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Top Forums UNIX for Dummies Questions & Answers Getting Storage Device Sizes and Paths Post 302345864 by Radar on Thursday 20th of August 2009 11:42:52 AM
Old 08-20-2009
If you want to calculate bytes from the given blocks, maybe:

fdisk
Code:
# fdisk -l /dev/sda

Disk /dev/sda: 449.9 GB, 449932427264 bytes
255 heads, 63 sectors/track, 54701 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14       54701   439281360   8e  Linux LVM

Get blocks & partitions
Code:
# egrep -v "#blocks|^$" /proc/partitions|awk '{print $3, $4}'
439387136 sda
104391 sda1
439281360 sda2

 

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

NAME
pvresize - resize a disk or partition in use by LVM2 SYNOPSIS
pvresize [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--setphysicalvolumesizesize] PhysicalVolume [PhysicalVolume...] DESCRIPTION
pvresize resizes PhysicalVolume which may already be in a volume group and have active logical volumes allocated on it. OPTIONS
See lvm(8) for common options. --setphysicalvolumesize size Overrides the automatically-detected size of the PV. Use with care, or prior to reducing the physical size of the device. EXAMPLES
Expand the PV on /dev/sda1 after enlarging the partition with fdisk: pvresize /dev/sda1 Shrink the PV on /dev/sda1 prior to shrinking the partition with fdisk (ensure that the PV size is appropriate for your intended new parti- tion size): pvresize --setphysicalvolumesize 40G /dev/sda1 RESTRICTIONS
pvresize will refuse to shrink PhysicalVolume if it has allocated extents after where its new end would be. In the future, it should relo- cate these elsewhere in the volume group if there is sufficient free space, like pvmove does. pvresize won't currently work correctly on LVM1 volumes or PVs with extra metadata areas. SEE ALSO
lvm(8), pvmove(8), lvresize(8), fdisk(8) Sistina Software UK LVM TOOLS 2.02.67(2) (2010-06-04) PVRESIZE(8)
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