As well as support for addressing 3.5Gb RAM, Dynix/ptx 4.1 supports disk partitions of up to 1Tb, a Simple Network Management Protocol management host Management Information Base; it costs from $9,000 for a 25-user licence, and will be available next month. The operating system gets a new ptx/EFS Enhanced File System with improved intent logging, reducing file system recovery time; extent-based allocation providing higher performance for databases that use file systems for storage; support for on-line file system resizing so configuration changes can be made without taking the system down; and on-line file defragmentation, enabling file system tuning, again without downtime. The file system will cost $10,000 from May.
