With rapidly growing virtualization and hyper-convergence, VSAN has made its place amongst infrastructure architects for designing cost-effective and scalable storage solutions.
VSAN is basically a collection of ports from the set of connected FCS (Fibre Channel Switches), that forms a virtual fabric.
In this structure, we use a portion of the physical storage area network (SAN) as a logical entity to allow isolated traffic within the SAN for more redundant configuration of resources for cases where there is a problem in one logical portion, there is minimum impact on the infrastructure and Disaster recovery for storage availability is achieved.
Administrators generally implement multiple VSANs for more scalability and allowing unused storage with pooled access to virtual machines. They can also specify the number of failure node tolerance one per VM basis.
VSAN is available both in software package and appliance form from trusted vendors like VMware and Cisco. A VSAN software package can be simply downloaded as a package and setup on a virtual machine, and some vendors also provide it as firmware in their appliances.
The goal of implementing VSAN is to cut down computing and storage costs along with eliminating latency in storage access with use of a load balanced setup.
High availability is achieved by storage object replication including VMs, snapshots and VM swap disks in the cluster.
VSAN has many benefits over the traditional SAN architecture, some which are discussed below :
1: Manageability: VSAN software and appliances being a bundled package makes it easy for administrators to manage. As it is installed as a virtual machine on the infrastructure, it is easily accessible and has less components to manages in comparison to the traditional storage infrastructure.
2: Security: Products supporting VSAN architecture are specially designed to support complex and robust environments with a layered structure of resources, thus making it a secure solution.
3: Efficient utilization of infrastructure: As discussed above, VSAN can be deployed in multiple nodes in a clustered environment. For example, VSAN doesn’t use any external storage array and uses server-based disks to create its own shared pool of storage resources thus providing enhanced utilization of the infrastructure components.
4: Technical troubleshooting, upgrades, and maintenance
5: Storage support: VSAN is aimed at supporting almost all kinds of resources like server, disk, flash, and has a wide range of hardware compatibility.
6: Speed: VSAN being fully integrated with the hypervisor kernel makes the I/O more optimized and engages less usage of other resources, unlike traditional storage arrays.
7: Low cost of setup and operation: The availability of software packages and appliances makes implementation of VSAN more budget-friendly as customers now only need to pay for a bundled package and most vendors also provide reliable support post-implementation.
8: Data Protection: This being the most important component and any infrastructure, VSAN products VMware VSphere VSAN allows the administrator to declare the level of data protection they need while provisioning. Also, VSAN has the ability to detect a HDD failure and declares it as “Degraded” with immediately protecting the data into other clusters.
9: Backup & Recovery: VSAN comes with support from various backup & recovery software providers like VMware and EMC.
10: Enterprise-ready solutions: VSAN products being reliable and performance effective has quickly made a large customer base running large enterprise workloads on vSAN and have great reviews in terms of customer experience.
The goal of vSAN architecture is to replace the traditional storage arrays and solutions with more efficient and operation-friendly software and appliances.
SIBERGEN Technologies can assist you in determining your need for vSAN technology. Call us today!