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Based on the incredible amount of interest on VSAN at VMworld the numerous questions regarding system performance and VSAN specific statistics I wanted to share a couple of utilities that can be used to gain visibility into VSAN performance metrics and counters for  what’s going  one of the golden nuggets included with vSphere 5.5 is the packaging and support of the Ruby vSphere Console. The Ruby vSphere Console (RVC) is an interactive command interface based on the Ruby programming language and the RbVmomi binding APIs for vSphere. RVC is now part of both Windows and Linux versions of vCenter Server 5.5. RVC can now be used to manage, monitor, and troubleshoot vSphere. In vSphere 5.5 RVC ships with a number of Virtual SAN (VSAN) built-in functionalities with focus on:

  • VSAN Configuration
  • VSAN Health Monitoring
  • VSAN Disks Statistics
  • VSAN Performance Statistics
  • VSAN Observer

The VSAN Observer is an RVC experimental graphical user interface utility which displays VSAN related statistics from a VSAN Client perspective. The utility can be used to understand VSAN performance characteristics. The utility is intended to provide deeper insights of VSAN performance characteristics and analytics. The VSAN Observer’s user interface displays performance information of the following items:

  • Statistics of the physical disk layer
  • Deep dive physical disks group details
  • CPU Usage Statistics
  • Consumption of VSAN memory pools
  • Physical and In-memory object distribution across VSAN clusters

Below is a brief demo of the VSAN Observer UI and some of the different screens and information it provides.

VSAN Observer Demo

Much more to come on this topic.

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About the Author

Rawlinson Rivera

Rawlinson is a Principal Architect working in the Office of CTO for the Storage and Availability Business Unit at VMware. Focus on defining and communicating VMware’s product vision and strategy, and an active advisor for VMware's product roadmap and portfolio. Responsibilities revolved around connecting VMware's R&D organizations with customers and partners in the field. He specializes in enterprise architectures (private and public clouds), Hyper-converged Infrastructures, business continuity / disaster recovery technologies and solutions including Virtual SAN, vSphere Virtual Volumes, as well as other storage technologies and solutions for OpenStack and Cloud-Native Applications. Rawlinson is a VMware Certified Design Experts (VCDX#86) and main author of the blog punchingclouds.com.