02-14-2013
I assume you are talking about AIX LVM?
If this is the case, you should have a look in here:
IBM Info Center
The maximum number of Physical Partitions (PP) per Physical Volume (PV) is 1016. So if your 200 GB belong to one PV, you should have at least a PP size of 256 MB to use all space on it. You can do the maths yourself.
In short, the concept is:
PV --- VG (parted into PPs) --- LV (related to LP) --- FS
PPs are related with LPs. When you have a mirrored LV for example, you usually have 2 PPs that backup 1 LP. Best choice is to have both PPs on different PVs of course.
- A PV can be any kind of disk, local, SAN LUN, whatever.
- A PV can not belong to more than one VG.
- A VG can have more than one PV but at least 1.
- A VG can have more than one LV.
- A FS needs a LV beneath. A FS is related 1:1 with a LV
- There are types of LVs that do not need a FS on top, like Raw-LVs etc.
10 More Discussions You Might Find Interesting
1. HP-UX
Hello All,
I Am A New Member To This Group.
I Want To Know How Can We Create Single Volume Group Using 2 Hard Disks.
As We Require More Data To Be Stored We Need To Add A Hard Disk,but I Have A Doubt Whether We Can Increase The Size Of A Logical Volume Mounted On A Volume Group By Adding A... (5 Replies)
Discussion started by: bala_mes
5 Replies
2. UNIX for Advanced & Expert Users
Hello,
I have logical volume group of 50GB, in which I have 2 logical volumes, LogVol01 and LogVol02, both are of 10GB.
If I extend LogVol01 further by 10GB, then it keeps the extended copy after logical volume 2. I want to know where it keeps this information
Regards
Himanshu (3 Replies)
Discussion started by: ghimanshu
3 Replies
3. AIX
Does anyone have any simple methods for moving a current logical volume from one volume group to another? I do not wish to move the data from one physical volume to another. Basically, I want to "relink" the logical volume to exist in a different volume group. Any ideas? (2 Replies)
Discussion started by: krisw
2 Replies
4. HP-UX
Hi all,
How do u rename a logical volume group and the logical volumes belonging to that? The logical volumes contain data and are in use.
eg: Renaming dev/vgov to dev/ov-dg ? (6 Replies)
Discussion started by: Mr. Zer0
6 Replies
5. HP-UX
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. AIX
Hello,
I am a french computer technician, and i speak English just a little.
On Aix 5.3, I encounter a name conflict logical volume on two volume group.
The first volume lvnode01 is OK in rootvg and mounted. It is also consistent in the ODM
root # lsvg -l rootvg |grep lvnode01 ... (10 Replies)
Discussion started by: dantares
10 Replies
7. AIX
Good afternoon all,
I'll probably confuse everyone as I'm a Windows guy dealing with AIX 6.1 and can't quite figure out how to do something. I have a P520 server running 2 LPARs and we have an IVM (not HMC).Within the IVM under Virtual Storage Management, when I check the Physical Volumes, I have... (4 Replies)
Discussion started by: Spellbound
4 Replies
8. UNIX for Dummies Questions & Answers
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
9. Ubuntu
Hello,
I'm running Ubuntu 12.04. I need to rename my root logical volume group and it's bootmanager/fstab accordingly.
Here is the output: I need to change the HP-TEST001 to PRODGROUP01. Please advice me.
root@PROD-02:/home# vgdisplay
--- Volume group ---
VG Name HP-TEST001
System ID... (2 Replies)
Discussion started by: moneynut
2 Replies
10. Red Hat
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
LEARN ABOUT NETBSD
vgdisplay
VGDISPLAY(8) System Manager's Manual VGDISPLAY(8)
NAME
vgdisplay - display attributes of volume groups
SYNOPSIS
vgdisplay [-A|--activevolumegroups] [-c|--colon] [-d|--debug] [-h|--help] [--ignorelockingfailure] [-P|--partial] [-s|--short]
[-v[v]|--verbose [--verbose]] [--version] [VolumeGroupName...]
DESCRIPTION
vgdisplay allows you to see the attributes of VolumeGroupName (or all volume groups if none is given) with it's physical and logical vol-
umes and their sizes etc.
vgs (8) is an alternative that provides the same information in the style of ps (1).
OPTIONS
See lvm for common options.
-A, --activevolumegroups
Only select the active volume groups.
-c, --colon
Generate colon separated output for easier parsing in scripts or programs. N.B. vgs (8) provides considerably more control over the
output.
The values are:
1 volume group name
2 volume group access
3 volume group status
4 internal volume group number
5 maximum number of logical volumes
6 current number of logical volumes
7 open count of all logical volumes in this volume group
8 maximum logical volume size
9 maximum number of physical volumes
10 current number of physical volumes
11 actual number of physical volumes
12 size of volume group in kilobytes
13 physical extent size
14 total number of physical extents for this volume group
15 allocated number of physical extents for this volume group
16 free number of physical extents for this volume group
17 uuid of volume group
-s, --short
Give a short listing showing the existence of volume groups.
-v, --verbose
Display verbose information containing long listings of physical and logical volumes. If given twice, also display verbose runtime
information of vgdisplay's activities.
--version
Display version and exit successfully.
SEE ALSO
lvm(8), vgs(8), pvcreate(8), vgcreate(8), lvcreate(8)
Sistina Software UK LVM TOOLS 2.02.44-cvs (02-17-09) VGDISPLAY(8)