Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Safe way to shrink lvm vg_*-lv_swap partition and reclaim freed space on Linux? Post 303039341 by gull04 on Tuesday 1st of October 2019 09:08:43 AM
Old 10-01-2019
Hi,

On Centos 6.10 and RHEL 6.10 in the lvreduce there is also the -r, --resizefs switch. This would allow things to be done in a single command line.

Please note if the system is swapping/paging the command will possibly take along time.

It should also be noted that reducing the swap can be done to an absolute value or by a specific amount, please read the man page and if possible test to ensure you get the expected result.

Regards

Gull04
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

mv files still in use - space not freed

Had a issue recently where DB admins did: mv listener.log listener.log.old gzip listener.log.old Where file listener.log is continually being written to by an oracle process. Anyway, according to the DB admins they successfully created the listener.log.old.gz file (i.e. all went okay).... (4 Replies)
Discussion started by: apra143
4 Replies

2. Red Hat

add lvm space from a regular partition

Hi, I have red hat enterprise 4. I would like to add more space on my lvm from the first partition that is not lvm type. Here's the config # fdisk -l Disk /dev/sda: 73.4 GB, 73406611456 bytes 255 heads, 63 sectors/track, 8924 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes... (6 Replies)
Discussion started by: itik
6 Replies

3. UNIX for Advanced & Expert Users

Shrink my partition to new disk

I want to backup my partitions by shrinking it my issue is like I want to create a new disk copy from only the used blocks I my current image. How would I redirect the output of resize2fs to new disk and dd the current partition so that I can boot my new image without issues and also without... (3 Replies)
Discussion started by: amol28kulkarni
3 Replies

4. Linux

How to reclaim the space which i used to increse the swap space on Xen,

Hi, i have done a blunder here, i increased the swap space on Xen5.6 server machine using below steps :- 1056 dd if=/dev/zero of=/root/myswapfile bs=1M count=1024 1057 ls -l /root/myswapfile 1058 chmod 600 /root/myswapfile 1059 mkswap /root/myswapfile 1060 swapon /root/myswapfile ... (1 Reply)
Discussion started by: apm
1 Replies

5. UNIX for Dummies Questions & Answers

How to convert non LVM root partition to LVM?

Hi Guys, I m using redhat 6, I have installed root partition as non-LVM . Is there any way i can convert it to LVM? (1 Reply)
Discussion started by: pinga123
1 Replies

6. Linux

About shrinking LVM and then adding the freed space to another OS on dualboot system

Hi all, Fedora 17, 64bit Ubuntu 12.04 desktop 64bit HD 160G I installed Ubuntu 12.04 on the HD first taking up the whole disc. Later I added/installed Fedora 17 selecting the "Shrink" option and save the bootloader on /dev/sda1 to make them dualboot. Installation is successful with... (0 Replies)
Discussion started by: satimis
0 Replies

7. UNIX for Advanced & Expert Users

How to shrink root file system (LVM) in Linux Fedora 9?

My root file system is of type LVM. i wanna shrink it but unable to do so. When i give the below command: resize2fs /dev/mapper/VolGroup00-VolLog00 10000M it messages that online shrink can't can't be done as the logical volume is mounted on /. i switched to single user mode by giving command:... (2 Replies)
Discussion started by: ravisingh
2 Replies

8. Red Hat

Linux partition with LVM

Hi, I need a suggesstion i have 2 disk if i installed OS / root partition by making Lvm in one disk and data in other disk also with the lvm, means 2 different lvms. Is making LVM partition for OS disk will the performacne will be good? Can i make 2 different lvm one is for OS and other for... (1 Reply)
Discussion started by: Rahulne25
1 Replies

9. Red Hat

Shrink LVM partition & create new Linux Primary partition

Hello All, I have a Red Hat Linux 5.9 Server installed with one hard disk & 2 Partitions created on it as follows, /boot - Linux Partition & another is LVM - One VG & under that 5-6 Logical volumes(var,opt,home etc). Here my requirement is to take out 1GB of space from LVM ( Any logical... (5 Replies)
Discussion started by: gr8_usk
5 Replies

10. UNIX for Beginners Questions & Answers

CentOS 6 ran out of space, need to reclaim it

Hello everyone, I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went. Seemingly I am using up 100%, according to df -h Filesystem Size Used Avail Use% Mounted on... (27 Replies)
Discussion started by: DannyBoyCentOS
27 Replies
PARTED(8)							 GNU Parted Manual							 PARTED(8)

NAME
GNU Parted - a partition manipulation program SYNOPSIS
parted [options] [device [command [options...]...]] DESCRIPTION
This manual page documents briefly the parted command. Complete documentation is distributed with the package in GNU Info format; see below. parted is a disk partitioning and partition resizing program. It allows you to create, destroy, resize, move and copy ext2, ext3, linux- swap, FAT and FAT32 partitions. This is useful for creating space for new operating systems, reorganising disk usage, and copying data to new hard disks. OPTIONS
-h, --help displays a help message. -i, --interactive where necessary, prompts for user intervention. -s, --script never prompts for user intervention. -v, --version displays the version. COMMANDS
[device] The block device to partition. [command [options]] Specifies a command to parted. If no command is given, parted will give you a command prompt. Commands are: check partition does a simple check on partition. cp [source-device] source dest copies the source partition's filesystem on source-device (or the current device if no other device was specified) to the dest partition on the current device. help [command] prints general help, or help on command if specified. mkfs partition fs-type make a filesystem fs-type on partition. fs-type can be one of "FAT", "ext2" or "linux-swap". mklabel label-type Creates a new disklabel (partition table) of label-type. label-type should be one of "bsd", "gpt", "loop", "mac", "mips", "msdos", "pc98" or "sun". mkpart part-type [fs-type] start end make a part-type partition with filesystem fs-type (if specified), beginning at start and ending at end (in megabytes). part-type should be one of "primary", "logical" or "extended" mkpartfs part-type fs-type start end make a part-type partition with filesystem fs-type beginning at start and ending at end (in megabytes) move partition start end move partition to start at start and end at end. Note: move never changes the minor number name partition name set the name of partition to name. This option works only on Mac and PC98 disklabels. The name can be placed in quotes, if necessary print displays the partition table quit exits parted resize partition start end resize the filesystem on partition to start at start and end at end megabytes rm partition deletes partition select device choose device as the current device to edit. device should usually be a Linux hard disk device, but it can be a partition, software raid device or a LVM logical volume if that is necessary set partition flag state change the state of the flag on partition to state. Flags supported are: "boot", "root", "swap", "hidden", "raid", "lvm" and "lba". state should be either "on" or "off" REPORTING BUGS
Report bugs to <bug-parted@gnu.org> SEE ALSO
fdisk(8), mkfs(8), The parted program is documented fully in the GNU partitioning software manual available via the Info system. AUTHOR
This manual page was written by Timshel Knoll <timshel@debian.org>, for the Debian GNU/Linux system (but may be used by others). parted 18 Mar, 2002 PARTED(8)
All times are GMT -4. The time now is 09:45 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy