LVM: what's better to use, lvextend (extends lvol) + fsadm (resizes fs) OR lvextend + extendfs_vxfs?
VxVM: Is it the same commands? lvextend + one of {fsadm_vxfs, extendfs_vxfs}?
extendfs_vxfs and fsadm_vxfs are not unix commands. They are the names of unix "man" pages which give the special syntax of the command in context.
See the following "man" pages for the "top of tree" for LVM and Veritas (VxVM) respectively.
If you don't have the "man" page then check whether you have the package at all.
It always helps to know what Operating System version you have. There has been a move away from LVM towards Veritas (VxVM) over the last 10 years or so.
We are unclear whether you are looking at an existing mature system or what.
Take a look at the contents of /etc/fstab .
Logical Volume adm Filesystems size parameters are in power of 2 notation. (1024 bytes = one kilobyte). There is however nothing to stop you creating say a 10 Gb filesystem. Hope I understood your question.
Beware that there are overheads in Journalling File Systems and the actual free space in a filesystem will be a fraction lower than you may expect.
I am unwilling to suggest LVM or VxVM commands in this context because we know nothing about your environment.
I want to resize my filesystem partitions. Reason is that I have 11GB of disk space unused by Unix which divvy reveals. Is there a way I could resize my filesystems without doing a reinstallation. The secondary problem is that the boot image is too large for a diskette (5MB).
I'm running SCO... (10 Replies)
I downloaded the Solaris recommended patched for x86 and tried to install it, but I got the message that I dont have enough disk space. I don't want to install the patches without the option to back out. Anyway I did a df -k and found that my root mount point is in 948MB whereas my /export/home is... (5 Replies)
Dear Friends,
I would like to know if there is any chance to expand a Volume Group, If this VG have a mirror.
If there is any chance to do this what would be the safer way to avoid lost any data.
Sorry about my English.:D
Thanks a lot. (1 Reply)
I want to run a script that changes the size of the window from which it's been started. Turns out that if I start up a putty windowo to a remove linux box, I can simply issue the command 'resize -s row col' and it will in fact do the resize. If I'm physically running on the local linux system's... (1 Reply)
Hi
First post :o
I have recently used Acronis (Backup software for data backup and disaster recovery in Windows and Linux - Acronis) to create identical systems that I need to build.
Everything works OK, but one of the machine has a bigger harddisk (250G) than the one I used to create the... (2 Replies)
Is there a way to take space from the /opt slice (/dev/dsk/c1t0d0s5) and then put it in the /var (/dev/dsk/c1t0d0s1)? In theory, I should be able to ufsdump /opt and /var to another drive. Use disk label to resize those two slices (ex. take 10G from opt and add to /var) and then newfs and dump back... (1 Reply)
I'm used to using AIX but a new box running Solaris I need a little help with.
The disk are presented from a SAN, the disk needing to change is presented as 148GBs drive which was allocated to a file system as the same. I need to change that without losing any data. I know I can change the disk... (7 Replies)
Hi guys ,
We are running machines in virtual environment.
As a part of virtual solution we have a disk created in form of files on host machine.
The problem is we are facing space crunch and need to re size the harddisk files of virtual machines.
There a catch the virtual machines are... (0 Replies)
Discussion started by: pinga123
0 Replies
LEARN ABOUT LINUX
lvextend
LVEXTEND(8) System Manager's Manual LVEXTEND(8)NAME
lvextend - extend the size of a logical volume
SYNOPSIS
lvextend [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--noudevsync] [-i|--stripes Stripes [-I|--stripesize
StripeSize]] {-l|--extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]}
[-f|--force] [-n|--nofsck] [-r|--resizefs] [-t|--test] [-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...]
DESCRIPTION
lvextend allows you to extend the size of a logical volume. Extension of snapshot logical volumes (see lvcreate(8) for information to cre-
ate snapshots) is supported as well. But to change the number of copies in a mirrored logical volume use lvconvert(8).
OPTIONS
See lvm for common options.
--noudevsync
Disable udev synchronisation. The process will not wait for notification from udev. It will continue irrespective of any possible
udev processing in the background. You should only use this if udev is not running or has rules that ignore the devices LVM2 cre-
ates.
-l, --extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]
Extend or set the logical volume size in units of logical extents. With the + sign the value is added to the actual size of the
logical volume and without it, the value is taken as an absolute one. The number can also be expressed as a percentage of the total
space in the Volume Group with the suffix %VG, relative to the existing size of the Logical Volume with the suffix %LV, of the
remaining free space for the specified PhysicalVolume(s) with the suffix %PVS, as a percentage of the remaining free space in the
Volume Group with the suffix %FREE, or (for a snapshot) as a percentage of the total space in the Origin Logical Volume with the
suffix %ORIGIN. The resulting value is rounded upward.
-L, --size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
Extend or set the logical volume size in units of megabytes. A size suffix of M for megabytes, G for gigabytes, T for terabytes, P
for petabytes or E for exabytes is optional. With the + sign the value is added to the actual size of the logical volume and with-
out it, the value is taken as an absolute one.
-i, --stripes Stripes
Gives the number of stripes for the extension. Not applicable to LVs using the original metadata LVM format, which must use a sin-
gle value throughout.
-I, --stripesize StripeSize
Gives the number of kilobytes for the granularity of the stripes. Not applicable to LVs using the original metadata LVM format,
which must use a single value throughout.
StripeSize must be 2^n (n = 2 to 9)
-f, --force
Proceed with size extension without prompting.
-n, --nofsck
Do not perform fsck before extending filesystem when filesystem requires it. You may need to use --force to proceed with this
option.
-r, --resizefs
Resize underlying filesystem together with the logical volume using fsadm(8).
Examples
"lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of that logical volume by 54MB on physical volume /dev/sdk3. This is
only possible if /dev/sdk3 is a member of volume group vg01 and there are enough free physical extents in it.
"lvextend /dev/vg01/lvol01 /dev/sdk3" tries to extend the size of that logical volume by the amount of free space on physical volume
/dev/sdk3. This is equivalent to specifying "-l +100%PVS" on the command line.
"lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9"
tries to extend a logical volume "vg01/lvol01" by 16MB using physical extents /dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents.
SEE ALSO fsadm(8), lvm(8), lvcreate(8), lvconvert(8), lvreduce(8), lvresize(8), lvchange(8)Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVEXTEND(8)