so many unices Post: 302077637

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Top Forums UNIX for Dummies Questions & Answers so many unices Post 302077637 by amro1 on Friday 23rd of June 2006 04:45:25 PM

06-23-2006

Banned

Here...

The primary reason is that commercially available systems are of way superior quality and capabilities as they better integrated with proprietary hardware. For example SUN and AIX systems allow to exchange or upgrade memory and processors without stopping system. They have storage solutions unheard in pc world.
The applications written for AIX and Solaris are of incomparably higher quality and offer range of technical abilities even not conceivable at pc level (backup libraries of thousands of tapes, multi-volume, multi-group, multi-span storage solutions).
Commercially available UNIXes have great level of integrity as the systems, hardware and integration come from the same hands so the general level of reliability, upgradeability and expandability is way above. All upgrades before been published are tested before on all standard configurations because the hardware is standard. As the hardware is limited by brand the drivers are of incomparably higher quality, offer superior communication modes and so on.
Sun systems may have hundreds of dynamically redistributed CPUs, hundreds of gigabytes of memory and hundreds of terabytes of disk space.

Let say the level of system solutions implemented in AIX circa 2000 is even not on the horizon of possibilities of Linux or Free BDS. They are good systems for what they are good, but they are not peer to the real stuff.

amro1

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LEARN ABOUT OPENSOLARIS

lx

lx(5)							Standards, Environments, and Macros						     lx(5)

NAME

       lx - Linux branded zone

DESCRIPTION

       The  lx	brand  uses  the branded zones framework described in brands(5) to enable Linux binary applications to run unmodified on a machine
       with a Solaris Operating System kernel.

       The lx brand includes the tools necessary to install a CentOS 3.x or Red Hat Enterprise Linux 3.x distribution inside  a  non-global  zone.
       The  brand  supports  the  execution of 32-bit Linux applications on x86/x64 machines running the Solaris system in either 32-bit or 64-bit
       mode.

   Supported Linux Distributions
       The lx brand emulates the system call interfaces provided by the Linux 2.4.21 kernel, as modified by Red Hat in the RHEL 3.x distributions.
       This kernel provides the system call interfaces consumed by the glibc version 2.3.2 released by Red Hat.

       In addition, the lx brand partially emulates the Linux /dev and /proc interfaces.

   Configuration and Administration
       The  lx brand supports the whole root non-global zone model. All of the required linux packages are installed into the private file systems
       of the zone.

       The zonecfg(1M) utility is used to configure an lx branded zone. Once a branded zone has  been  installed,  that  zone's  brand	cannot	be
       changed	or removed. The zoneadm(1M) utility is used to report the zone's brand type and administer the zone. The zlogin(1) utility is used
       to log in to the zone.

   Application Support
       The lx zone only supports user-level Linux applications. You cannot use Linux device drivers, Linux kernel modules, or Linux  file  systems
       from inside an lx zone.

       You cannot add any non-standard Solaris devices to a Linux zone. Any attempt to do so will result in a zone that zonecfg(1M) will refuse to
       verify.

       You cannot run Solaris applications inside an lx zone. Solaris debugging tools such as DTrace (see dtrace(1M)) and mdb (see mdb(1)) can	be
       applied to Linux processes executing inside the zone, but the tools themselves must be running in the global zone. Any core files generated
       are produced in the Solaris format, and such files can only be debugged with Solaris tools.

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWlxr, SUNWlxu		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mdb(1), zlogin(1), zonename(1), dtrace(1M), zoneadm(1M), zonecfg(1M), brands(5), zones(5), lx_systrace(7D)

SunOS 5.11							    19 Sep 2006 							     lx(5)