Disk space analysis

As it runs, the ManageEngine SecureAI database expands, the data Elasticsearch holds for it expands, and the directory it is installed in fills with logs and database backups. Disk space analysis reports how much space each of these occupies, how much room is left on the drive that holds them, and how those sizes have moved over recent days and months. Use it to confirm that SecureAI has the space it needs, to identify which part of the deployment is responsible when it does not, and to check what a shortened retention period or a change to the backup schedule recovered. Nothing is removed from here: the changes that free space are made in retention settings and in the database backup configuration.

How it works

SecureAI measures every figure on the server it is installed on, and it measures them when you view disk space analysis rather than reading a stored total. The database figure covers the database SecureAI stores its data in, and the Elasticsearch figure covers the data Elasticsearch holds for it.

The installation directory figure covers the whole of the directory the product is installed in, and the installation drive figure covers the space already in use on the drive that holds that directory. SecureAI reports free space and total capacity for the installation drive, and repeats the same pair of figures beside every component. The breakdown of the installation directory divides it between the backup folder, the log folder, and the remainder of the directory, and those three figures add up to the directory figure.

The trend reports come from stored readings instead. SecureAI plots one reading for each day and one for each month, covering the database, the installation directory, and the Elasticsearch data, and it cannot plot a day for which no reading exists. The figures move only when another setting changes what is on disk. The database backup configuration governs how often a backup is written and how many are kept, and retention settings governs how long SecureAI holds archived logs, archived audit reports, notification history, and access certification history.

Prerequisites

Complete the following before you use disk space analysis.

• Log in with a role that includes the Disk Space Analysis permission, because SecureAI does not list disk space analysis for a technician whose role omits it. Of the roles supplied with SecureAI, Super Admin and Governance Manager include it.
• Confirm which drive SecureAI is installed on, because SecureAI reports free space and total capacity for that drive alone.
• Note the current retention periods and the database backup configuration, because those settings are what explain the size of the database, the log folder, and the backup folder.
• Allow SecureAI to run for a period before you rely on the trend reports, because each report is plotted from readings already taken and a new installation has few of them.

Configuration instructions

1. Navigate to Settings > Security and Storage > Disk Space Analysis.
2. In Disk Storage, SecureAI reports the space each part of the deployment occupies.
   • Database: The size of the SecureAI database, with the name of the database it reads.
   • Elasticsearch: The size of the data Elasticsearch holds for SecureAI.
   • Installation Directory: The size of the directory SecureAI is installed in, with the full path to it.
   • Installation Drive: The space already in use on the drive that holds the installation directory, with the drive letter.
3. Click Details beside Installation Directory to see how SecureAI divides that figure. Each entry carries the path to the folder it reports.
   • Others: The part of the installation directory that is neither the backup folder nor the log folder.
   • Backup: The size of the folder holding database backups.
   • Logs: The size of the folder holding product logs.
4. Click the Daily Report or Monthly Report tab to follow how the database, the installation directory, and the Elasticsearch data have changed, day by day or month by month.
5. In the graph, adjust the unit and choose which components are plotted.
   • Select MB or GB to set the unit the trend is plotted in. The unit applies to both reports.
   • Click Database, Installation Directory, or Elasticsearch in the graph legend to leave that component out of the trend, and click the name again to return it. SecureAI replots the remaining components against a scale that suits them, which is the only way to read a small component against a large one.

Tips

• A database figure that climbs while the installation directory holds steady points to records SecureAI is keeping rather than files it is writing. Shorten the periods in retention settings before you enlarge the drive.
• The backup folder is the figure that responds to the backup frequency and the number of backups kept. Set both in the database backup configuration, so that the folder stays within the space you have allowed for it without anyone clearing files from it by hand.
• A jump in the log folder rarely reflects ordinary use. Compare the day the trend rose against the record of administrative activity for the same day.
• Where free space on the installation drive is falling and no SecureAI figure is rising, the space is going to something else on the server. The drive figure covers everything on that drive, not only SecureAI.
• Plan capacity from the trend rather than from the current figures. A month of growth in the database tells you when the drive runs out, which a single reading cannot.