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HOWTO: Create a MSCP MAP in RT-11

RT-11 is restricted to each devices is limited to 32MB of usable space. This is due to the filesystem using a 16-bit field to represent blocks, giving a maximum of 65535 x 512 byte blocks.
For larger MSCP disks, such as RD53, RD54, RA series and third party disks, all is not lost. Within RT-11 a… »

HOWTO: Create Logical Disks under RT-11

Logical disks are a convenient way of getting round the lack of a directory structure in RT-11. A logical disk is a file which can be mounted as a virtual storage device.
To make a logical disk:

Create an empty file to act as your logical disk:
CREATE [filename]/ALLOCATE:[number of blocks]
For example:
CREATE GAMES.DSK/ALLOCATE:500
Mount the file as a logic… »