04-28-2009
The next will be /var unless it was installed with a FS of 2 GB...
A few things: Is your root VG (vg00) mirrored? Which means whatever space left in the VG is to be divided by 2...
/var will be like /usr: SAM uses it... so unless you have OnlineJFS you are to learn "how to" for a few things without SAM, the easy way round is to have a ignite tape, but I suppose you have no DAT device installed?
So its not complicated:
1 - Bring the Box into single user (or boot into single user...)
2 - lvextend -L SSS /dev/vg00/lvolX (SSS in Megabytes...)
3 - umount /dev/vg00/lvolX
4 - extendfs /dev/vg00/rlvolX (notice the "r" in rlvolX)
5 - mount /dev/vg00/lvolX
If it does not automatically backup lvm structure, ->
vgcfgbackup vg00
You should know where the system saves LVM and Filesystem information:
look at /etc/lvmconf /etc/lvmtab /etc/fstab
The commands you need to know for disks and LVM:
pvcreate
pvdisplay
pvchange
vgcfgbackup
vgcfgrestore
vgcreate
vgextend/vgreduce
vgexport/vgimport
vgremove
vgdisplay
lvdisplay
lvcreate
lvextend
lvremove
newfs
extendfs
Not bad for a start? (Read the man pages and feel welcome to ask here if some of it isnt clear...)
Good luck
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LEARN ABOUT OSF1
prestosetup
prestosetup(8) System Manager's Manual prestosetup(8)
NAME
prestosetup - Configures the Prestoserve software
SYNOPSIS
/usr/sbin/prestosetup
DESCRIPTION
The prestosetup command is an interactive facility that allows you to set up Prestoserve on your system. Prestoserve speeds up synchronous
disk writes, including NFS server access, by reducing the amount of disk I/O. The prestosetup command also allows you to modify the
Prestoserve configuration on your system.
In order to use Prestoserve, your system must contain the necessary Prestoserve hardware.
The prestosetup command verifies that the Prestoserve license is registered, the Prestoserve utilities are installed, and the Prestoserve
software is configured into your kernel. Note that some Prestoserve hardware configurations require different forms of kernel configura-
tion. If the Prestoserve hardware was installed in your system when the operating system was installed, the Prestoserve software will be
automatically configured into your kernel. If not, you may have to rebuild your kernel to include the correct Prestoserve controller
device before you run prestosetup.
The prestosetup command configures Prestoserve on your system by asking the following questions: Do you want Prestoserve automatically
enabled at system startup? Which file systems do you want to accelerate? To specify a file system, use the mount point. Do not specify a
block device because some functional subsystems, such as the Advanced File System (AdvFS), can map more than one block device to a mount
point. Do you want to start Prestoserve now?
After you have entered the necessary information, the prestosetup command displays the information that you entered and prompts you to con-
firm that the information is correct. If the information is not correct, the prestosetup command exits and no changes are made. If the
information is correct, the prestosetup command does the following: Creates the /dev/pr0 Prestoserve control device if necessary. Creates
the /etc/prestotab file and includes the mount points for the file systems that you want automatically accelerated when the system starts
up. Updates the /etc/rc.config file and sets the appropriate run-time configuration variables. Updates the /sbin/init.d/presto startup
script with the Prestoserve configuration information from the /etc/rc.config file.
If you choose not to automatically enable Prestoserve when you start up the system, you must manually start the prestoctl_svc daemon and
use the presto command to accelerate the file systems.
The prestosetup command also allows you to modify the Prestoserve configuration on your system. For example, you may want to add addi-
tional file systems to the list in the /etc/prestotab file.
FILES
Lists the mount points for the file systems that you want automatically accelerated when the system starts up.
SEE ALSO
Commands: presto(8), prestoctl_svc(8)
Files: prestotab(4)
Guide to Prestoserve
prestosetup(8)