Hardware recommendations

Starting from the next major release, Virtuozzo Hybrid Infrastructure will run on Linux kernel 5.x. To be able to update your cluster without service downtime, your hardware must be supported. Virtuozzo Hybrid Infrastructure with the new kernel works on the same hardware that is recommended for Red Hat Enterprise Linux. Ensure that the hardware you are using or going to use has the required certification for Red Hat Enterprise Linux 9. To learn how to manually check your hardware before an upgrade, refer to Checking hardware compatibility.

Virtuozzo Hybrid Infrastructure works on the same hardware that is recommended for Red Hat Enterprise Linux 7, including AMD EPYC processors: servers, components.
Even though a cluster can be created on top of varied hardware, by using nodes with similar hardware in each node will yield better cluster performance, capacity, and overall balance.
It is not recommended for production to run Virtuozzo Hybrid Infrastructure on top of SAN/NAS hardware that has its own redundancy mechanisms. Doing so may negatively affect performance and data availability.
It is recommended to use UEFI instead of BIOS if this supported by your hardware. This is recommended particularly if you use NVMe drives.
Any cluster infrastructure must be tested extensively before it is deployed to production. Such common points of failure as SSD drives and network adapter bonds must always be thoroughly verified.