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| • Autofailover |
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| The mainstay of TZO-HA and the foundation for the high availability option is the unique capability of maintaining extraordinarily low cache times. This allows for near real time traffic redirection. |
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| When TZO-HA detects a failure it automatically updates the DNS record for your domain so that the server requests are sent to the IP address of your alternate server or server cluster. |
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| Unprecedented failover time |
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| The maximum time to re-direct server requests is 2-1/2 minutes including failure detection, DNS record changes, and DNS propagation time through other DNS servers. Typically, this all occurs within 1 minute. Competitive offerings can only deliver time frames of 10 to 30 minutes or more. TZO-HA also Includes Multiple Failover modes. Read More … >See Flash Description
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| •
Load Balancing |
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| One
instance of TZO-HA can monitor as many as
four servers and balance the load among
them. TZO’s patented “Intelligent
Round Robin” offers a flexible means
to manage the behavior of cooperating servers.
A web site visitor, for example, engaged
in a session at one server will not be sent
to a different server unless the visitor
clicks on a fully qualified link within
that web site requiring a new DNS resolution. |
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| TZO-HA
offers many advantages. It's configurable,
scaleable, reliable, yet inexpensive. TZO-HA
complements hardware load balancing devices
from F5, WSD, SysMaster and others. Including
, “Priority Server Weighting”
and “Intelligent Round Robin”
Read
more….
>See Flash Description
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| • Geographic Load Balancing |
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Geographic load balancing deployed entirely as a service has revolutionized the global load balancing industry. With no hardware to deploy and no software to configure, TZO-GEO offers a complete paradigm shift for true global traffic management.
With “N” number of participating server/s or IP addresses, as an inbound DNS query comes in to the TZO DNS infrastructure, we lookup the Source IP address of the DNS query. We then match that source IP to a database of IP addresses and geographic longitude and latitude definitions. When a geographic location is found for the source DNS query IP address, we then calculate which of the participating servers is closest in proximity to the originating DNS query. This all happens in milliseconds and poses no detectable latency to the standard DNS query. Read more…. |
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| • Server Monitoring |
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| TZO-HA monitors your server, dynamically. Every few seconds, TZO-HA agents monitor your server within the protocol you select. Not only can it check the availability of your server and your server software functionality, but also it can check the validity of the content being served. All this at a fraction of typical monitoring software prices. Including Multi-Point Monitoring. Read More... >SeeFlash Description
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