Explicitly compiled for Intel Itanium 64-bit processors. SQL Server 2008 R2 was one of the final enterprise platforms to offer native Itanium support before Microsoft and the broader industry pivoted entirely toward x64 hardware for high-performance computing. Core Capabilities of the Standard Edition
A .patched SQL Server ISO is not an authentic Microsoft download. It has been modified. Use it with extreme caution.
Supports basic 2-node Failover Cluster Instances (FCI) and synchronous database mirroring. Explicitly compiled for Intel Itanium 64-bit processors
Summary
The filename en_sql_server_2008_r2_standard_x86_x64_ia64_dvd_521546.iso is a detailed specification of the software: It has been modified
The ISO file with the name "en_sql_server_2008_r2_standard_x86_x64_ia64_dvd_521546.iso" is a disk image file that contains the installation files for SQL Server 2008 R2 Standard. This file is approximately 2.5 GB in size and is compatible with x86, x64, and IA64 architectures. The file can be downloaded from Microsoft's official website or other reliable sources.
To help you get this legacy database running smoothly, let me know: Explicitly compiled for Intel Itanium 64-bit processors
When deploying this specific edition, it is vital to remember the built-in compute and memory ceilings imposed by the Standard license:
The default installation path is :\Program Files\Microsoft SQL Server\nnn\. Microsoft Learn Windows Server 2008 R2 - Microsoft Lifecycle