We learned about vSAN basics and it's terminologies in previous few posts. This short post is to understand the prerequisites for creating a vSAN cluster.
Requirements of a vSAN Cluster
Before you get started with configuring a vSAN on a cluster, ensure that the hardware devices, driver/firmware are as per the VMware Compatibility Guide. Using hardware components, drivers, controllers, and firmware which are not listed in VMware Compatibility Guide might cause unexpected data loss and performance issues.
Verify that you're using the latest version of ESXi hosts.
Ensure that there are at least three ESXi hosts with supported storage configuration available.
Verify that each of the ESXi host has a minimum of 32 GB memory. For large configurations you must have a minimum of 32 GB memory.
Verify that all the storage I/O controllers, drivers, firmware versions are certified and listed in VMWare Compatibility guide.
Verify that the vSAN host must have at least one cache and one capacity device.
Verify that each host is configured with one network adapter for vSAN traffic.
For hybrid configurations, vSAN hosts must have a minimum dedicated bandwidth of 1 GbE.
For all-flash configurations, vSAN hosts must have a minimum bandwidth of 10 GbE.
Verify that you have a valid vSAN license key.
For more details on vSAN Cluster Requirements please refer to this document from VMware.
Keeping it short, lets wrap up this post here.
In the next post we will see how to Set Up a VMkernel Network for vSAN.
Thank you for reading!
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