Ways to solve EX2 Ultra Storage Full Problem Again

If your WD My Cloud EX2 Ultra is repeatedly encountering a “Storage Full” problem, it’s a serious issue that can affect performance, data availability, and even lead to data loss if not addressed properly. This problem can stem from a variety of causes—including improper storage management, failed backups, hidden system files, or misconfigured apps that consume space uncontrollably.

Here’s a breakdown of what might be causing the issue and how to resolve and prevent it.

Common Causes of Storage Full on EX2 Ultra

Automatic Backups or Sync Loops

Backup tools (e.g., Time Machine, Smart Ware, or WD Sync) may be set to run continuously, duplicating data or filling up the device with repeated versions of the same files. Check your backup settings and verify that backups are not overlapping or being duplicated.

Recycle Bin Not Emptying

The EX2 Ultra has a network recycle bin feature that retains deleted files. These files don’t show up in your shared folders but still take up disk space. Go to the Dashboard > Shares > Recycle Bin and manually empty it.

Snapshots (If Enabled)

On some firmware versions, snapshots or version history features can be enabled, which store multiple versions of changed files. Over time, this eats up storage. Disable snapshotting if not needed.

Media Server or Plex Cache

If you're using Plex or Twonky DLNA, the media server cache may consume gigabytes of space, especially if indexing a large library. Regularly clear or limit the cache size from within the media server settings.

System Logs and Temporary Files

System logs and temporary files can build up over time, especially if something is misconfigured or if an app is misbehaving. Although less common, these can contribute to slow degradation of free space.

RAID Configuration Confusion

Users sometimes assume that a 2 x 4TB RAID 1 setup gives them 8TB, when it actually only provides 4TB of usable mirrored space. Always double-check your RAID configuration and capacity assumptions.

Troubleshooting Steps

Check Storage Breakdown

Log into the EX2 Ultra Dashboard and go to Storage > Volumes to see a breakdown of what’s consuming the space—Documents, Pictures, Videos, Backups, etc.

Clear the Recycle Bin

Go to Shares

Enable Recycle Bin

Navigate to Settings > Recycle Bin and choose to empty it.

Manage Backups and Syncs

Review your backup plans—especially Time Machine quotas. Limit Time Machine storage under Settings > Mac Backups.

Check Plex and Media Server Usage

If you're running Plex, go to the Plex dashboard > Settings > Transcoder or Library, and clear cache files. Consider moving metadata to an external share.

SSH Access (Advanced)

If you are comfortable using SSH, you can log into the EX2 Ultra and run commands to check disk usage:

Restart or Reset

After cleanup, restart the device to ensure all services reinitialize properly. As a last resort, consider a system reset, but ensure your data is backed up externally first.

Prevention Tips

Set storage quotas for users.

Schedule automatic cleanup for backups and logs.

Monitor disk usage regularly via the dashboard.

Avoid excessive sync apps unless properly configured.

Conclusion

A “Storage Full” problem on your EX2 Ultra is more than a minor annoyance—it can lead to major performance issues. Regular maintenance, monitoring, and cleanup routines are essential to keep your NAS healthy. If the issue keeps recurring despite efforts, consider expanding your storage capacity or upgrading to a more capable NAS system.