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EulerOS is a commercial Linux distribution developed by Huawei based on Red Hat Enterprise Linux [2] to provide an operating system for server and cloud environments. [3] [4] Its open-source community version is known as openEuler; the source code of openEuler was released by Huawei at Gitee in 2020.
Red Hat Enterprise Linux is a commercial enterprise operating system and has its own set of test phases including alpha and beta releases which are separate and distinct from Fedora development. Originally, Red Hat sold boxed versions of Red Hat Linux directly to consumers and business through phone support.
SUSE Linux Enterprise (SLE) is a Linux-based operating system developed by SUSE. It is available in two editions, suffixed with Server ( SLES ) for servers and mainframes , and Desktop ( SLED ) for workstations and desktop computers .
The server is marketed and positioned as a scale-up platform where scale-out becomes inefficient. Typically the ES7000 is utilized as a platform for homogeneous consolidation, large databases ( SQL Server and Oracle ), Business intelligence , Decision Support Systems , ERP , virtualization , as well as large Linux application hosting .
Linux is the leading operating system on servers (over 96.4% of the top one million web servers' operating systems are Linux), [48] leads other big iron systems such as mainframe computers, [clarification needed] [49] and is used on all of the world's 500 fastest supercomputers [h] (as of November 2017, having gradually displaced all competitors).
The operating system is still used today in its most recent versions (GCOS 7 and GCOS 8) on servers and mainframes produced by Groupe Bull, primarily through emulation, to provide continuity with legacy mainframe environments. GCOS 7 and GCOS 8 are separate branches of the operating system and continue to be developed alongside each other.
Both systems run Linux operating systems: Red Hat Enterprise Linux or SUSE Linux Enterprise Server and include a built-in PowerVM [for PowerLinux] hypervisor that supports up to 10 VMs per core and 160 VMs per server. The IBM PowerLinux 7R4 is a POWER7+ processor-based system in a 5U package with two or four sockets and 16 or 32 cores.
Oracle Linux (abbreviated OL, formerly known as Oracle Enterprise Linux or OEL) is a Linux distribution packaged and freely distributed by Oracle, available partially under the GNU General Public License since late 2006. [5]