• Please help support our sponsors by considering their products and services.
    Our sponsors enable us to serve you with this high-speed Internet connection and fast webservers you are currently using at ADSM.ORG.
    They support this free flow of information and knowledge exchange service at no cost to you.

    Please welcome our latest sponsor Tectrade . We can show our appreciation by learning more about Tectrade Solutions
  • Community Tip: Please Give Thanks to Those Sharing Their Knowledge.

    If you receive helpful answer on this forum, please show thanks to the poster by clicking "LIKE" link for the answer that you found helpful.

  • Community Tip: Forum Rules (PLEASE CLICK HERE TO READ BEFORE POSTING)

    Click the link above to access ADSM.ORG Acceptable Use Policy and forum rules which should be observed when using this website. Violators may be banned from this website. This notice will disappear after you have made at least 3 posts.

New TSM server

influx

Active Newcomer
Joined
Jun 5, 2007
Messages
258
Reaction score
0
Points
0
I have a new AIX server that has 4 dual ported NICS, attached to 2 switches. The server will host 4 TSM instances. I would like to present all 8 ports as a single IP address and control the data via the TCPPORT. My network group is proposing 4 vlans and stating that I can NOT implement etherchannel/link aggegation due to the 4 vlan's.
The reason I want 1 IP address is for ease of administration, load balancing across all 4 TSM instances, simplicity of failover (1 FQDN/DNS change). I'm considering asking them to change to one vlan so I can implement etherchannel. Is this reasonable? What are others doing? What is best practice? Thanks.
 

Mikey D

ADSM.ORG Member
Joined
Mar 21, 2007
Messages
272
Reaction score
8
Points
0
Location
Southeast Michigan
Most etherchannel setups I've seen require the ports to all be on one switch, so that may need to be changed.
 

javajockey

ADSM.ORG Senior Member
Joined
Dec 26, 2007
Messages
265
Reaction score
6
Points
0
Location
Yorktown
We're doing something similar to this but with 2 1G ports. Basically the process is the same.
smit etherchannel to configure your network interface. Influx is right. Etherchannel normally assumes there is one switch. There is an option for a backup interface. If you go that route, make sure it is on a separate switch. I would recommend using 6 interfaces as the primary, and 2 as a backup. Be vary careful on what mode you use. Your network guys need to work with you to get the best performance.
 
Last edited:

influx

Active Newcomer
Joined
Jun 5, 2007
Messages
258
Reaction score
0
Points
0
My network folks are warning against making one VLAN vs 4 VLANS. They've advised me that one big VLAN will cause too much broadcast traffic on the network and are concerned it will degrade throughput on my AIX server. Not sure of the validity of this statement/comment. Can anyone advise. Thanks.
 

javajockey

ADSM.ORG Senior Member
Joined
Dec 26, 2007
Messages
265
Reaction score
6
Points
0
Location
Yorktown
I'm not a network engineer, but that does not make any sense. Etherchannel assumes that you have multiple interfaces are "bound" to a single IP. I don't see how it is even possible to have the interfaces on separate VLANS. As for broadcast traffic, make sure you have both the switch and etherchannel settings using either 802.ad or native cisco etherchannel. Aslo make sure the hash modes match. I've been using etherchannel for a while now, so far it's been great.
 

influx

Active Newcomer
Joined
Jun 5, 2007
Messages
258
Reaction score
0
Points
0
Javajockey,

Hmmm... maybe I should have restated the new issue. We have 4 fiberchannel ports on the server. The network folks are saying, create 4 VLANS and 4 distinct IP addresses. Initially I wanted 1 VLAN, and the 4 physical IP's "bonded" behind the one virtual. The network group advised that having one big VLAN could cause too much broadcast traffic on the network.
 

influx

Active Newcomer
Joined
Jun 5, 2007
Messages
258
Reaction score
0
Points
0
Tommy, can you expound on that last statement, "In theory, the statement from your network group that having one big VLAN could cause too much broadcast traffic is the opposite of the theory.... " I'm not sure I understand.
 

Mita201

ADSM.ORG Senior Member
Joined
Apr 20, 2006
Messages
579
Reaction score
22
Points
0
Location
Beograd, Serbia
Influx,

Do you and your network guys speak common language? Do you understand each other well?
When you say "I want 4 eth ports from ONE computer (TSM server) agrregated (for bandwidth, failover, loadbalancing, whatever is your concern)" you are right.
When they said 4 VLANs are better than one big VLAN for less broadcast they are right too, but this is speaking about the network as whole, not about one computer with one IP address. So, you are both right, but not talking about same thing. It looks like you are talking about one host, and they are talking about whole network.
 
  • Like
Reactions: BBB

syntax44

ADSM.ORG Member
Joined
Aug 7, 2006
Messages
233
Reaction score
5
Points
0
Website
www.tsmblog.org
Influx, I've removed my previous post as (after reading it again) it is partially wrong. The comment by Mita201 is wat I was trying to say as well.
 

Advertise at ADSM.ORG

If you are reading this, so are your potential customer. Advertise at ADSM.ORG right now.

DigitalOcean $100 Credit

Support ADSM.ORG and get DigitalOcean FREE credit. DigitalOcean currently offer a $100, 60-day Free Credit for new accounts. Sign-up here:

DigitalOcean Referral Badge

The Spectrum Protect TLA (Three-Letter Acronym): ISP or something else?

  • Every product needs a TLA, Let's call it ISP (IBM Spectrum Protect).

    Votes: 20 18.7%
  • Keep using TSM for Spectrum Protect.

    Votes: 65 60.7%
  • Let's be formal and just say Spectrum Protect

    Votes: 13 12.1%
  • Other (please comement)

    Votes: 9 8.4%

Forum statistics

Threads
31,871
Messages
135,906
Members
21,786
Latest member
london
Top