The Citrix ADC instances are created from a normal XenServer. For example, the 14040 SDX license gives you 40 Gbps of throughput, which is partitioned across the instances. The amount of bandwidth (throughput) available to the VPX instances depends on your license. 
The physical resources (CPU, Memory, NICs, SSL Chips, FIPS HSM) of the SDX are partitioned to the different instances. The number of Citrix ADC instances you can create is limited by your SDX license. Citrix ADC VPX Instances – you create one or more Citrix ADC instances on top of XenServer. 
Instead, all upgrades and configurations should be performed by the Service VM. Do not attempt to directly upgrade XenServer, patch XenServer, configure XenServer, etc. To manage multiple SDXs, use Citrix Application Delivery Management (ADM).
Each Service VM only manages the VMs on the local SDX. If it something happens to it, your only choice is to do a factory reset on the physical appliance, which deletes all local virtual machines, and recreates the Service VM. It’s not possible to build this VM yourself. It’s analogous to vCenter, except each SDX has its own SVM. This VM enables the SDX Administrator to create additional VMs on XenServer. 
Service VM (aka Management Service, aka SVM) – every SDX comes with this Virtual Machine.2018 Mar 20 – in Provision VPX section, added Crypto Units infoĬitrix CTX226732 Introduction to Citrix NetScaler SDX.Ĭitrix ADC SDX is normal Citrix ADC hardware, but runs XenServer hypervisor, and several virtual machines that are listed below:.2018 Mar 20 – updated upgrade instructions for 12.0 build 57.2018 Dec 21 – updated screenshots for SDX 12.1.Management Service nsroot Password and AAA.
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