MyWackoSite - lvm

24.02.2018 14:16

Sat, 24 Feb 2018 14:16:30 +0000

Comparison for lvm of 24.02.2018 14:16 and 24.02.2018 14:16

No differences.

24.02.2018 14:16

Sat, 24 Feb 2018 14:16:10 +0000

Comparison for lvm of 24.02.2018 14:13 and 24.02.2018 14:16

Additions:

# mount /opt/Breach
# df -h /opt/Breach
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_xps-lv_Breach 7.0G 7.0G 15M 100% /opt/Breach
meta-data=/dev/mapper/vg_xps-lv_Breach isize=512 agcount=6, agsize=327680 blks

= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1 spinodes=0 rmapbt=0
= reflink=0

data = bsize=4096 blocks=1826816, imaxpct=25

= sunit=0 swidth=0 blks

naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=2560, version=2

= sectsz=512 sunit=0 blks, lazy-count=1

realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 1826816 to 7069696
# df -h /opt/Breach
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_xps-lv_Breach 27G 7.0G 20G 26% /opt/Breach

24.02.2018 14:13

Sat, 24 Feb 2018 14:13:28 +0000

Comparison for lvm of 24.02.2018 13:58 and 24.02.2018 14:13

Additions:

reduce

# df -h /opt/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_xps-lv_optfs 69G 44G 23G 66% /opt
The goal is to reduce from 70G to 50G

umount

# umount /opt/

check filesystem

check a Linux ext2/ext3/ext4 file system
# e2fsck -ff /dev/mapper/vg_xps-lv_optfs
e2fsck 1.43.9 (8-Feb-2018)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
optfs: 117811/4587520 files (0.4% non-contiguous), 11609065/18350080 blocks

resize2fs filesystem

resize2fs – ext2/ext3/ext4 file system resizer
# resize2fs /dev/mapper/vg_xps-lv_optfs 50G
resize2fs 1.43.9 (8-Feb-2018)
Resizing the filesystem on /dev/mapper/vg_xps-lv_optfs to 13107200 (4k) blocks.
The filesystem on /dev/mapper/vg_xps-lv_optfs is now 13107200 (4k) blocks long.

LVM reduce

# lvreduce -L -20G /dev/mapper/vg_xps-lv_optfs

WARNING: Reducing active logical volume to 50.00 GiB.
THIS MAY DESTROY YOUR DATA (filesystem etc.)

Do you really want to reduce vg_xps/lv_optfs? [y/n]: y

Size of logical volume vg_xps/lv_optfs changed from 70.00 GiB (17920 extents) to 50.00 GiB (12800 extents).
Logical volume vg_xps/lv_optfs successfully resized.

verify

# mount /opt/
# df -h /opt/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_xps-lv_optfs 50G 44G 3.6G 93% /opt

24.02.2018 13:58

Sat, 24 Feb 2018 13:58:11 +0000

Comparison for lvm of 31.10.2013 09:24 and 24.02.2018 13:58

Additions:

# lvresize -l +100%FREE -n /dev/vg01/backup

resize xfs

LVM resize

%%
# lvresize -l +100%FREE -n /dev/vg_xps/lv_Breach

Size of logical volume vg_xps/lv_Breach changed from 5.00 GiB (1280 extents) to <6.97 GiB (1784 extents).
Logical volume vg_xps/lv_Breach successfully resized.

xfs grow

# xfs_growfs /opt/Breach

Deletions:

lvresize -l +100%FREE -n /dev/vg01/backup