Best practices for designing, implementing and maintaining a LiveUpdate Administrator (LUA) infrastructure.
LUA is not recommended for the following scenarios:
Symantec products download updates from the Internet using a LiveUpdate client by default. Configuring and administering an LUA infrastructure adds several layers of complexity to the process of updating Symantec products.
Use the following guidelines to ensure the extra complexity and bandwidth usage generated by LUA provide a net benefit. See When to use LiveUpdate Administrator for more information on recommended use cases for LUA.
New versions of LUA contain fixes for customer reported issues, as well as vulnerability mitigations, stability and usability enhancements, and new features. Whenever possible, use the latest version of LUA for any new LUA deployments, and upgrade existing LUA servers to the latest version as soon as possible.
See Download LiveUpdate Administrator for the latest version of LUA.
To prevent resource contention or performance problems, ensure the following:
Note: Installing LUA on the same computer as SEPM is not supported.
LUA uses a significant amount of I/O and network bandwidth. Virtual Desktop Infrastructure (VDI) environments tend to use large amounts of relatively fast storage shared among many virtual machine (VM) computers. Even though the very fast shared storage is much faster than a single desktop hard drive, the I/O bandwidth available to individual virtual machines running on shared storage is often much smaller than the I/O bandwidth available on a physical machine with relatively slow storage.
To avoid I/O and network resource issues, Symantec recommends the following if LUA must be installed on a VM:
LUA requires a very large amount of free disk space to function properly. Ensure there is enough available storage to house all content downloaded/distributed by LUA without running out of free space. Use the following guidelines when configuring an LUA server's disk(s):
Do not daisy chain LUA servers. For more information, see Configure LiveUpdate Administrator to download updates from another Liveupdate Administrator
LUA has a limited amount of memory and threads to handle scheduled tasks like downloading and distributing content, purging downloads and distributions, and database maintenance. These resources are also shared by built-in testing and production distribution centers. Use the following guidelines to ensure smooth operation of LUA's tasks:
Schedule database maintenance to run weekly. Do not schedule any other tasks to run at the same time as the weekly database maintenance schedule.
Monitor the bandwidth usage of LUA over time to ensure network stability. Bandwidth utilization statistics can be compared to estimated bandwidth usage based on the information in this section.