Apple Xsan is a high-performance, enterprise-class Storage Area Network (SAN) file system at $999 per client and per server.Xsan combines performance with ease of use for customers who require scalable, high-speed access to centralized shared data for storage consolidation and workflow in video post production, data center, broadcast and high-performance computing environments.The 2.1.1 update is recommended for all systems running Xsan 2. This update includes general file system fixes, as well as specific fixes for:· file system performance and reliability· Access Control List verification and correction· volume reliability during metadata controller failover scenarios· upgrading from Xsan 1.4Requirements: