Installation guide

G.6.10 scsimgr Utility for Creating Device Special Files
The scsimgr utility creates device special files for newly attached disk and
tape devices. This utility is automatically invoked at system boot time. You
can execute the command to add device special files for all disk and tape
devices attached to a specified SCSI bus at any time. See the scsimgr
(8)
reference page for further details.
G.6.10.1 ULTRIX Migration Issues
There are no ULTRIX migration issues.
G.7 Standards
This release complies with many new and changes standards. See
standards
(5) for more information.
G.7.1 Realtime is Compliant with Final POSIX 1003.1b Standard
Interfaces
DIGITAL UNIX Version 4.0 now completes the implementation of the
POSIX 1003.1b standard interface as approved by the IEEE standards
board in September 1993 (IEEE Std 1003.1b-1993, Realtime Extension).
The new features are described in Section G.8.9, Section G.8.10, and
Section G.8.11. See the Guide to Realtime Programming for more
information.
G.7.1.1 ULTRIX Migration Issues
There are no ULTRIX migration issues.
G.7.2 DECthreads is Compliant with Final POSIX 1003.1c Standard
Interfaces
The DECthreads library libpthread.so now implements the POSIX
1003.1c standard interface as approved by the IEEE standards board in
June 1995 (IEEE Std 1003.1c-1995, POSIX System Application Program
Interface). The new POSIX (pthread) interface supported with DECthreads
is the most portable, efficient, and powerful programming interface for a
multithreaded environment. These interfaces are defined by pthread.h.
See the Guide to DECthreads for more information.
G.7.2.1 ULTRIX Migration Issues
There are no ULTRIX migration issues.
Migration from ULTRIX Version 4.5 to DIGITAL UNIX Version 4.0B G–9