V4/man/man4/rf.4

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.th RF IV 10/15/73
.sh NAME
rf \*- RF11/RS11 fixed-head disk file
.sh DESCRIPTION
This file refers to the
concatenation of all RS-11 disks.
.s3
Each disk contains 1024 256-word blocks.
The length of the combined RF file is
1024\*X(minor+1) blocks.
That is minor device zero
is 1024 blocks long;
minor device one is 2048,
etc.
.sh FILES
/dev/rf0
.sh BUGS