I/O fencing support for Virtual to Virtual clustering
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I/O fencing support for Virtual to Virtual clustering

Disk-based SCSI-3 I/O fencing is supported for VCS clusters across VM guests on different physical machines. In case of VM as iSCSI initiator, virtual machines can be on same or different physical machines. The support matrix table lists the SCSI-3 fencing support for various Linux virtualization technologies.

Table: I/O fencing support matrix for virtual to virtual clustering

Virtualization Technology - Storage Protocol

SCSI Initiator

Guest OS

Supported(Yes/No)

Live Migration(Y/N)

KVM-iSCSI

VM as Initiator

RHEL 6.x

SLES 11

RHEL 7

Y

Y

Y

Y

Y

Y

KVM-iSCSI

Hypervisor as Initiator (Virtio-SCSI)

RHEL 6.x

SLES 11

RHEL 7

Y

N

Y

N

N

N

VMware-iSCSI

VM as Initiator

RHEL 6.x

SLES 11

Y

Y

Y

Y

VMware-iSCSI

Hypervisor as Initiator (RDMP)

RHEL 6.x

SLES 11

Y

Y

N

N

KVM-FCP

VM as Initiator (PCI - Passthrough)

RHEL 6.x

SLES 11

RHEL 7

Y

Y

Y

N

N

N

KVM-FCP

Hypervisor as Initiator (Virtio-SCSI)

RHEL 6.x

SLES 11

RHEL 7

Y

N

Y

N

N

N

VMware-FCP

VM as Initiator

RHEL 6.x

SLES 11

Y

Y

N

N

VMware-FCP

Hypervisor as Initiator (RDMP)

RHEL 6.x

SLES 11

Y

Y

N

N
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