Full Discussion: disk adding through lvm
Operating Systems HP-UX disk adding through lvm Post 302115892 by blowtorch on Sunday 29th of April 2007 07:30:02 PM
1. ioscan -fnCdisk ## don't remember if there is a space between the C and disk
2. insf # to create the necessary special files (char and block device files)
3. pvcreate /dev/rdsk/cxtxdx

At this point, your disk is ready to be used in a volume group. You can either create a new volume group using the vgcreate command or you can add to an existing volume group using vgextend. For either command, you can look up the man page.

After you add the disk to a volume by creating/extending it, you can use lvcreate to create a new logical volume or lvextend to extend an existing logical volume. Again, look up the man page.
 
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VGEXTEND(8)						      System Manager's Manual						       VGEXTEND(8)

NAME
vgextend - add physical volumes to a volume group SYNOPSIS
vgextend [-A|--autobackup{y|n}] [-d|--debug] [-h|--help] [-v|--verbose] VolumeGroupName PhysicalVolumePath [PhysicalVolumePath...] DESCRIPTION
vgextend allows you to add one or more initialized physical volumes ( see pvcreate(8) ) to an existing volume group to extend it in size. OPTIONS -A, --autobackup y/n Controls automatic backup of VG metadata after the change ( see vgcfgbackup(8) ). Default is yes. -d, --debug Enables additional debugging output (if compiled with DEBUG). -h, --help Print a usage message on standard output and exit successfully. -v, --verbose Gives verbose runtime information about lvextend's activities. Examples "vgextend vg00 /dev/sda4 /dev/sdn1" tries to extend the existing volume group "vg00" by the new physical volumes (see pvcreate(8) ) "/dev/sdn1" and /dev/sda4". DIAGNOSTICS
vgextend returns an exit code of 0 for success and > 0 for error: 1 no volume group name on command line 2 volume group name not given as first argument 3 no physical volume(s) on command line 4 invalid volume group name 5 error checking existence of volume group 6 inactive volume group 7 error reading VGDA 8 volume group is set to not extendable 9 maximum physical volume number of volume group exceeded 10 error reading all physical volumes 11 error setting up VGDA 12 error extending VGDA in kernel 13 error writing VGDA to physical volume(s) 95 driver/module not in kernel 96 invalid I/O protocol version 97 error locking logical volume manager 98 invalid lvmtab (run vgscan(8)) 99 invalid command line ENVIRONMENT VARIABLES
LVM_AUTOBACKUP If this variable is set to "no" then the automatic backup of VG metadata is turned off. LVM_VG_MAX_BACKUPS This variable determines the backup history depth of kept VGDA copy files in /etc/lvmconf. It can be set to a positive number between 0 and 999. The higher this number is, the more changes you can restore using vgcfgrestore(8). See also lvm(8), vgcreate(8), vgreduce(8), pvcreate(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS VGEXTEND(8)

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