Some Common Paths

These paths will be used for subsequent virtual machine migration and backup.

Storage configuration file:  

/etc/pve/storage.cfg

Storage path local:  

ISO storage path: /var/lib/vz/template/iso/

VM backup path: /var/lib/vz/dump/

ZFS disk path: /dev/rpool/data/

Storage path local-lvm, including mounted NFS, SMB, and other storage devices: mnt/pve/

PVE One-Click Optimization Script

It is recommended to use the PVE one-click optimization script for simple optimizations and auxiliary settings. It saves a lot of time. For the tutorial, refer to: https://github.com/ivanhao/pvetools

By default, PVE has SSH enabled, and you can connect directly.

First, remove the enterprise source:  

rm /etc/apt/sources.list.d/pve-enterprise.list

Install:  

export LC_ALL=en_US.UTF-8

apt update && apt -y install git && git clone https://github.com/ivanhao/pvetools.git

Start the tool (cd to the directory, then start the tool):  

cd ~/pvetools

./pvetools.sh

How to Uninstall?

Simply delete the downloaded `pvetools` directory.  

I will use it for basic settings, which is very convenient, such as configuring email notifications, etc.

System Installation and Scheduled Tasks

The installation steps are omitted; there are many online tutorials, and it’s not difficult.  

Personally, I use ZFS to set up a Mirror during the installation of PVE because I found that my SATA SSD sometimes causes errors when running PVE, possibly due to the aging of the SSD and data loss. Therefore, I use ZFS to avoid system-level errors in PVE, which could cause future troubles.  

Additionally, ZFS requires manual scrubbing to ensure the system’s correctness. So, I set up a daily scrub command to run at 00:30 AM.  

Edit system crontab

crontab -e

Choose the `vim` editor, paste the following content, and save. This means the system will scrub errors at 00:30 AM every day.  

30 0 * * * /usr/sbin/zpool scrub rpool

Once the crontab is set, it won’t take effect immediately. You can restart cron using the command:  

/etc/rc.d/cron restart

Using the online tool [https://crontab.guru/](https://crontab.guru/), you can generate the correct time expressions.

Check running scheduled tasks

crontab -l

Check the most recent scrub run status. If there’s no issue, it should show 0 errors:  

zpool status rpool

This method can also be used for other tasks:  

Scheduled VM Shutdown  

Shutdown VM 106 every 5 minutes:  

crontab -e

*/5 * * * * /usr/sbin/qm shutdown 106

Scheduled System Shutdown  

Shutdown the system at 1:30 AM every day:  

crontab -e

30 01 * * * /sbin/shutdown -h now

Additional Note: If shutdown fails, use the following command instead:  

#! /bin/sh

/sbin/init 0    # Shut down the power

/sbin/init 6    # Restart the system

Other Examples

30     3       10,20     *     *     ls             

# Execute the ‘ls’ command at 3:30 AM on the 10th and 20th of each month [Note: Use ‘,’ to separate multiple non-continuous time periods]

25     8-11    *         *     *     ls            

 # Execute the ‘ls’ command at the 25th minute of each hour between 8 and 11 AM every day [Note: Use ‘-‘ for continuous periods]

*/15   *       *         *     *     ls             

# Execute the ‘ls’ command every 15 minutes [i.e., at 0, 15, 30, 45, and 60 minutes of each hour]

30     6       */10      *     *     ls            

 # Execute the ‘ls’ command at 6:30 AM every 10 days of the month