| 105 |
== reduce == |
| 106 |
|
| 107 |
%% |
| 108 |
# df -h /opt/ |
| 109 |
|
| 110 |
Filesystem Size Used Avail Use% Mounted on |
| 111 |
/dev/mapper/vg_xps-lv_optfs 69G 44G 23G 66% /opt |
| 112 |
|
| 113 |
%% |
| 114 |
|
| 115 |
|
| 116 |
The goal is to reduce from 70G to 50G |
| 117 |
|
| 118 |
|
| 119 |
==== umount ==== |
| 120 |
|
| 121 |
%% |
| 122 |
# umount /opt/ |
| 123 |
%% |
| 124 |
|
| 125 |
==== check filesystem ==== |
| 126 |
|
| 127 |
check a Linux ext2/ext3/ext4 file system |
| 128 |
|
| 129 |
%% |
| 130 |
# e2fsck -ff /dev/mapper/vg_xps-lv_optfs |
| 131 |
|
| 132 |
|
| 133 |
e2fsck 1.43.9 (8-Feb-2018) |
| 134 |
Pass 1: Checking inodes, blocks, and sizes |
| 135 |
Pass 2: Checking directory structure |
| 136 |
Pass 3: Checking directory connectivity |
| 137 |
Pass 4: Checking reference counts |
| 138 |
Pass 5: Checking group summary information |
| 139 |
optfs: 117811/4587520 files (0.4% non-contiguous), 11609065/18350080 blocks |
| 140 |
%% |
| 141 |
|
| 142 |
==== resize2fs filesystem ==== |
| 143 |
|
| 144 |
resize2fs - ext2/ext3/ext4 file system resizer |
| 145 |
|
| 146 |
%% |
| 147 |
# resize2fs /dev/mapper/vg_xps-lv_optfs 50G |
| 148 |
|
| 149 |
resize2fs 1.43.9 (8-Feb-2018) |
| 150 |
Resizing the filesystem on /dev/mapper/vg_xps-lv_optfs to 13107200 (4k) blocks. |
| 151 |
The filesystem on /dev/mapper/vg_xps-lv_optfs is now 13107200 (4k) blocks long. |
| 152 |
|
| 153 |
%% |
| 154 |
|
| 155 |
==== LVM reduce ==== |
| 156 |
|
| 157 |
|
| 158 |
%% |
| 159 |
# lvreduce -L -20G /dev/mapper/vg_xps-lv_optfs |
| 160 |
WARNING: Reducing active logical volume to 50.00 GiB. |
| 161 |
THIS MAY DESTROY YOUR DATA (filesystem etc.) |
| 162 |
|
| 163 |
Do you really want to reduce vg_xps/lv_optfs? [y/n]: y |
| 164 |
|
| 165 |
Size of logical volume vg_xps/lv_optfs changed from 70.00 GiB (17920 extents) to 50.00 GiB (12800 extents). |
| 166 |
Logical volume vg_xps/lv_optfs successfully resized. |
| 167 |
|
| 168 |
%% |
| 169 |
|
| 170 |
==== verify ==== |
| 171 |
|
| 172 |
%% |
| 173 |
|
| 174 |
# mount /opt/ |
| 175 |
|
| 176 |
# df -h /opt/ |
| 177 |
|
| 178 |
Filesystem Size Used Avail Use% Mounted on |
| 179 |
/dev/mapper/vg_xps-lv_optfs 50G 44G 3.6G 93% /opt |
| 180 |
|
| 181 |
%% |
| 182 |
|