Managing Systems and Workgroups: A Guide for HP-UX System Administrators
Configuring a System
Reconfiguring the Kernel (Prior to HP-UX 11i Version 2)
Chapter 3284
To add, remove, or modify the root file system, you will not be able to
use SAM. Instead, re-install your system or see “Creating Root
Volume Group and Root and Boot Logical Volumes” on page 578 if
you are using logical volumes.
NOTE If you have cold-installed an HP 9000 Model T500 and you are
configuring a large number of file systems (approximately 100 or more),
some default table sizes in the kernel may be too small for your system to
successfully boot. To boot your system, reconfigure the install kernel
before the first boot. Refer to “Steps to Reconfigure the Kernel” on
page 284 to perform this, keeping in mind that SAM is not available at
this point. The following settings, although not necessarily optimal for
the system, will allow the kernel to be booted:
Alternatively, you can do the following:
• Reconfigure the kernel and change the value of
maxusers
to a large
value, such as 200.
• Select an appropriate bundle of SAM-tuned parameters by doing the
following:
— Open the “SAM Kernel Configuration” menu item
— Select “Configurable Parameters”
— Pull down the “Actions” menu
— Select “Apply Tuned Parameter Set”
For further details, refer to Installing HP-UX 11.0 and Updating HP-UX
10.x to 11.0.
Steps to Reconfigure the Kernel
You can use SAM or HP-UX commands to reconfigure the kernel.
Table 3-6 useradd Options
Kernel Parameters Default Recommended Setting
ninode
476 2048
nproc
276 1024
nfile
790 2048