I'm having some difficulties initializing an RL02 disk under RSTS/E 9.2. When I issue the command INITIALIZE _DL1: MYPACK/CLUSTER_SIZE=1 it says that it is an illegal cluster size. This is the cluster size mentioned in the table given by HELP ADVANCED DISKS. It also returns the same error when I don't use the /CLUSTER_SIZE option. What am I doing wrong? -- Christopher L McNabb Operating Systems Analyst Email: cmcnabb(a)4mcnabb.net Virginia Tech ICBM: 37.1356N 80.4272N GMRS: WPSR255 ARS: N2UX Grid Sq: EM97SD