Best practices ISCSI VMK? How much per physical nic?

Hi guys,.

I have a practical question best.

I have an ISCSI unit with two controllers. Each controller has two ports. The configuration is the following:

A: controller

P1: 192.168.7.1/24

P2: 192.168.8.1/24

Controller b:

P1: 192.168.7.2/24

P2: 192.168.8.2/24

Each controller is connected to two switches. P1-> P2-> SW2, SW1.

Each server has two network adapters, dedicated to ISCSI traffic. The question is: VMKs how do I run a physical NIC? One? Or two?

I've set up so be it, but I'm not sure how it should be done. Currently, all guests have a VMK by NIC my argument is despite VMKs how I, the flow is still limited to 1 GB/s per port of the server (unity of ISCSI is 10 Gbps per port).

Option 1:

Server A:

  • MI 3
    • VMK1: 192.168.7.20/24
    • VMK2: 192.168.8.20/24
  • NIC4:
    • VMK3: 192.168.7.21/24
    • VMK4: 192.168.8.21/24

Option 2:

Server A:

  • NIC3:
    • VMK1: 192.168.7.20/24
  • NIC4:
    • VMK2: 192.168.8.20/24

Is it not wise to have a physical NETWORK card with two VMKs? I'm not sure if two VMKs physical NIC is "good" because it could lead to performance?

TIA!

A VMK by NIC is the supported configuration. If you do differently, you may not be able to properly configure the iSCSI.

André

Tags: VMware

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