Boot Sequence: Quick Reference

PA-RISC:

1. ISL (Initial System Loader)

2. hpux (secondary system loader)

3. /stand/vmunix (kernel)

Integrity:

1. EFI (Extensible Firmware Interface)

2. hpux.efi

3. /stand/vmunix

Fragmentation And Defragmentation In HPUX

# fsadm -b new_size <mount_point> : Increase the size of the FS.

# fsadm -D <mount_point> : Determine if directory fragmentation affects performance.

# fsadm -E <mount_point> : Determine if file system fragmentation affects performance.

# fsadm -d <mount_point> : Reorganize the directories to reduce fragmentation and reclaim waste space.

# fsadm -e <mount_point> : Reorganize the filesystem extents to reduce fragmentation and reclaim waste space.

# fsadm -E -e <mount_point> : Reports on fragmentation before and after the actual defragmentation.

Granting Users Limited Access to SAM

# sam -r  : To give limited access to super user access to non super user.

This activates the Restricted SAM Builder, which allows you to enable or disable selected SAM areas for users.

For each user given restricted access, SAM creates a file /etc/sam/custom/login_name.cf that defines the user's SAM privileges.

SAM uses this file to give users access to the indicated areas.

Using SAM with an X Window System In HPUX

Make sure X11-RUN fileset is installed.

To view the current settings of the environment variables, enter:

env | more

The DISPLAY environment variable is usually set in the .profile file for Korn and POSIX shells and in the .login file for the C shell as follows:

DISPLAY=hostname:0.0 (Korn and POSIX shell)
export DISPLAY
setenv DISPLAY hostname:0 (C Shell)

WWID In Linux

Here is a file from where you can get the WWID Information for the LUN's assigned to your Linux Server.

Provided Multipath is in place:

RHEL 5 : /var/lib/multipath/bindings

RHEL 6 : /etc/multipath/bindings

Setting Up Non Expiry Password In HPUX

For non-trusted system:

passwd -x -1 username

You can simply give the nonexpiry passwords as below

#passwd -x -1 username

and see the change after

#passwd -s username

/usr/lbin/modprpw -m exptm=0,lftm=0,mintm=0,expwarn=0,llog=0 

Access is denied by the AUTH_MAXTRIES option in security(4).

#userdbset -d -u username auth_failures