Book Image

VMware Virtual SAN Cookbook

By : Jeffrey Taylor
Book Image

VMware Virtual SAN Cookbook

By: Jeffrey Taylor

Overview of this book

VMware Virtual SAN is a radically simple, hypervisor-converged storage, designed and optimized for vSphere virtual infrastructure. VMware introduced the software to help customers store more and more virtual machines. As data centers continue to evolve and grow, managing infrastructure becomes more challenging. Traditional storage solutions like monolithic storage arrays and complex management are often ill-suited to the needs of the modern data center. Software-defined storage solutions, like VMware Virtual SAN, integrate the storage side of the infrastructure with the server side, and can simplify management and improve flexibility. This book is a detailed guide which provides you with the knowledge you need to successfully implement and manage VMware VSAN and deployed infrastructures. You will start with an introduction to VSAN and object storage, before moving on to hardware selection, critical to a successful VSAN deployment. Next, you will discover how to prepare your existing infrastructure to support your VSAN deployment and explore Storage policy-Based Management, including policy changes, maintenance, validation, and troubleshooting VSAN. Finally, the book provides recipes to expedite the resolution process and gather all the information required to pursue a rapid resolution.
Table of Contents (13 chapters)
12
Index

VSAN network considerations

As a distributed storage layer, VSAN is exceedingly dependent on robust and reliable networking. In keeping with this, VSAN requires specific networking configurations and some non-mandatory optimizations that can be put in place to improve VSAN's performance and reliability. This appendix will discuss these considerations.

Uplinks

For redundancy and reliability, the VSAN vmkernel network interface should be backed by at least two network adapters.

For host configurations with comparatively few NICs (such as hosts with the straightforward and common 2x10GbE configuration), the VSAN portgroup should be able to access both interfaces.

If bandwidth management is a consideration (for example, to balance VSAN network demands against management and VM workloads when everything shares two or more NICs), strongly consider implementing Network IO control in the vSphere Distributed Switch. Regardless of the vCenter license level, the activation of a VSAN license automatically...