When there is not nearly enough disk space on the digital server, the manager manually raises the vacuum. Exactly how to do this on a web server running Debian 9 is explained listed below.
Preliminary preparation
Go to the server control board and move the slider. The worth is selected independently depending on the requirements of the administrator:
We save the changes.
Important! All of the following operations are performed with superuser access rights.
Setup
Let’s run an OS scan to find free space.echo 1 > /sys/block/sda/device/rescan
The utility finds the added disk space and translates the Debian information.
1. Let’s use the built-in parted utility to add a new volume to the current one. Let’s start with the p key.Parted
(parted) p
This will open a window with the following information:
Screenshot #2. Information about disk space.
We remember the number indicated at number 1. In our case, this is 236 Gb.
2. Let the utility know which section needs to be changed. In screenshot #2, it is marked with the number 2.(parted) resizepart 2
We indicate after the question mark the new size, which is available after increasing the volume. In our case, this is 236Gb. Press Enter. Exit the utility with the quit command.
3. Update the current OS configuration. First, let’s open the built-in fdisk manager, specifying the current disk partition (sda). Let’s run the utility with the n key.fdisk /dev/sda
Command (m for help): n
The screen will ask you to assign a disk type.
In our example, this will be a logical drive. Press the l key.
Next, you need to set the values of the start and end sectors. We leave it as it is, i.e. press “Enter” twice.
The utility will create a new partition. We remember its number – in our case it is 7.
4. Using the key t , change the partition type.
We indicate the number of the section that we will change (for our situation – 7). Next, we introduce a new type – 8e. If you need to know the list of available types, then use the L key.
5. Enter the operand w. The utility will report the impossibility of rebooting – we will do it manually.
6. Let’s notify the Debian OS about the changes in the sda partition.partx -v -a /dev/sda
7. Activate the new partition using the internal command.pvcreate /dev/sda7
8. Now you need to add a new physical partition to the current volume group.vgextend debian94-vg /dev/sda7
9. The penultimate stage – we increase the disk space of the logical volume.lvextend -l +100%FREE /dev/debian94-vg/root
And the final step is to expand the file system of the hard drive.resize2fs /dev/debian94-vg/root
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