NonStop Operations Guide for H-Series and J-Series RVUs

A Operational Differences Between Systems Running
G-Series, H-Series, and J-Series RVUs
Users familiar with systems running G-series RVUs will find several major differences in the
operational environment of systems running H-series and J-series RVUs. Although many of the
operations to be performed remain the same, the tools you use to execute these operations might
differ significantly. For H-series and J-series RVUs, these changes have been made:
• TSM does not support H-series or J-series; you must use OSM as the system management tool
for NonStop NS-series systems and NonStop BladeSystems.
• In power failures, there is no memory hold-up for H-series and J-series. Ride-through is available
only if the customer has a site uninterruptible power supply (UPS) or an in-cabinet UPS for all
the affected cabinets.
• TAPEBOOT is not supported in H-series and J-series.
• In H-series and J-series, native compilers and linkers have new names. Therefore, automated
scripts might require changing.
• Subvol for public libraries is SYSnn in G-series. In H-series and J-series, it is ZDLLnnn and
requires changing scripts.
• REPLACEBOOT only applies to TNS and TNS/R. It does not apply to TNS/E.
• On G-series servers, the OSS shell command ls displays the contents of directories without
visually distinguishing between subdirectories and files. On H-series and J-series systems, ls
displays the contents of directories with a visual distinction between subdirectories and files
-- subdirectory names are suffixed with a slash (/). This difference affects any OSS shell script
that relied upon processing the output of the ls command.
• For H-series and J-series, DSM/SCM installation default is Manage OSS Files. For G-series,
the default is not to manage OSS files.
• In H-series and J-series, KMSF swap files have a larger memory size. It is now four times
memory size per processor.
• Changes to automated debugging and dump mechanisms are required in H-series and J-series
because of the new debuggers and debugger commands.
• The H-series and J-series OSS environment does not support TNS execution. OSS programs
must be migrated to TNS/E native mode to run on an H-series or J-series system.
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