Microsoft ups Windows Server 2016 resource limits

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Microsoft ups Windows Server 2016 resource limits

Rams in the terabytes for in-memory databases.

Microsoft has published the scalability limits for its upcoming Windows Server 2016, increasing the physical hardware capacity limits considerably.

Windows Server principal program manager Jeff Woolsey pointed to the need to accommodate massive in-memory databases and demand for more virtual machines per physical server for analytics and machine learning usage as the reason for the raised limits.

The amount of physical memory in Windows Server 2016 Standard and Datacentre Editions is up six-fold. Up to 24 terabytes can be fitted per machine.

Up to 512 physical logical processors are supported in Windows Server 2016, an increase from 320 in Windows Server 2012 R2.

For virtual machines, Windows Server 2016 can allocate up to 16 TB each, a 16-fold increase compared to the current operating system, and 240 virtual processors per VM, up from 64 now.

In comparison, the Linux operating system kernel can directly map up to 64 TB of physical memory.

Although AMD and Intel 64-bit processors support up to 256 TB of physical memory, current electronics design and manufacturing limitations means system RAM capacities above 1 TB to 2 TB are difficult to achieve.

Woolsey also said the Hyper-V hypervisor (hardware abstraction layer for virtualisation) in Windows Server 2016 will come with the Guarded Fabric security feature.

Guarded Fabric protects virtual machines from being stolen on compromised hosts; it uses Bitlocker-encrypted Shielded VMs with virtual trusted platform modules (TPM) that can only run on healthy and approved hosts in cloud infrastructure.

Hyper-V will also provide lightweight Windows Containers for application virtualisation, Woolsey said.

Windows Server 2016 will also provide software-defined storage (SDS) through the Storage Spaces Direct feature for hyper-converged, networked storage clusters, with better support for new hardware such as NVMe and SATA solid state drives.

Windows Server is currently in technical preview and is expected to be released at the end of September this year.

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