kctune is the administrative command for HP-UX kernel tunable parameters. It gives information about tunable parameters and their values, and makes changes to tunable values.
This command can work with any saved kernel configuration, or with the currently running kernel configuration, depending on the use of the -c flag (see below). By default, changes to the currently running kernel configuration are applied immediately. Some changes cannot be applied without a reboot; if any such changes are requested, or the -h flag is given, all changes on the kctune command line will be held until next boot.
Super-user permissions are required when making changes to tunable values.
EXAMPLES
To see all tunables and their current values:
$ kctune
To see which tunables have new values being held until next boot:
$ kctune -D
To see verbose information about a tunable:
$ kctune -v tunablename
To set a tunable value on the running system:
$ kctune tunable=12
To set a tunable value to be used when the system reboots:
$ kctune -h tunable=12
To increase a tunable's value by 100:
$ kctune tunable+=100
There are 2 ways to mount iso file in hp-ux 1) using LVM method (to copy ISO into a logical volume) is the same as for older HP-UX releases: 1. Find out the size of the ISO image: # du -k /data/myImage.iso NOTE: The size will be in Kb. 2. Create a logical volume for the ISO image: # lvcreate -L -n iso /dev/vg00 NOTE: The name of the logical volume will be /dev/vg00/iso 3. Copy the ISO file to the raw logical volume: # dd if=/data/myImage.iso of=/dev/vg00/riso bs=64k 4. Create a temporary directory and mount the /dev/vg00/iso volume # mkdir /iso_image # mount /dev/vg00/iso /iso_image NOTE: For HP-UX 11.11 you must install the latest CDFS patches: PHCO_25841 Add Rock Ridge extension to mount_cdfs(1M) PHKL_26269 Rock Ridge extension for ISO-9660 PHKL_34153 CDFS cumulative patch 2) Available in HP-UX 11.31 0909: ISOIMAGE-ENH. Provides a new DLKM module fspd. Required to mount, read and umount the ISO image file. The comm...
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