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Virtualization on Redhat Enterprise Linux (RHEL)

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Baru ngeh setelah dapet link informasi tentang virtualisasi yang disupport oleh RHEL. Ternyata mulai dari RHEL 5, Redhat sudah mulai memakai teknologi virtualisasi KVM dan bukan lagi XEN.

Berikut perbandingan fiturnya :

Virtualization Limits for Red Hat Enterprise Linux (RHEL) Hypervisors

a) RHEL5 KVM and Xen Virtualization
b) RHEL6 KVM Virtualization
c) Red Hat Enterprise Virtualization (RHEV-H)

Red Hat Enterprise Linux Technology capabilities and limits (supported[/theoretical])[1]

RHEL 5 XEN x86 RHEL 5 XEN x64 RHEL 5 KVM RHEL 6 KVM
Maximum number of cores in host
32 [2] 128 96 128 / 4096
Maximum memory in host
N/A N/A 1TB 2TB / 64TB
Maximum number of virtual CPUs in paravirtualized guest
x86 32 [2] 32 [2] N/A N/A
x86_64 N/A 32 [2] N/A N/A
Maximum memory in paravirtualized guest (x86)
x86 16 16 N/A N/A
x86_64 N/A 16 N/A N/A
Maximum number of virtual CPUs in fully virtualized guest
x86 32 [2] 32 [2] 16 64
x86_64 N/A 32 [2] 16 64
Maximum memory in fully virtualized guest
x86 7.9 80 256 256
x86_64 N/A 80 256 256[3]

The RHEL Virtualization support matrix can be found here.

Notes:

[1] Supported limits reflect the current state of system testing by Red Hat and its partners for mainstream hardware. 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 include a reference to the details of the system specific limits, and are 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 as on-going testing completes.

[2] Supports a maximum of 125 CPUs across entire machine.

[3] Requires Intel EPT or AMD RVI technology support.

(Source : http://www.redhat.com/rhel/virtualization/compare/)


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