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Operating Systems AIX Different sizes with getconf DISK_SIZE and lspv Post 302965793 by -=XrAy=- on Wednesday 3rd of February 2016 06:17:06 AM
Old 02-03-2016
Hi,

i guess the size of the disk has changed in the past and the LVM is currently not aware of this.

man chvg
Code:
   -g
            Will examine all the disks in the volume group to see if they have grown in size. If any disks have grown in size attempt to add
            additional PPs to PV. If necessary will determine proper 1016 multiplier and conversion to big vg.

            Note: The user might be required to execute varyoffvg and then varyonvg on the volume group for LVM to see the size change on the
            disks.

Normaly this happens when we increase the size of LUN on the storage layer. Decreasing a LUN where the LVM is not aware of it should result in a IO failure...

Regards

Last edited by -=XrAy=-; 02-03-2016 at 07:24 AM..
This User Gave Thanks to -=XrAy=- For This Post:
 

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LVMDISKSCAN(8)						      System Manager's Manual						    LVMDISKSCAN(8)

NAME
lvmdiskscan - scan for all disks / multiple devices / partitions available SYNOPSIS
lvmdiskscan [-d|--debug] [-h|--help] [-l|--lvmpartitions] [-v|--verbose] DESCRIPTION
To give an overview about online peripherals usable to LVM, lvmdiskscan scans all SCSI, (E)IDE disks, multiple, loop and network block devices in the system and lists them on standard output with name, size and type (text/hex). The size is the real device size, not the size stored in the VGDA (See pvcreate(8) ) for details. OPTIONS -d/--debug Enables additional debugging output (if compiled with DEBUG). -h, --help Print a usage message on standard output and exit successfully. -l, --lvmpartition Gives an overview about all LVM system identified partitions only. -v, --verbose Gives verbose runtime information about lvmdiskscan's activities. DIAGNOSTICS
lvmdiskscan returns an exit code of 0, if disks / multiple devices / partitions where found and > 0 for error: 1 no special files found 2 no disks / multiple devices / disk partitions found 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 See also lvm(8), pvcreate(8), pvdisplay(8), pvscan(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS LVMDISKSCAN(8)
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