11-05-2003
Hello,
The technical difference is that SunOS is the operating system, while Solaris is the "operating environment" including the OS plus some other stuff. In fact, if you install Solaris 9 on a Sun server then do uname -a the OS is reported as SunOS 5.9.
However everybody uses Solaris to mean the current version of Sun's operating system so that usage is fine too.
As far as the numbers go:
SunOS 4 was also called Solaris 1. This was still based on bsd Unix. When they switched to Solaris 2 they updated the major number for SunOS to 5. So for example Solaris 2.4 uses the SunOS 5.4 operating system while Solaris 8 uses SunOS5.8. Solaris 2/SunOS 5 on up are sysV based instead of bsd.
Note - There is no such thing as Solaris 2.7, 2.8 or 2.9. It is one of my pet peeves that people call it that, even lots of Sun techs do for some reason . . . Sun changed the naming scheme after Solaris 2.6 to Solaris 7, 8, and 9 instead of following hte old 2.X nomenclature. This kinda makes sense, since each point release was a major release coming about 2 years apart on average. So having them all be 2.something was not too accurate.
Hope that wasn't too long winded, and hope it helps.
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LEARN ABOUT OPENSOLARIS
ibtl
ibtl(7D) Devices ibtl(7D)
NAME
ibtl - Solaris InfiniBand Transport Layer
DESCRIPTION
InfiniBand (IB) is an I/O technology based on switched fabrics. The Solaris InfiniBand Transport Layer (IBTL) is a Solaris kernel misc mod-
ule and adheres to the IB Architecture Version 1.1 specification and provides a transport layer abstraction to IB client drivers.
IBTL implements the programming interfaces for the Solaris InfiniBand Transport Framework (IBTF), consisting of the IB Channel Interface
(CI) and the IB Transport Interface (TI).
The CI consists of Host Channel Adapters (HCAs) and HCA drivers. A host is attached to the IB fabric through the CI layer. The Solaris
InfiniBand CI is Sun's API rendering of the InfiniBand Architecture (IBTA) "verbs" specification.
The Solaris InfiniBand TI is the kernel service driver interface into the Solaris InfiniBand Transport Framework. It provides transport and
communications setup programming interfaces for Unreliable Datagram (UD) and Reliable Connected (RC) transport types only.
FILES
/kernel/misc/ibtl 32-bit x86 ELF kernel misc module
/kernel/misc/amd64/ibtl 64-bit x86 ELF kernel misc module
/kernel/misc/sparcv9/ibtl 64-bit SPARC ELF kernel module
ATTRIBUTES
See attributes(5) for a description of the following attribute:
+-----------------------------+-----------------------------+
|ATTRIBUTE TYPE |ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Consolidation Private |
+-----------------------------+-----------------------------+
|Availability |SUNWhea, SUNWib |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5), ib(7D), ibcm(7D), ibdm(7D)
InfiniBand Architecture Specification, Volume 1: Release 1.1
SunOS 5.11 9 Oct 2004 ibtl(7D)