VMware Fault Tolerance
E812214
VMware Fault Tolerance is a high-availability feature that provides continuous, zero-downtime protection for virtual machines by running a live shadow instance that can instantly take over if the primary fails.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
high-availability feature
ⓘ
virtualization technology feature ⓘ |
| belongsTo | VMware availability and resiliency features ⓘ |
| comparedWith | VMware High Availability restarts VMs instead of running a live shadow ⓘ |
| configuredIn |
vSphere Client
NERFINISHED
ⓘ
vSphere Web Client NERFINISHED ⓘ |
| creates | secondary virtual machine on a different host ⓘ |
| developedBy | VMware NERFINISHED ⓘ |
| differsFrom | VMware High Availability NERFINISHED ⓘ |
| doesNotProtectAgainst |
application-level logical corruption
ⓘ
guest operating system failures inside the VM ⓘ |
| enhancedIn | VMware vSphere 6 NERFINISHED ⓘ |
| ensures |
near-instant failover on primary VM failure
ⓘ
no restart required for protected VM on host failure ⓘ |
| featureOf |
VMware vSphere Enterprise Plus edition
NERFINISHED
ⓘ
VMware vSphere licensing bundles that include FT ⓘ |
| hasLimitation |
higher CPU and network overhead than unprotected VMs
ⓘ
maximum number of FT-protected VMs per host ⓘ maximum vCPU and memory per FT-protected VM depending on vSphere version ⓘ |
| improves | recovery time objective ⓘ |
| integratesWith |
Distributed Resource Scheduler
NERFINISHED
ⓘ
vCenter Server NERFINISHED ⓘ vSphere vMotion NERFINISHED ⓘ |
| introducedIn | VMware vSphere 4 NERFINISHED ⓘ |
| minimizes |
application downtime
ⓘ
data loss on host failure ⓘ |
| monitors | primary virtual machine execution state ⓘ |
| operatesAt | hypervisor level ⓘ |
| protects | virtual machines ⓘ |
| protectsAgainst | ESXi host hardware failures ⓘ |
| provides |
continuous availability for virtual machines
ⓘ
protection against host failures ⓘ zero-downtime protection ⓘ |
| requires |
cluster with at least two ESXi hosts
ⓘ
compatible CPUs across hosts ⓘ reliable low-latency network between hosts ⓘ shared storage ⓘ |
| runsOn | VMware vSphere NERFINISHED ⓘ |
| supports |
automatic failover
ⓘ
maintenance operations without downtime for protected VMs ⓘ multi-vCPU virtual machines in newer vSphere versions ⓘ vMotion of protected virtual machines ⓘ |
| targets | zero recovery time objective for protected VMs ⓘ |
| usedFor |
applications that cannot tolerate downtime
ⓘ
legacy applications without native clustering ⓘ mission-critical workloads ⓘ |
| uses |
FT logging network traffic between hosts
ⓘ
deterministic replay on secondary VM ⓘ live shadow instance of a virtual machine ⓘ lockstep execution between primary and secondary VMs ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.