For SCL, Synopsys recommends single (not redundant) license servers with the following system hardware & configuration:

• OS: a 64-bit server running Red Hat Enterprise Linux 4.x/5.x or Solaris 10
• UltraSPARC or x86_64 processor (AMD/Intel)
• Multiple CPUs or cores
• 2 GHz CPU speed or better
• 4 GB of RAM
• 1 Gbit Ethernet network card & 1 Gbit switch
• Adequate soft file descriptors (typically 8192)

Note:

Other platforms are also supported, but are recommended only for small quantities of licenses. For details on Synopsys recommendations, see the SCL Combined Vendor Daemon Migration Checklist.

Supported SCL Platforms by Operating System & Platform Keyword

For a list of Operating Systems supported under SCL 10.9.3 & SCL 11.x, see the table below.

IMPORTANT:
SCL 11.1 or later is required to serve cvd-format licenses for tools based on the Synplicity synplctyd daemon. The following limitations apply:

• For Synplicity tools, if you have a dongle on a Linux platform, you must install the 32-bit binaries (for example, "linux" or "suse32"). You can run the 32-bit daemon on a 64-bit OS.
  
• For Synplicity tools, if you are using a Sun Solaris SPARC 64-bit platform, you must install the 32-bit "sparcOS5" binary.

Synopsys Common Licensing Supported Platforms by OS & Keyword
Platform	Operating System	Platform Keyword (use for downloading & installation)
AMD or Intel x86_64	Red Hat Enterprise Linux 4 Update 6 Compatible: RHEL 4.7, RHEL 5 Note: RHEL 3 is not supported after June 1, 2010	amd64 (64-bit)
AMD or Intel x86_64	Novell SUSE Linux Enterprise 9 SP3 Compatible: SUSE Linux Enterprise 10 SP1	suse32 (32-bit) suse64 (64-bit)
HP PA-RISC 2.x	HP-UX 11 Note: HP-UX support is not supported starting with SCL 11.0	hp32 (32-bit) hp64 (64-bit)
IBM RS/6000	AIX 5.1 Compatible: AIX 5.3	rs6000 (32-bit) aix64 (64-bit)
IA-32 (x86) Linux	Red Hat Enterprise Linux 4 Update 6 Compatible: RHEL 4.7, RHEL 5 Note: RHEL 3 is not supported after supported after June 1, 2010	linux (32-bit)
IA-32(x86) Windows	Microsoft Windows XP Compatible: Windows Server 2003	windows (32-bit)
Sun x86_64	Sun Solaris 10	x86sol32 (32-bit) x86sol64 (64-bit)
Sun SPARC	Sun Solaris 10 Compatible: Solaris 9 Note: Solaris 8 (5.8) is not supported after supported after June 1, 2010	sparcOS5 (32-bit) sparc64 (64-bit)

More Information:
For Synplicity SCL / cvd migration information, see the Synplicity CVD Migration page.
For a list of vendor daemons incorporated into SCL, click here.