Sponsored Content
Operating Systems Linux Logical Volume to physical disk mapping Post 302883029 by cjcox on Friday 10th of January 2014 12:44:45 PM
Old 01-10-2014
pvs is good for showing space remaining in volumes across physical vols that are part of the logical vols.

When you create a volume group, it's from a pool of storage. In your case, the pool contains a single partition /dev/sde2 (at the time you posted anyhow). You'll practically never refer to /dev/sde2 again (there are cases, but generally only useful if you are creating volumes using whole drives rather than partitions).

Perhaps some good read here: NTLUG | Articles / LVM browse
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

physical volume and physical disk.

Hello, I need explanations about physical disks and physical volumes. What is the difference between these 2 things? In fact, i am trying to understand what the AIX lspv2command does. Thank you in advance. (2 Replies)
Discussion started by: VeroL
2 Replies

2. HP-UX

HP-UX logical volume length mapping

HI, I have to find the length of the logical vol. that is spanned on different PV. Now i have to find that is any bit map type structure of physical extents of any logical volumes and how i can find that. Suppose I extend one LV on two PV on same VG. How i can jump on the starting location... (3 Replies)
Discussion started by: gorayen
3 Replies

3. Solaris

Create a logical volume from a mirror and single disk?

I have two 72GB disks that are mirrored and mounted (/backup). I have a 18GB drive in an array I just attached to the server, which is running Solaris 9. I need to create a new logical volume partition and make the existing mirror device (/dev/md/dsk/d34) and the array's 18GB drive a member of... (3 Replies)
Discussion started by: dotcom75
3 Replies

4. AIX

Basic Filesystem / Physical Volume / Logical Volume Check

Hi! Can anyone help me on how I can do a basic check on the Unix filesystems / physical volumes and logical volumes? What items should I check, like where do I look at in smit? Or are there commands that I should execute? I need to do this as I was informed by IBM that there seems to be... (1 Reply)
Discussion started by: chipahoys
1 Replies

5. HP-UX

Unmount and remove all Logical vol.Volume group and physical disk

Hi, Someone please help me with how i can unmount and remove all the files systems from a cluster. This is being shared by two servers that are active_standby. (3 Replies)
Discussion started by: joeli
3 Replies

6. UNIX for Dummies Questions & Answers

Confusion Regarding Physical Volume,Volume Group,Logical Volume,Physical partition

Hi, I am new to unix. I am working on Red Hat Linux and side by side on AIX also. After reading the concepts of Storage, I am now really confused regarding the terminologies 1)Physical Volume 2)Volume Group 3)Logical Volume 4)Physical Partition Please help me to understand these concepts. (6 Replies)
Discussion started by: kashifsd17
6 Replies

7. AIX

Position of the logical volume on the physical volume

Hello everyone, I just read that while creating a logical volume(LV) we can choose the region of the physical volume (PV) in which the LV should be created. When I say region I mean: outer edge - outer middle - center - inner middle and inner edge. Can anyone help me understand the utility... (11 Replies)
Discussion started by: adilyos
11 Replies

8. Red Hat

No space in volume group. How to create a file system using existing logical volume

Hello Guys, I want to create a file system dedicated for an application installation. But there is no space in volume group to create a new logical volume. There is enough space in other logical volume which is being mounted on /var. I know we can use that logical volume and create a virtual... (2 Replies)
Discussion started by: vamshigvk475
2 Replies

9. Solaris

Exporting physical disk to ldom or ZFS volume

Generally, this is what we do:- On primary, export 2 LUNs (add-vdsdev). On primary, assign these disks to the ldom in question (add-vdisk). On ldom, created mirrored zpool from these two disks. On one server (which is older) we have:- On primary, create mirrored zpool from the two LUNs.... (4 Replies)
Discussion started by: psychocandy
4 Replies

10. AIX

Trouble removing Physical Disk from Volume Group

I want to remove hdisk1 from volume group diskpool_4 and migrate PV from hdisk1 to hdisk2 , but facing problems, so what is the quickest way to migratepv and remove hdisk1 -- # lspv | grep diskpool_4 hdisk1 00c7780e2e21ec86 diskpool_4 active hdisk2 ... (2 Replies)
Discussion started by: filosophizer
2 Replies
PVCREATE(8)						      System Manager's Manual						       PVCREATE(8)

NAME
pvcreate - initialize a disk or partition for use by LVM SYNOPSIS
pvcreate [-d|--debug] [-f[f]|--force [--force]] [-y|--yes] [-h|--help] [-v|--verbose] [-V|--version] PhysicalVolume [PhysicalVolume...] DESCRIPTION
pvcreate initializes PhysicalVolume for later use by the Logical Volume Manager (LVM). Each PhysicalVolume can be a disk partition, whole disk, meta device, or loopback file. For DOS disk partitions, the partition id must be set to 0x8e using fdisk(8), cfdisk(8), or a equiva- lent. For whole disk devices only the partition table must be erased, which will effectively destroy all data on that disk. This can be done by zeroing the first sector with: dd if=/dev/zero of=PhysicalVolume bs=512 count=1 Continue with vgcreate(8) to create a new volume group on PhysicalVolume, or vgextend(8) to add PhysicalVolume to an existing volume group. OPTIONS -d, --debug Enables additional debugging output (if compiled with DEBUG). -f, --force Force the creation without any confirmation. You can not recreate (reinitialize) a physical volume belonging to an existing volume group. In an emergency you can override this behaviour with -ff. In no case case can you initialize an active physical volume with this command. -s, --size Overrides the size of the physical volume which is normally retrieved. Useful in rare case where this value is wrong. More useful to fake large physical volumes of up to 2 Terabyes - 1 Kilobyte on smaller devices for testing purposes only where no real access to data in created logical volumes is needed. If you wish to create the supported maximum, use "pvcreate -s 2147483647k PhysicalVolume [PhysicalVolume ...]". All other LVM tools will use this size with the exception of lvmdiskscan(8) -y, --yes Answer yes to all questions. -h, --help Print a usage message on standard output and exit successfully. -v, --verbose Gives verbose runtime information about pvcreate's activities. -V, --version Print the version number on standard output and exit successfully. Example Initialize partition #4 on the third SCSI disk and the entire fifth SCSI disk for later use by LVM: pvcreate /dev/sdc4 /dev/sde DIAGNOSTICS
pvcreate returns an exit code of 0 for success or > 0 for error: 1 no physical volume on command line 2 error removing existing lvmtab entry for new physical volume 3 error setting up physical volume structure 4 error writing physical volume structure to disk 5 wrong partition type identifier 6 error physical volume name 7 error getting size of physical volume 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), vgcreate(8), vgextend(8), lvcreate(8), cfdisk(8), fdisk(8), losetup(8), mdadd(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS PVCREATE(8)
All times are GMT -4. The time now is 04:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy