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Mac OS X

Q: ARD - Problems with software deployment

Hi there,

 

I have an iMAC with MAC OS X 10.10.5 and ARD version 3.7.2

 

When we deploy a MAC OS X image which is about 5GB via ARD to several MACs, we always have an network outage.

 

The reason is that ARD deploys the image via multicast.

 

I already found a solution in an other thread: "Communications Errror" when trying to copy files

 

So I disabled Multicast.

 

But now I have an other problem:

 

I always choose 5 MACs to deploy the image.

 

The copying is very slow. ARD needs 2minutes for 1%, that means it would last over 3 hours to deploy the image on all 5 MACs.

 

When I choose only one MAC in ARD (and not five), the copying lasts 2 minutes!  (what is normal for a copying on a Gigabit Ethernet)

 

All devices are connected via a 1GBit Switch.

 

Can anyone help me with this issue?

 

Thanks in advance, Alex

iMac, OS X Yosemite (10.10.5)

Posted on Dec 9, 2015 12:56 AM

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Q: ARD - Problems with software deployment

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  • by MrHoffman,

    MrHoffman MrHoffman Dec 9, 2015 7:55 AM in response to ME-Support
    Level 6 (15,637 points)
    Mac OS X
    Dec 9, 2015 7:55 AM in response to ME-Support

    If you have a switch and not a router, then that device should either be passing all multicast traffic, or — if it's a managed switch — it can be managed and configured to pass multicast, if it's not already doing that.

     

    I'd suspect either a switch problem, or maybe the switch is incorrectly configured or is mis-negotiating its settings.  


    What sort of switch is it?   Managed?


    If managed, how are the ports configured?   If you can see into the configuration, make sure all ports are 1 GbE full-duplex.

     

    If unmanaged, are there any indicators showing the negotiated speed?

     

    Are all hosts in the same IP subnet?

     

    Have you tried a different switch and some different cables?   This to try to isolate the problem to the switch or to the cables, or to the OS X boxes or ARD.

     

    I'd not expect that linked ARD article to be applicable here.   That's most of ten years back, and more than a few versions of OS X and ARD ago.