Dell Acceleration Appliances for Databases Manual de usuario descargar pdf (Pagina 88)

Low-Profile Slot Assignments

Non-HA, FC Non-HA, iSCSI HA, FC HA, iSCSI

Slot 1 empty empty Cluster Interconnect

(both Eth ports)

Left port = iSCSI;

Right port = Cluster Interconnect

(Eth)

Slot 2 FC iSCSI (Eth) FC (both ports) iSCSI (both ports)

Slot 3 FC iSCSI (Eth) FC (both ports) Left port = iSCSI;

Right port = Cluster Interconnect

(Eth)

Split-Function Ports for iSCSI – Dell R720

For increased redundancy/high-availability, when using

two Mellanox ConnectX-3 dual-port adapters for both

connectivity between HA IONs and fabric connectivity to

the initiator nodes (as when running iSCSI), it is best to

split the functionality between the cards. This allows

each card to be used for both a redundant connection

to the partner node and to the fabric. That way, if one

adapter fails, and both its ports are lost, the system can

continue to run. The mode will be partially degraded,

but not system-failed, with the remaining cluster

interconnect and iSCSI ports on the other adapter.

It is important to use the correct ports for fabric and ION interconnectivity in this case. The diagram

above, along with the rear-view picture of the ION chassis shown previously, describe the ports to be

used to connect IONs, and the ports to be used when connecting to the fabric.

iSCSI Port Assignments

• PCIe Slot 1: left port = iSCSI, right port = cluster interconnect (Eth)

• PCIe Slot 2: both ports = iSCSI

• PCIe Slot 3: left port = iSCSI, right port = cluster interconnect (Eth)

ConnectX®-3 iSCSI card

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Dell Acceleration Appliances for Databases Manual de usuario Pagina 88