|
Solaris MC is a prototype distributed operating system for multi-computers
(i.e., clusters of nodes) that provides a single-system image: a cluster
appears to the user and applications as a single computer running the
SolarisTM operating system. Solaris MC is built as a set of
extensions to the base Solaris UNIX ® system and provides the same
ABI/API as Solaris, running unmodified applications. The components of
Solaris MC are implemented in C++ through a CORBA-compliant object-oriented
system with all new services defined by the IDL definition language.
Objects communicate through a runtime system that borrows from Solaris
doors and Spring subcontracts. Solaris MC is designed for high availability:
if a node fails, the remaining nodes remain operational. Solaris MC has a
distributed caching file system with UNIX consistency semantics, based on
the Spring virtual memory and file system architecture. Process operations
are extended across the cluster, including remote process execution and a
global /proc file system. The external network is transparently accessible
from any node in the cluster. The prototype is fairly complete -- we regularly
exercise the system by running multiple copies of an off-the-shelf
commercial database system.
|
