Citrix’s definition of HA
Today we had a very interesting presentation from Citrix. At one point the discussion was about the Citrix’s definition of High Availability.
I really can imagine that this is getting a confusing discussion. VMware says: HA is to resolve a single host failure. Citrix however also calls live migration a form of HA.
I can’t argue with that but to keep the discussions and comparisons clear it is essential to specify what you define as HA. I think both are right, but the trouble is that, when comparing products, people think they have a solution for hardware failure, but instead they can do a live migration.
I hopefully that in the future both parties start using the same names for the same options, or at least explain what their option is.
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When we, as vmware consultants, talk about HA we talk about the product / feature. When other, non vmware consultant, talk about HA they talk about the concept High Availability. VMotion or Live Migration or Xenmotion increases uptime and thus can be considered part of HA. It’s confusing indeed, and Citrix uses it at the moment to mislead possible customers.
btw install the “no self pings” plugin, saves you the needless comments when you refer to your own blog article :)
When we, as vmware consultants, talk about HA we talk about the product / feature. When other, non vmware consultant, talk about HA they talk about the concept High Availability. VMotion or Live Migration or Xenmotion increases uptime and thus can be considered part of HA. It’s confusing indeed, and Citrix uses it at the moment to mislead possible customers.
btw install the “no self pings” plugin, saves you the needless comments when you refer to your own blog article :)
Hello Duncan, thnx for the tip. Plugin is installed.
Hello Duncan, thnx for the tip. Plugin is installed.