Managing Disk Space on Thai Hosting 2026 — Check, Optimize, and Expand

Disk space on web hosting is a finite resource. When it fills up, the consequences can be immediate and severe: your site stops accepting new file uploads, email delivery fails, and in worst-case scenarios, database corruption can occur. Proactive disk space management prevents these issues before they happen.

How to Check Disk Usage

Check via DirectAdmin

1. Login to DirectAdmin → The home page shows a Disk Usage summary widget.
2. Go to System Info & Files → Disk Usage for per-folder breakdown.
3. Review your quota usage (e.g., 5.2GB of 10GB used).

Check via Command Line (SSH)

du -sh /home/username/* # Show size of each folder
du -sh * | sort -rh # Sort from largest to smallest
df -h   # Show total server disk usage

What Uses the Most Disk Space?

1. Email Mailboxes

Email is often the primary disk space consumer, especially with multiple email accounts that are never cleaned. Archive or delete old emails regularly through your webmail interface.

2. Log Files

Apache error logs and access logs can grow enormously without log rotation. Usually stored in /home/user/logs/. Configure log rotation to automatically delete logs older than 30 days.

3. Images and Media

WordPress media library accumulates unused images plus multiple size variants automatically generated by WordPress. Use the Media Cleaner plugin to find and remove orphaned media files.

4. Backup Files

Backups stored on the same server unnecessarily consume disk space. Move them to offsite storage (cloud or local computer) — they shouldn't live on your hosting server anyway.

5. Cache Files

WordPress cache, compiled templates, and session files accumulate over time. Schedule automated clearing via plugin or cron job.

How to Free Up Disk Space

• Clean email: Delete old emails, spam, and trash from all webmail accounts.
• Rotate logs: Set up log rotation or manually delete log files older than 30 days.
• Optimize images: Compress images with TinyPNG or Imagify before uploading.
• Delete unused plugins: Inactive plugins still take up space — delete what you don't use.
• Move backups offsite: Store backups in cloud storage instead of on the server.
• Compress old files: zip or gzip old files you need to keep but rarely access.

Optimizing Images Before Upload

Images typically account for 60-70% of disk usage on most WordPress sites. Optimization strategies:

• WebP format: 25-35% smaller than JPEG at equivalent quality. WordPress 5.8+ supports WebP natively.
• TinyPNG/TinyJPG: Free online compression, typically reducing size 50-80%.
• Imagify plugin: Automatically compresses every image upon upload.
• Resize before uploading: Don't upload 4000px wide photos for a 800px wide website.

Frequently Asked Questions