VMware announced VSAN 6.2 with vSphere 6.0 Update 2. With VSAN 6.2 VMware simplified the configuration of VSAN Cluster using VSAN Configuration wizard. Using VSAN Configuration Wizard VSAN Cluster can be deployed in few clicks. Configuration wizard will check all the necessary configuration related to network and disk and prompt in case of any issues. In this post, I will be covering the process to create a VSAN Cluster using configuration wizard.
Procedure to deploy VSAN Cluster
Login to vSphere Web Client. Click on Cluster –> Manage –> Settings –> General. Click on Configure.Select Disk Claiming option to Automatic / Manual depending on your requirement. As we are deploying a simple VSAN Cluster, Choose Do not configure under Fault Domain and Stretched cluster.You should have SAN Traffic enabled on port group on all the host participating in VSAN Cluster.Mark the disks connected to hosts for Cache Tier or Capacity Tier. Click Next.Click on Finish.
This conclude the deployment of VSAN Cluster using VSAN Configuration wizard in VSAN 6.2. I hope this is informative for you. Thanks for reading !!!. Be social and share it in social media, if you feel worth sharing it.
With the release of vSphere 6.0 U2, VMware release VSAN 6.2. Virtual SAN 6.2 introduces the following new features and enhancements :
- Deduplication and compression. Virtual SAN 6.2 supports deduplication and compression to eliminate duplicate data. This technique reduces the total storage space required to meet your needs. When you enable deduplication and compression on a Virtual SAN cluster, redundant copies of data in a particular disk group are reduced to single copy. Deduplication and compression are available as a cluster-wide setting on all-flash clusters.
- RAID 5 and RAID 6 erasure coding. Virtual SAN 6.2 supports both RAID 5 and RAID 6 erasure coding to reduce the storage space required to protect your data. RAID 5 and RAID 6 are available as a policy attribute for VMs in all-flash clusters. You can use RAID 5 in clusters with at least four fault domains, and RAID 6 in clusters with at least six fault domains.
- Software checksum. Virtual SAN 6.2 supports software-based checksum on hybrid and all-flash clusters. The software checksum policy attribute is enabled by default on all objects in the Virtual SAN cluster.
- New on-disk format. Virtual SAN 6.2 supports upgrades to new on-disk virtual file format 3.0 through the vSphere Web Client. This file system provides support for new features in the Virtual SAN cluster. On-disk format version 3.0 is based on an internal 4K block size technology, which provides improved efficiency, but can result in reduced performance if the guest operating system I/Os are not 4K aligned.
- IOPS limits. Virtual SAN supports IOPS limits to restrict the number of I/O (read/write) operations per second for a specified object. When the number of read/write operations reaches the IOPS limit, those operations are delayed until the current second expires. The IOPS limit is a policy attribute that you can apply to any Virtual SAN object, including VMDK, namespace, and so on.
- IPv6 Support. Virtual SAN supports IPv4 or IPv6 addressing.
- Space reporting. The Virtual SAN 6.2 Capacity monitor displays information about the Virtual SAN datastore, including used space and free space, and provides a breakdown of capacity usage by different object types or data types.
- Health service. Virtual SAN 6.2 includes new health checks that help you monitor the cluster and enable you to diagnose and fix problems with the cluster. If the Virtual SAN health service detects health issues, it triggers vCenter events and alarms.
- Performance service. Virtual SAN 6.2 includes performance service monitors with cluster-level, host-level, VM-level, and disk-level statistics. The performance service collects and analyzes performance statistics and displays the data in a graphical format. You can use the performance charts to manage your workload and determine the root cause of problems.
- Write-through in-memory cache. Virtual SAN 6.2 improves virtual machine performance by using a host resident write-through read cache. This caching algorithm reduces read I/O latency and reduces Virtual SAN CPU and network usage.
The table below shows you the new features of 6.2 together with the existing features of 6.1.
I hope this is informative for you. Thanks for reading !!!. Be social and share it in social media, if you feel worth sharing it.