Solved

Load balancing & Balancing

Posted on 2012-12-30
6
289 Views
Last Modified: 2013-01-01
In general: if you have say a NAS set up: and the device has 2 or more NIC's: can you combine both fail-over and load balancing functionality should you configure link agregation or channel bonding? What I mean is> can both be used?
0
Comment
Question by:yip459
6 Comments
 
LVL 26

Expert Comment

by:Thomas Zucker-Scharff
Comment Utility
Nt sure of your exact configuration, but our exchange 2010 setup has both load balancing and failover.
0
 
LVL 68

Expert Comment

by:woolmilkporc
Comment Utility
Channel bonding is a form of link aggregation, or better, kind of a superordinate term for it.

While the classic standardized link aggregation takes place in the 802.3 sublayer (optionally using LACP - Link Aggregation Control Protocol, requires LACP capable switches) the software-based Linux bonding driver and many others, like the AIX LA driver support not only 802.3ad, but also other options like round robin, active backup (one active NIC, others in standby) and adaptive balancing (no link aggregation-aware switches required).

802.3ad (standard link aggregation) provides load balancing, and this includes failover capability automatically, because any aggregated link can exist with only one active NIC.

So if you configure the bonding driver for 802.3ad you're employing classic link aggregation, if you configure one of the other methods you're using some special form of link aggregation outside the standard.

Another special form is Etherchannel, once invented by CISCO but also available in IBM AIX and some other  OSes.

The  above implies that you cannot use link aggregation and channel bonding in parallel, because both methods are in a way contained in each other.
0
 

Author Comment

by:yip459
Comment Utility
After re-reading my question I can see where my question was misleading on the answer I was seeking. However, you have both helped clarify my understanding. i didn't realize the connection between channel bonding/link aggregation. Thank you
0
Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

 
LVL 16

Expert Comment

by:Shaik M. Sajid
Comment Utility
link aggregation and network teaming both are same..

Windows Server 2012 and our FREE Hyper-V Server 2012 include native teaming of network adapters to provide load balancing, bandwidth aggregation and failover capabilities using standard Ethernet NICs.  IT Pros have been really interested in NIC teaming, because it can provide the extra bandwidth and fault tolerance needed for business critical networks segments supporting virtual machines, clusters, live migrations and iSCSI storage - all over commodity network adapters!

refering to Channel bonding
it's a dynamic teaming:

 •      Dynamic teaming using the Link Aggregation Control Protocol (LACP) to dynamically identify links that are connected between the host and a given switch. This enables the automatic creation of a team and, in theory but rarely in practice, the expansion and reduction of a team simply by the transmission or receipt of LACP packets from the peer entity. Typical server-class switches support IEEE 802.1ax but most require the network operator to administratively enable LACP on the port.  
Both of these modes allow both inbound and outbound traffic to approach the practical limits of the aggregated bandwidth because the pool of  team members is seen as a single pipe.
0
 
LVL 20

Expert Comment

by:rauenpc
Comment Utility
A simple answer depends on how you connect the nas/server to your switch(es). If you make both connections to a single switch and that switch supports LAG configuration, then you can do either load balancing or failover. If the switch doesn't support LAG or you're connecting to two different switches, your only reliable choice is failover.
0
 
LVL 1

Accepted Solution

by:
thpipfh earned 500 total points
Comment Utility
Yes...... you can use.....
0

Featured Post

Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

Join & Write a Comment

Ever wondered why Windows 8 and 10 don't seem to accept your GPO-based software deployment while Windows 7 does? Read on.
Our Group Policy work started with Small Business Server in 2000. Microsoft gave us an excellent OU and GPO model in subsequent SBS editions that utilized WMI filters, OU linking, and VBS scripts. These are some of experiences plus our spending a lo…
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

728 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

11 Experts available now in Live!

Get 1:1 Help Now