=DFU, Storage_Mgmt, V3.1-1 High-Performance Disk/File Utility.ADFU V3.1-1 Disk and File Utilities is a high-performance utility Adeveloped to perform both routine maintenance and special-purpose>operations on disks, files and directories. The functionality>offered by DFU is not available or is only partially available?through other DCL commands; through standard OpenVMS utilities. Available functions : - DEFRAGMENT one or more files8 - DELETE files by file-id; delete directory(trees) fast5 - DIRECTORY functions : COMPRESS or DUMP directories; : search directories for files with : multiple versions , alias files . or empty directories1 : create directories with + preallocated size2 - REPORT disk for file, freespace and disk usage statistics & - SEARCH very fast for specific files$ - SET : change many file attributes - UNDELETE files+ - VERIFY and REBUILD of the disk structure8PCSI installation kits for OpenVMS Alpha and OpenVMS I647are provided. No DFU kit is available for OpenVMS VAX,$nor is a VAX kit currently expected.