Error 28 from the storage engine is likely indicating that your disk is full. To resolve it, you need to free up some space. Here’s how you can resolve it:
1. Free up Disk Space: Check and review the files on your server. You can remove unnecessary files or move them to another storage device to create space. Like temporary files, logs, cache, backup, and old data.
1. Optimize your database: You can also optimize your database tables to free up space. To optimize a table in MariaDB, use the `OPTIMIZE TABLE` command:
```
OPTIMIZE TABLE table_name;
```
Replace table\_name with the name of your table.
1. Check filesystem quotas: If you’re using filesystem quotas, also make sure that they are not limiting your MariaDB server disk usage.
Remember to check the disk space after performing each of these actions. If you have enough space and still getting the error, it might be possible that the actual error might be different. Check server error logs for more detailed information.
In case, you are still unable to resolve the issue, consider reaching out to an expert or contacting the MariaDB support.
