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Doran_Lum_13484's avatar
Doran_Lum_13484
Icon for Nimbostratus rankNimbostratus
May 19, 2016

F5 LTM Virtual Edition at 2 data centre

Hi all, we are planning on deploying 2 F5 LTM VE on two data centre (Prod & DR Site). Only one datacentre will be active at anytime. Is it possible to do this without a GTM because most of the whitepaper from F5 mention of GTM for 2 datacentre ?

 

Both datacentre is 10km apart and have a direct network connection between both.

 

We are also using VMware SRM across Prod & DR so all VMs will be replicated across. It's also possible that we can deploy both F5 VE at Prod site and it will be replicated over to DR site ?

 

application delivery
LTM

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  • Hannes_Rapp's avatar
    Hannes_Rapp
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    May 19, 2016

    For the replication of F5 BigIP config from PROD to DR, create a SyncOnly Device Group. This should work perfectly fine, regardless of distance to another participants of Device Group.

     

    I would not configure LTM network fail-over across 10km WAN link. You will risk having your PROD and DR active at the same time. A manual intervention may be your most reliable option to switch between the sites.

     

    Not sure what your data-center setup is, but if you have external routers that maintain a full BGP routing table, that can also contribute to reliability. Re-announcement of your external IP-addresses can occur automatically and no human intervention would be needed in case of ISP problems. In all other cases, going with the manual human intervention should work the best.