HP-UX 11i v3 March 2012 Release Notes

• New: pselect() System Call: Added to meet the UNIX 2003 Standard. Provides additional
parameter options to users of the select() system call. Timeout granularity may be specified
in seconds and nanoseconds. A new signal mask parameter is also available to be used for
the duration of system call.
• psrset Command: Enhanced to manage the Real Time Extension processor set; enhanced
to support one more PSET attribute type called LCPU.
• pstat_getstatic() System Call: Information returned by pstat_getstatic() may
now change between reboots due to manually or automatically generated administrative
changes in the associated kernel tunables, online addition/deletion of resources, or other
events. Likelihood of it changing is infrequent.
• New: Ptools Process Management Tools: New set of process management tools that support
easy process tracking and debugging. Consists of the following commands: pmap, pfiles,
pgrep, pkill, ptree.
• ptrace() System Call: Obsolete in HP-UX 11i v3.
• rc Shell Script: When a system needs reboot for some reason, messages in the file /etc/
rc.bootmsg will be displayed before the system is rebooted.
• sar Command: Enhanced to report activity for each HBA and Tape device.
• setboot Command: Enhanced to provide support for setting the High Availability (HA)
Alternate boot path; supports the setting of a firmware test for the next boot on the
Itanium®-based platform; modified to take a persistent DSF or a lunpath hardware path as
valid input to set the bootpath for next boot; enhanced to enable or disable hyperthreading
environment for the next boot on a Dual-Core Intel ® Itanium® 2 platform.
• sigblock(2), sigsetmask(2), sigstack(2), sigvector(2), and bsd_signal(3C): Manpages are
obsolete.
• spray Command: Provides two new options: -d, which specifies how many microseconds
to pause between sending each packet, and -t, which specifies class of transports.
• New: swapctl() System Call: Allows you to configure primary swap to take effect on the
next boot. Previously this could only be done via the commands lvlnboot and vxvmboot.
swapon() system call is deprecated.
• swapon and swapinfo Commands: swapon command enhanced to support setting/unsetting
of primary swap device for next boot; swapinfo command supports new -s option to display
settings of primary swap for next boot.
• sysdef Command: Deprecated. Reports incorrect values for some tunable parameters such
as msgmap, sema, and shmem.
• syslogd Command: Enhanced to continue logging to log files even after the size of the log
file grows beyond 2GB; enhanced to log multibyte message strings correctly.
• usermod has been modified to selectively prevent the movement of home directories with -m
option.
• UNIX 2003 Compliance: All commands are modified/enhanced to conform to UNIX 2003
Standards. The UNIX 2003 changes which do not affect HP-UX compatibility are available
by default. Otherwise, in order to get UNIX 2003 behavior, the variable UNIX_STD has to
be defined in the environment.
86 What is new