Virtualization & Private Cloud Calculators

25 free virtualization & private cloud calculators in Cloud.

Cluster Expansion CalculatorFind when a virtualization cluster hits its utilisation threshold and when to order hardware given procurement lead time.
Host Failure Impact CalculatorQuantify a host failure: VMs affected, capacity lost, post-failure utilisation, restart window and the availability cost.
Hypervisor Consolidation CalculatorWork out how many hypervisor hosts replace a fleet of physical servers, and the capex and power that consolidation changes.
Infrastructure Utilization CalculatorScore CPU, memory, storage and network utilisation together to find stranded capacity and the annual cost of the waste.
OpenShift Cluster Health CalculatorScore OpenShift cluster health from node readiness, pod failures, etcd fsync latency, API latency and degraded operators.
OpenShift Node Capacity CalculatorTurn raw node CPU and memory into allocatable capacity after system-reserved, kube-reserved and the eviction threshold.
OpenShift Pod Density CalculatorCompare the 110 default and 250 maximum pods per node against the 4-pods-per-vCPU guideline and your DaemonSet overhead.
OpenShift Project Quota CalculatorTotal ResourceQuota requests and limits across projects and read the resulting cluster overcommit ratio.
OpenShift Registry Storage CalculatorSize the internal image registry from image streams, tags retained, shared base layers and daily build churn.
OpenShift Route Capacity CalculatorSize the OpenShift ingress router: routes and connections per router pod, TLS handshake rate and connection-limit utilisation.
OpenShift Upgrade Time CalculatorEstimate an OpenShift upgrade window from operator rollout, serial control-plane updates and worker drain and reboot waves.
OpenStack Cinder Storage CalculatorConvert Cinder volume demand into raw backend capacity including Ceph replication, snapshot deltas and a free-space reserve.
OpenStack Keystone Resource CalculatorEstimate Keystone identity load: users, role assignments, service catalog endpoints and token validations per second.
OpenStack Neutron Network CalculatorPlan Neutron tenant networks: usable addresses per subnet, port counts, floating IP demand and VXLAN segment usage.
OpenStack Nova Capacity CalculatorSize Nova compute capacity using the cpu and ram allocation ratios, reserved host memory and a chosen flavor.
OpenStack Swift Storage CalculatorSize a Swift object ring: raw capacity for the replica count, drive count, object count and partitions per drive.
Virtualization Ratio CalculatorMeasure the three ratios that describe a virtual estate: VMs per host, vCPU per core and allocated versus physical memory.
vMotion Network CalculatorSize vMotion bandwidth and estimate live-migration time from VM memory, dirty-page rate and concurrent migration limits.
VMware Cluster Capacity CalculatorTotal up a vSphere cluster's usable CPU and memory after failover reservation and see how many average VMs it carries.
VMware Datastore Capacity CalculatorSize a VMFS or NFS datastore for VMDKs, swap files, snapshot growth and the free space vSphere needs to stay healthy.
VMware HA Capacity CalculatorCheck vSphere HA admission control: how much capacity a percentage or N+1 slot policy reserves and whether restarts actually fit.
VMware Memory Overcommit CalculatorMeasure ESXi memory overcommit and see which reclamation stage it triggers: page sharing, ballooning, compression or host swap.
VMware vCPU Overcommit CalculatorCheck your vCPU to physical CPU ratio against workload-appropriate limits and read it against observed CPU ready time.
VMware VM Density CalculatorWork out how many VMs an ESXi cluster really holds once CPU overcommit, host memory overhead and per-VM VMX overhead are applied.
vSAN Storage CalculatorConvert vSAN raw disk capacity into effective usable capacity after RAID overhead, slack space and dedupe or compression.