as caching drives.

The company asserts that VSAN v6.6 adds:

  • vSAN encryption. Datastore level encryption in a dedupe/compression efficient method.
  • Local protection for stretched clusters to avoid resync over the cluster connect if a node fails.
  • Unicast networking and removal of multicast to simplify network deployment.
  • ESXi host client (HTML-5) management and monitoring functionality.
  • Enhanced rebalancing.
  • Enhanced repairs, with resync traffic throttling.
  • Maintenance pre-check to alert you to host maintenance mode switchovers.
  • Stretched cluster witness replacement user interface.
  • vSAN Cloud Analytics.
  • API enhancements.
  • vSAN easy install.
  • vSAN config assist / firmware update.
  • Enhanced performance and health monitoring.
  • Previously, encryption was done at a high-level before dedupe and compression were applied to data, and so it rendered it virtually ineffective. Now it works with them.

    Additionally, VMware said its vSAN encryption is hardware-agnostic and now has simplified key management features. It complies with 2-factor authentication (SecurID and CAC) and has a Defense Information Systems Agency-approved Security Technical Information Guide.

    May 5th should see vSAN v6.6 availability, with list pricing starting at $2,495 per CPU, and vSAN for Desktop list prices starting at $50 per user.

    The vSAN QoS capabilities are now available in all vSAN editions. The encryption and enhanced stretched cluster capabilities will only be available in vSAN Enterprise Edition, however.

    Source: VMware.


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