Solved

NLB members : mix of VM & physical servers

Posted on 2013-06-06
6
872 Views
Last Modified: 2013-06-09
Understand that to create an MS NLB cluster which have all VMs as
its members, it has to be a multicast NLB plus static ARP entries
to be defined in all switches & uplink switch ports.

We currently have 3 physical Crystal report servers (all of which
also act as print servers) : suppose we P2V'ed only one of them,
can we shut down the P2V'ed physical server & then make this
VM a member of the NLB cluster.  This NLB cluster is an existing
NLB previously with the 3 physical servers in it.

Any special settings needed like setting the NLB to multicast or
special settings on the LAN switches?
0
Comment
Question by:sunhux
  • 3
  • 3
6 Comments
 

Author Comment

by:sunhux
Comment Utility
What if I have 2 VMs & 1 physical server?  Can they still be members
of an NLB cluster & do we need to set the NLB as multicast with
static ArP entries set in the switches?
0
 
LVL 117

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 490 total points
Comment Utility
That is correct, I think we've discussed this before at length.

Cluster MUST be set to Multicast, and you then must assign the Cluster IP Address, against the MAC address, and statically configure the ports for your HOsts and  Physical server nic ports.
0
 

Author Comment

by:sunhux
Comment Utility
Even if in the NLB cluster there's only one VM and the other
being the physical server?

If we have 2 VMs, we've indeed discussed that it needs to be
in multicast with static arp entries defined in the switches
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 117

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 490 total points
Comment Utility
Yes, we have mixtures of physical and virtual NLB clusters.

All static arps need to be configured, it's not different for virtual or physical machines.
0
 

Author Comment

by:sunhux
Comment Utility
Just 1 last question:

suppose the VM joins the NLB (which has 2 other servers but
they're physical servers, not VMs) successfully & we don't
vMotion the VM to another ESXi host, would it give any
issue (as long as I don't do vMotion) ?
0
 
LVL 117

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 490 total points
Comment Utility
It would not cause any issues, but if the port changes that the cluster MAC IP Addresses appears on, and it's not statically allocated, the Cluster is not likely to converge.
0

Featured Post

New My Cloud Pro Series - organize everything!

With space to keep virtually everything, the My Cloud Pro Series offers your team the network storage to edit, save and share production files from anywhere with an internet connection. Compatible with both Mac and PC, you're able to protect your content regardless of OS.

Join & Write a Comment

Suggested Solutions

This article is an update and follow-up of my previous article:   Storage 101: common concepts in the IT enterprise storage This time, I expand on more frequently used storage concepts.
VM backup deduplication is a method of reducing the amount of storage space needed to save VM backups. In most organizations, VMs contain many duplicate copies of data, such as VMs deployed from the same template, VMs with the same OS, or VMs that h…
Teach the user how to use configure the vCenter Server storage filters Open vSphere Web Client:  Navigate to vCenter Server Advanced Settings: Add the four vCenter Server storage filters: Review the advanced settings: Modify the values of the four v…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

743 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now