01-11-2004
Upgrading a B1000
Hi all
I have a HP B1000 with HP-UX 11 installed but recently I have aqquired 11i on CD, after reading the documentation it states that 11i can be installed on a B1000 with a firmware update, which is included on the 11i media, but I have been told it will be impossible to install 11i on my B1000 can someone please clarify the situation for me.
Thanks in advance
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LEARN ABOUT HPUX
nsysmap64
nsysmap(5) File Formats Manual nsysmap(5)
NAME
nsysmap, nsysmap64 - number of entries in a kernel dynamic memory allocation map
VALUES
Default
8400
Allowed Values
DESCRIPTION
Note: In HP-UX 11i Version 3, these tunables are no longer present. The system will establish an initial size for the table, and
increase the size as needed. This manual page will be remove in a future release.
Pre-Release 11i Version 3 Usage
This value sizes the kernel dynamic memory resource map, an array of address/length pairs that describe the free virtual space in the ker-
nel's dynamic address space.
This array has historically been statically-sized. That means certain pathological workloads that fragment the kernel address space will
result in too many entries for the array. Rather than panicking when this condition occurs, the system throws away the last entry, which
results in "leaked" kernel virtual address space. If this overflow happens often enough, the system eventually runs out of virtual space
and will panic with the following message:
By making the map size tunable, the system can automatically scale the map size according to the system workload size and avoid this prob-
lem. If the automatic scaling does not work, you can hand-tune to fit a particular workload. When the default value is overridden, the
kernel may increase the value beyond the your specification depending on the system size.
There are different tunables for 32- and 64-bit kernel because the 64-bit kernel has more virtual address space. The tunable controls
32-bit kernels and the tunable controls 64-bit kernels.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
and were developed by HP.
OBSOLETED
Tunable Kernel Parameters nsysmap(5)