Ghost imagaing

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Hiya all, Specs first.. Ghost Corporate multicast server 7.5. Switches are all 3com, 10/100. Wireless network is 10mg network ports (2) shared via 2 wirelss access points, (D-Link 22Mbps) Problem is, whenever i image multiple machines, the whole network goes slow. The machines affected are old and the new ones don't suffer that much. The wireless network nearly stops it goes that slow. Am i missing something simple or do i need to look further into this? Any help much appreciated.

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when you ghost are you doing brodcast or directed?
I try to do directed it seems to not affect the network as much. the other thing you might try is to put them on a seperate switch or a VLAN if you have that capability.
also seen many places set up standalone ghost server on a seperate network just for imaging, (little assembly line) but you have to have the extra hardware and space.

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  • Boardfish
    This is part of the problem with multicast that you don't find in unicast. Though multicast can support imaging multiple systems at the time, because of the nature of the packets, you create a lot of network collisions and retries. This can really bog down a network segment. It's best to do this form of imagine over a hard-wired, physically and logically separated network or controlled VLAN. If you're interested in getting other Ghost users perspective, you may want to cross post this to the Boardfish.com Ghost forum at: http://www.boardfish.com/forum/forum_topics.asp?FID=14 Good luck! Duncan McAlynn Founder, Boardfish.com
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  • Snapper70
    I don't know the config commands on 3Com, but you CAN set up multicasting with a switch and router that supports the capability. What is probably happening is that, when imaging, the ENTIRE NETWORK SEGMENT is being flooded at the rate of your slowest machine being imaged. If that's 10 Meg, then your 10 Meg machines will get next to no bandwidth. You can either set the network up to support Multicast via CGMP or snooping; or have the imaged machines/server on their own network segment.
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  • Paul144hart
    Since you noted that older machines are most affected, I would look into seeing their network adapters are operating in promiscious mode - the OS listens to all traffic. The newer machines are probably setting that by default as it is a more secure setting. If its not, then you'll need to look at changing the network, the idea of a VLAN that is for ghosting only sounds good if you have that ability. -paul
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  • Paul144hart
    One other thing, if you aren't going to manage anything on the wireless net, I'd block the ghost ports at the access point to stop the traffic from being broadcast.
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  • Dcsys99
    Multicast performance is based on the slowest link on the segment. A 10HD printer or the 10Mb WLAN will cause a slowdown for all 100Mb systems
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  • Genderhayes
    Block the ghost ports at the access point to stop the traffic from being broadcast.
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