Re: Mixing RAC interconnect with other clusters

From: Justin Mungal <>
Date: Sat, 29 Mar 2014 07:08:07 -0500
Message-ID: <>

Oracle recommends that each RAC Interconnect have a dedicated switch, let alone sharing a single VLAN for multiple RACs (Assuming multiple RAC clusters because you pluralized Interconnect). It can work, but you may run into performance problems and troubleshooting difficulties should the switch backplane(s) you're using as Interconnects become saturated.


On Sat, Mar 29, 2014 at 4:39 AM, Nadeem M. Khan <>wrote:

> I think I already know the answer to this one (No), but thought of taking
> your opinions.
> Suppose a shop wants to use different clusters for different purposes -
> RAC, RHCS, ServiceGuard, HACMP, Veritas and even VMware vSphere. For
> interconnects, they plan to have one dedicated private VLAN that will be
> isolated from public traffic. My question is - can the same private VLAN
> be used for RAC interconnects as well as other cluster interconnects? They
> will be having only one cluster of each type.
> If the answer is No, I suppose each cluster type will need a separate
> VLAN? For example -
> RAC private VLAN
> RHCS private VLAN
> HACMP private VLAN and so on.
> Thanks in advance!

Received on Sat Mar 29 2014 - 13:08:07 CET

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