RE: NIC binding vs IPMP for RAC interconnect
- From: "Hameed, Amir" <Amir.Hameed@xxxxxxxxx>
- To: D'Hooge Freek <Freek.DHooge@xxxxxxxxx>
- Date: Wed, 28 Mar 2012 07:53:59 -0400
Thanks Freek and Senthil for the feedback.
So, it seems that for a 2-node RAC cluster, either IPMP or NIC bonding
can be used, whereas for a 2+n node RAC (where n > 0), bonding is the
preferred method because the load-balancing feature of bonding will be
utilized.
Thanks
Amir
-----Original Message-----
From: D'Hooge Freek [mailto:Freek.DHooge@xxxxxxxxx]
Sent: Wednesday, March 28, 2012 3:06 AM
To: skumar.sen@xxxxxxxxx; Hameed, Amir
Cc: <oracle-l@xxxxxxxxxxxxx>
Subject: RE: NIC binding vs IPMP for RAC interconnect
The load balancing will actually depend on the number of cluster nodes
in your configuration.
At the switch level an outgoing port is choosen based upon the mac
address from the sender and/or receiver or the sender and/or receiver IP
address (depending on switch type and configuration).
This means that if you have a one-to-one relation (2 node rac), only 1
cable worth of bandwidth is being used.
Kind regards,
Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge@xxxxxxxxx
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Senthil Subramanian
Sent: woensdag 28 maart 2012 1:34
To: Amir.Hameed@xxxxxxxxx
Cc: <oracle-l@xxxxxxxxxxxxx>
Subject: Re: NIC binding vs IPMP for RAC interconnect
In a RAC system, you should take advantage of both SPOF and load
balancing for your interconnects. The NIC bonding or teaming called
link aggregation on Solaris platform. IPMP can only provide failover
capability. However, on the other hand, NIC bonding(LA) can provide
both load balancing and failover capabilities.
+Senthil
Sent from my iPad
On Mar 27, 2012, at 7:26 PM, "Hameed, Amir" <Amir.Hameed@xxxxxxxxx>
wrote:
> Folks,
> I would like to understand which one is a better option for a RAC
> interconnect: (a) NIC bonding (b) IPMP based failover. The OS is
Solaris
> 10, the Grid version is 11.2.0.3 and the RDBMS version is 11.1.0.7
(HAIP
> cannot be used because of the RDBMS version). I am assuming that
bonding
> will provide more bandwidth than the IPMP based failover.
>
>
>
> Any feedback will be appreciated.
>
>
>
> Thanks
>
> Amir
>
>
>
>
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