SYS1466 Explanation VDISK requires more storage than the system has available. Action 1. Decrease the amount of storage requested in any or more of the DEVICE=VDISK statements in the CONFIG.SYS file. 2. Edit the CONFIG.SYS file to reduce the value specified in the BUFFERS=, TRACEBUF=, DISKCACHE=, or THREADS= statement. 3. Install another memory option in your system unit. Then restart the system.