In the world of Network Attached Storage (NAS), Synology is widely regarded as the gold standard. Their hardware is robust, but it is their operating system—DiskStation Manager (DSM)—that truly sets them apart. For many technology enthusiasts and IT professionals, the high cost of Synology hardware has led to a thriving subculture of "Xpenology"—the practice of installing Synology’s DSM on non-Synology, third-party hardware.
Version 5.2-5644 was known in the community for a "silent update" from Synology that could break custom bootloaders. For official Synology users, this model can currently be upgraded to later versions like DSM 7.1.1 , though 5.2-5644 is maintained for legacy compatibility.
The famous for DS3615xs expects the exact build 5644 . Using any newer .pat (e.g., 5967 or 6.2-23739) will result in: dsm ds3615xs 5644.pat
: Certified for VMware vSphere, Citrix, and Microsoft Hyper-V environments.
(to avoid malware):
is a famous combination in the Xpenology community (running Synology DSM on non-Synology hardware). That specific .pat file was widely used as the base for bootloaders like XPEnoboot 5.2-5644.
The "DS3615xs" designation is crucial. The actual Synology DS3615xs unit utilizes an Intel processor (specifically the Intel Atom C2538). This is significant because it uses the x86_64 architecture. In the world of Network Attached Storage (NAS),
: One of the early versions to refine the use of the Btrfs file system, providing advanced data protection and snapshots.
. It was released in late 2015 and is a common target for users of Version 5
: Addressed multiple vulnerabilities in the Linux Kernel and OpenSSL to maintain system integrity. Installation & Download