01-08-2007
it doesn't matter if a pv has no free pps left, as long there is space in the volume group (lsvg <vgname>) and you extend a filesystem, the logical volume automatically uses the free pps on another free disk, expect you have limited the lvs max pvs or maxpps
sometimes it's not wise to just extend a fs, for example when you have a disk to filesystem-policy
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
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. AIX
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
3. UNIX for Dummies Questions & Answers
hi guys, i`m trying to take 40GB of my sda5 (/home mounted) to create new volume group(lvc)
here`s the df output:
/dev/sda2 7,9G 3,3G 4,3G 44% /
udevfs 5,0M 60K 5,0M 2% /dev
shmfs 379M 0 379M 0% /dev/shm
tmpfs 379M ... (2 Replies)
Discussion started by: neverhood
2 Replies
4. AIX
Hello All,
Can anybody please tell me what is the maximum limit of Physical IBM Power Machine which can be handled by single HMC at a single point of time?
Thanks,
Jenish (1 Reply)
Discussion started by: jenish_shah
1 Replies
5. AIX
This is the report I got running the comand rptconf, but I would like to know what is the capacity of the disks installed into our server power 6 with AIX
System Model: IBM,7778-23X
Machine Serial Number: 1066D5A
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6... (6 Replies)
Discussion started by: cucosss
6 Replies
6. UNIX for Dummies Questions & Answers
hi guys
I'm added a new disk to my server (virtual environment)
It used to be a Volume Group=Vol_Group01
and Logical Volume= Log_Vol_01_Data
and I see /dev/sdb
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 133.1 GB, 133143986176 bytes
255 heads, 63... (3 Replies)
Discussion started by: karlochacon
3 Replies
7. 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
8. Fedora
Hi,
I run Fedora 17.
I created a physical volume of 30GB on a disk with 60GB of space so there is 30GB of free space. On the physical volume, I created my volume group and logical volumes. I assigned all the space in the physical volume to my volume group. I need to add the 30GB of free space... (1 Reply)
Discussion started by: mojoman
1 Replies
9. AIX
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
10. Red Hat
I want to start by saying I already resolved my issue but I want to understand why I am seeing what I am seeing.
I have a server with a RAID controller two 500GB drives and six 600GB drives. The two 500GB drives are mirrored and have the OS installed on them. The six 600GB they wanted set as... (4 Replies)
Discussion started by: scotbuff
4 Replies
LEARN ABOUT OSF1
lvdisplay
LVDISPLAY(8) System Manager's Manual LVDISPLAY(8)
NAME
lvdisplay - display attributes of a logical volume
SYNOPSIS
lvdisplay [-a|--all] [-c|--colon] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--maps] [--nosuffix] [-P|--partial] [--units hHbB-
sSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]]
lvdisplay --columns | -C [--aligned] [-a|--all] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--noheadings] [--nosuffix]
[-o|--options [+]Field[,Field]] [-O|--sort [+|-]Key1[,[+|-]Key2[,...]]] [-P|--partial] [--segments] [--separator Separator] [--unbuffered]
[--units hHbBsSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]]
DESCRIPTION
lvdisplay allows you to see the attributes of a logical volume like size, read/write status, snapshot information etc.
lvs (8) is an alternative that provides the same information in the style of ps (1). lvs is recommended over lvdisplay.
OPTIONS
See lvm for common options and lvs for options given with --columns.
--all Include information in the output about internal Logical Volumes that are components of normally-accessible Logical Volumes, such as
mirrors, but which are not independently accessible (e.g. not mountable). For example, after creating a mirror using 'lvcreate -m1
--mirrorlog disk', this option will reveal three internal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog.
-c, --colon
Generate colon separated output for easier parsing in scripts or programs. N.B. lvs (8) provides considerably more control over the
output.
The values are:
* logical volume name
* volume group name
* logical volume access
* logical volume status
* internal logical volume number
* open count of logical volume
* logical volume size in sectors
* current logical extents associated to logical volume
* allocated logical extents of logical volume
* allocation policy of logical volume
* read ahead sectors of logical volume
* major device number of logical volume
* minor device number of logical volume
-m, --maps
Display the mapping of logical extents to physical volumes and physical extents. To map physical extents to logical extents use
pvs --segments -o+lv_name,seg_start_pe,segtype.
--columns | -C
Display output in columns, the equivalent of lvs. Options listed are the same as options given in lvs (8).
Examples
"lvdisplay -v /dev/vg00/lvol2" shows attributes of that logical volume. If snapshot logical volumes have been created for this original
logical volume, this command shows a list of all snapshot logical volumes and their status (active or inactive) as well.
"lvdisplay /dev/vg00/snapshot" shows the attributes of this snapshot logical volume and also which original logical volume it is associated
with.
SEE ALSO
lvm(8), lvcreate(8), lvscan(8), pvs(8)
Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVDISPLAY(8)