The following limits apply to Red Hat Enterprise Virtualization. Red Hat also offers Red Hat Enterprise Linux with KVM virtualization, which offers virtualization for low-density Red Hat Enterprise Linux environments. To see limits for Red Hat Enterprise Linux with KVM virtualization, please see "Virtualization limits for Red Hat Enterprise Linux with KVM".
|Red Hat Enterprise Virtualization 2||Red Hat Enterprise Virtualization 3||Red Hat Virtualization 4|
|Maximum number of concurrently running virtual guests||Unlimited||Unlimited||Unlimited|
|Maximum number of virtual CPUs in virtualized guest||16||160||288 for 4.0-4.2384 for 4.2-4.3|
|Maximum memory in virtualized guest||512 GB1||2 TB1||4 TB1|
|Minimum memory in virtualized guest||512 MB||512 MB||N/A|
- Supported limits reflect the current state of system testing by Red Hat and its partners. Systems exceeding these supported limits may be included in the Hardware Catalog after joint testing between Red Hat and its partners. If they exceed the supported limits posted here, entries in the Hardware Catalog will be fully supported. In addition to supported limits reflecting hardware capability, there may be additional limits under the Red Hat Enterprise Linux subscription terms. Supported limits are subject to change based on ongoing testing activities.
- For limits using KVM virtualization included with Red Hat Enterprise Linux, please see "Virtualization limits for Red Hat Enterprise Linux with KVM".
- Guest Operating systems will have different minimum memory requirements. Virtual Guest memory can be allocated as small as required.
- More specific RHV limitations can be found in "Planning and Prerequisites Guide: Requirements".
- Supports the maximum supported memory per VM in the host, all of which may be allocated to the virtualized guest. 32-bit guests with Physical Address Extension (PAE) support will only be able to access 64 GB. This is a virtual hardware limitation.