Xsan: Finder may not immediately display directory contents when accessing StorNext 4.x volumes (Apple KB)

Apple Knowledge Base's picture

Directories on a StorNext 4.x volume may appear to have no contents when viewed in the Finder from an Xsan client that is using OS X Lion or Mountain Lion. The contents eventually appear, and they appear immediately when using the ls command in Terminal.

Read more: https://support.apple.com/en-us/HT200058