You could have downloaded Apple Xsan Update for 10.3.9 1.1 for Mac from our application library for free. The application lies within System Tools, more precisely General.
From the developer:
The 1.1 Update delivers overall improved reliability for Xsan and is recommended for all systems running 10.3.9. It includes fixes for: greater server stability when resharing Xsan volumes via NFS handling quotas with no associated user or group name maintaining access to Xsan volumes when metadata controller failovers occur operating Xsan in environments with a mix of 10.3.9 and 10.4 systems
System Optimization
Device Assistants
