Microsoft clustering with vsphere 6.0 advice

I need to setup Microsoft clustering on 2 x 2012 virtual servers running on vsphere 6.0
Am a right in thinking that when using standard vmdk disks that only cluster In a box can be used and both vms must be on the same host.
And that no Drs or vmotion option can be used?
If I want cluster across esx hosts I need to use rdm disks?
Basically just looking advice on setting up clustering
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dougdogAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Am a right in thinking that when using standard vmdk disks that only cluster In a box can be used and both vms must be on the same host.

Correct, but Cluster in a Box, is only really designed or Labs Proof of Concepts - you should not really use this in Production!

As it's only based on virtual machine disks, and SCSI Bus Sharing, both Cluster Nodes can only be hosted on the same host, so if the host fails, you have no resilience.

And that no Drs or vmotion option can be used?

Also correct.

If I want cluster across esx hosts I need to use rdm disks?

This is the Best Practice and recommend.

Basically just looking advice on setting up clustering

Consult the bible here

Setup for Failover Clustering and Microsoft Cluster Service ESXi 6.0 vCenter Server 6.0

Do you need Failover Clustering for SQL, could you use VMware HA ?

this will give you HA of the VM, if the Host fails, the VM will restart in 1-2 minutes, and there are lots of alternatives to SQL.

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dougdogAuthor Commented:
Yes for sql
Is there much to setting up rdm?
HA would only cover hardware
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
1. Create a LUN in he normal way and present to ESXi hosts.

2. Add Disk to VM, and select RDM, pick it from the list.

3. Disks appears in VM, format as NTFS.

4. Done.

see here

https://www.vmadmin.co.uk/resources/35-esxserver/58-rdmvm

RDM creation, VMware vSphere VMs are the easy bit.....

Failover Clustering by Microsoft is the buggy bit, it's getting better, has a Wizard for deployment now, but still not 100% perfect!

and that has got nothing to do with VMware vSphere, same with Physical Nodes!
dougdogAuthor Commented:
On cluster in a box
I tried powering down and cold migrating but it doesn't seem to be able to move off the host it was created on
What would happen if the host needs repaired or maintenance
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
For the benefit of other Experts and Members, This latest post is a new question. Please post a new question and myself or other Experts will be glad to assist.
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