[isalist] Re: Dual Nic'ed HP proliant

  • From: "Gerald G. Young" <g.young@xxxxxxxx>
  • To: <isalist@xxxxxxxxxxxxx>
  • Date: Sat, 14 Oct 2006 08:51:25 -0400

Oh, yes.  I know the type. :)  Separate NIC on each card so if a single card 
fails you only lose one NIC.  I have a similar kind of thing going with a 600 
person Exchange cluster: 2 VSs with 300 on each so that if one database takes a 
dump they don't lose all 600.  If ya got the money for it, though...? :)

I'd be curious about why 4 single-port NICs have an issue.  Do be sure to get 
those details. :)

Oh, and now that they're on the 2 dual-port NICs, how did they set up teaming?  
Did they make both ports on a single card part of the same team?  Or did they 
make 1 port from each card part of the same team.  If they haven't done the 
latter already, you might be able to "save some face" by suggesting they do 
that so that at least if a single card does go down, they still have 
connectivity through the other one; that gets it pretty close to their 
redundancy with 4 NICs since in either case a minimum of two physical failures 
need to occur before network services are impacted.

Cordially yours,
Jerry G. Young II



From: Glenn P. JOHNSTON
Sent: 2006/10/14 (土) 1:14
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Dual Nic'ed HP proliant


Yep.

But all too often there is a world of difference between what 'actually is the 
case', and what the non technical client perceives as 'being the case' !

In this case, their perception is very different to reality, but they are not 
going to believe me, no mater how I tell them, as they perceive 'me' as being 
the one who has solved there initial problem, by getting rid of there much 
dearly loved 4 nic redundancy.

Such is life !

As a side note, I'd really like to know how a company of 109 people justifies a 
56Mbit frame relay internet connection, that's a very thick internet pipe for 
just over 100 people !

GJ.


From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of Jim Harrison
Sent: Saturday, 14 October 2006 14:59
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Dual Nic'ed HP proliant


This is stupid; four single-port NICs are no more “redundant” 
than two dual-port NICs.
If they’re that anal, it’s time to scale their server out.

From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of Glenn P. JOHNSTON
Sent: Friday, October 13, 2006 5:02 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Dual Nic'ed HP proliant

HP Field service has swapped the 4 single port Nic's for 2 dual port ones. 1 
fibre, 1 gigabit. Some 3rd level support guy put an entry in the call log, that 
this is a know issue, and to replace with dual port nic's. I'm trying to get 
more details on exactly what the issue is.

Removed to old nic's from the teaming, added the new dual port ones to the 
teaming, rebooted, everythings working fine. all 4 nic's are connected and 
traffic is flowing on all 4 links. Quite happily fails over to the other link 
when 1 is unplugged, and will switch back and forth.

Now the client is not happy, they see this as 2 single nic's and that they have 
lost redundancy, and they now have 2 single points of failure, which is 
probably partially true.




From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of Ball, Dan
Sent: Friday, 13 October 2006 21:37
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Dual Nic'ed HP proliant
If it is working when cords are unplugged, it is getting confused about which 
route to take, so look at your teaming settings first.

I don’t have one handy to look at, but I recall there being a few 
different ways to set up the teaming.  I had mine set up to use the same MAC, 
same IP, but I don’t recall what setting I used for load-balancing (I 
think it was fail-over).  

You also need to set the same style of load-balancing on the device it is 
plugged into…




From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of Glenn P. JOHNSTON
Sent: Friday, October 13, 2006 1:04 AM
To: isalist@xxxxxxxxxxxxx
Subject: RE: [isalist] Re: Dual Nic'ed HP proliant

NLB is definately disabled.

The setup is currently running fine in production with 2 nic's unplugged, but I 
have been left with the task of solving the issue.




From: isalist-bounce@xxxxxxxxxxxxx on behalf of Jim Harrison
Sent: Fri 13/Oct/2006 14:37
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Dual Nic'ed HP proliant
http://www.isaserver.org/
-------------------------------------------------------
 
ISA doesn't know or care about teaming, Q-tagging or any other layer-2
protocols.
Make sure you don't also have NLB enabled, as NLB and teaming is not a
supported combination.

-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Glenn P. JOHNSTON
Sent: Thursday, October 12, 2006 4:45 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Dual Nic'ed HP proliant

http://www.isaserver.org/
-------------------------------------------------------
 
Hi,

Currently working on a brand new server, it a new HP proliant, quadriple
nic'ed.

It's running W3KR2 with all updates to date applied, domain member, all
HP updates for the HP software applied, nic's have the latest firmware
applied. it's using the HP server nic teaming software. ISA2004
installed with all updates to date applied.

The Internet connection use 2 gigabit nic's teamed to connect to a  56M
frame relay connection via a watchguard firewall (Let's not get into the
watchguard discussion, I have to work with what the company has in
place) , via cat5e cable.

They are 4 separate nic's and not dual ported ones.

The LAN connection uses 2 fibre channel nic's teamed to go to a dual
redundant cisco switch.

Before ISA was installed, teaming was working fine, both the internet
and the lan were accessable.

After installing ISA, neither the internet or the LAN is accessable,
unless 1 of the teamed nic's is unplugged on both sides. i.e. 1 internet
nic unplugged + 1 lan nic unplugged eerything works like a dream.

But plug either or both of the 2 that were unplugged in, and neither the
internet nor the LAN is accessable.

Disable the firewall services, and reboot, everything is fine with all 4
NIC's plugged in.

HP field service have been twice out replaced the nic's, ran diag's and
they are pointing the finger at the ISA server. Saying it's not
compatable with the HP nic teaming software, but can not point out any
documentation to support this. Searching the internet also drew a blank.

The company configured the server using the proliant configurader, so I
am assuming that everything is compatable, and the field service people
responded in the afermative, when asked is everything compatable.

Does anyone have any experience or suggestions on this ??

Glenn
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