Single target only neither Citrix nor Microsoft support merge replication.

Some upgrades are performed differently for HADR than for single components.

Security vulnerability fixed in 1912.1000, 3.12.5001, 3.0.8001.

The FQDN resolves to the Load Balancing VIP, not a single server.

If load balanced, then ADC monitor is of type CITRIX-XD-DDC so ADC can detect Local Host Cache outages.

For multiple data centers, prefer separate farms in each data center with local SQL.

Monitoring tool alerts SQL DBAs of any performance or availability issues.

Applications are not published to both App Groups and Delivery Groups.

More datastores means more copies of master image snapshots, which means longer time to push out an updated Master image.

Windows 2019 RDS Licensing also works with Windows 2016 RDSH servers.

Might have to reconfigure the domain name after every Director upgrade.

VDA IP Subnet router forwards DHCP requests to more than one DHCP server.

CPU Metric is too volatile, and can cause a Denial of Service and uneven distribution of sessions.

Current Load Index values should be almost the same on every RDSH VDA and not be anywhere near 10000.

Allocated VM Memory matches or exceeds memory Committed Bytes Hypervisor monitoring cant show actual VM memory usage.

Antivirus is optimized for non-persistent machines (aka VDI).

User Layers are proprietary to Citrix and might not support every application.

Or Boot ISOBoot Partition has multiple Provisioning Server addresses.

Subnets router forwards DHCP requests to multiple DHCP servers.

Some WEM user settings are per-machine (per configuration set) only.

WEM cant replace group policies since theres currently no.admx support.

WEM is proprietary to Citrix and requires WEM skills to troubleshoot.

Citrix Receiver For Mac Black Screen