A way of splitting the CPU and memory of a host or DRS cluster into nested containers, each with limits, reservations and shares governing the VMs and sub-pools it holds.
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Terms in this definition
- CPU
The processor that runs a VM's workload (central processing unit); while B-series VMs run under their baseline, they accumulate CPU credits.
- DRS
The Default Rule Set, Microsoft's managed WAF rules that succeed OWASP CRS and defend against XSS, SQL injection and other frequent attacks. Single rules may be overridden or switched off.
- Shares
A relative weighting for dividing a contended resource such as memory, CPU, network bandwidth or disk I/O: double the shares earns double the entitlement. Reservations, by contrast, are guarantees and limits are ceilings.
- Virtual machines
Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.