INCREASE THE LVM (LOGICAL VOLUME MANAGER) STORAGE AREA
Article ID: 137813
Updated On:
Products
Issue/Introduction
In order to execute the increase of the area storage for MOI LVMs is it necessary to stop the Docker processes?
Environment
OS : Linux x86_64
Release : 2.0
Component : MF OPERATIONAL INTELLIGENCE
Cause
Resolution
In order for the new storage to be used, the MOI microservices should be shut down and restarted.
Here are the instructions for accomplishing that requirement:
docker ps –a
Capture the LVM space allocations to compare to after the additional drives are added:
df -h
Normally you should shut down the microservices prior to adding the drive space using the commands below:
cd /opt/moi
docker ps -a
bin/plex shutdown --bg=wait
(This command will take a few minutes to complete)
Check to make sure all containers are not started and cleanup if it is necessary:
docker ps -a
(This command should return no docker containers list)
If any docker containers are still listed then run the following command to clean them up:
docker rm -f $( docker ps -a -q)
Now you would add the additional drives to increase the LVM storage allocations via the ISPF panels.
Restart appliance:
cd /opt/moi
bin/plex startup --bg=wait
Check containers for healthy status and no exits by repeating the command below every 5 minutes or so.
This process should complete within one hour.
docker ps -a
Additional Information
Further reading:
LVM entry in Wikipedia: Logical Volume Manager (Linux)
Docker commands: docker
TSO ISPF: What is ISPF?
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