H06.03 Release Version Update Compendium

H06.03 Overview
H06.03 Release Version Update Compendium540008-002
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Networking Differences Between the H-Series and
G-Series RVUs
Different command-line and system-level debugging tools are provided in H-series
RVUs.
All H-series libraries supplied by HP are dynamic-link libraries (DLLs). Shared run-
time libraries (SRLs) are not supported. H-series RVUs provide more extensive
support for DLLs than G-series RVUs.
All TNS/E native code is position-independent code (PIC).
In the TNS/E environment, CEXTDECS files use the int data type for 32-bit
values. In TNS and TNS/R environments, CEXTDECS uses the long data type for
32-bit values.
As of H06.03, the TNS/E linker (ELD) does not have the LIBCOBEY feature of the
TNS/R linker and, therefore, H-series build scripts must identify all libraries
required for linking. The H06.03 SUT includes the LIBCTXT file, which performs a
similar function for TNS/E linking. LIBCTXT and libc.txt contain a list of ELD linker
directives that identify the equivalent set of C library TNS/E native code DLLs for
TNS/E native mode C programs.
The HP Tandem Development Suite (TDS) is not available in H-series RVUs. (A PC-
based development environment is provided by the HP Enterprise Toolkit—NonStop
Edition (ETK), which is fully supported and enhanced in H-series.)
Both the G-series and the H-series RVUs support TNS execution modes (interpreted
and accelerated) and native execution mode. Consequently, these migration paths are
possible:
TNS mode on a G-series system to TNS mode on a system running H-series
TNS mode on a G-series system to native mode on an H-series system (TNS/E
native mode)
Native mode on a G-series system (TNS/R native mode) to native mode on an
H-series system (TNS/E native mode)
For detailed descriptions of the migration paths for your applications, see the H-Series
Application Migration Guide.
Networking Differences Between the H-Series
and G-Series RVUs
The main difference between the NonStop S-series server and the Integrity NonStop
server is that some of the networking technology of the NonStop S-series server has
been ported to the Integrity NonStop server, but the hardware for it is accessible only
by connecting to the NonStop S-series server I/O enclosure. In the Integrity NonStop
server I/O adapter module enclosure (IOAM), only the Gigabit Ethernet 4-port
ServerNet adapter (G4SA) is supported.
The G4SA is the only networking adapter that can be installed in an IOAM enclosure
and is installed in slots 1 through 5. There are two IOAMs in an IOAM enclosure. Other