ACE:How to bind more VIPs' status, one VIP down, others also down
As we know, a WEB2.0 business is consist of more services, and those services communicte with each other.
If one service shutdown, and failover to another DataCenter, other services must talk with it cross datacenter, that will reduce the whole system's performance, so we need bundle failover those services.
One service has a VIP, my question is how to bind those services' VIP status.
I expect if one VIP down, the other VIP also down.
Re: ACE:How to bind more VIPs' status, one VIP down, others also
There may be more than one way to accomplish this and I'm not sure which would be the best way, but here is one that comes to mind:
VIP-A --> Serverfarm-A --> Rserver-A
VIP-B --> Serverfarm-B --> Rserver-B
Let's say you have VIP-A and VIP-B that you want to failover together, even if only one of them goes down at a local datacenter. Since you can apply more than one probe to a serverfarm, and that the default behavior is that if just one probe fails the rserver is down, then you could have Serverfarm-A and Serverfarm-B both probing Rserver-A and Rserver-B. This way, if either Rserver-A or Rserver-B application goes down, both serverfarms will go down. Now the ACE can switch the serverfarm for both VIPs to the backup serverfarm, which would reside at the backup datacenter.
Introduction This article will help you understand the steps on how to
download the UCS licenses from the Cisco Systems website and then
installing it on the UCS. The redacted (blue lines) just covers up
certain numbers for privacy please do not take them...
Introduction This article will help you understand and educate the
customer on how to clear their "expired licenses"
(license-graceperiod-expired) from their UCS-M. If a customer just
purchased a license and needs a step by step guide on how to download
Introduction Prepositioning is a powerful tools on the WAAS platform but
it is not always easy to figure out why your jobs are failing when
trying to retrieve the files.Here is a method that should help you to
figure out the reason why they are not succes...