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ICL Comet 32

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⟦e0c57eb31⟧ TextFile

    Length: 642 (0x282)
    Types: TextFile
    Notes: UNIX file
    Names: »drum.4«

Derivation

└─⟦26887b7e0⟧ Bits:30009717 Comet 32 harddisk image
    └─⟦28c352965⟧ »/a« UNIX Filesystem
        └─⟦this⟧ »usr/man/man4/drum.4«

TextFile

.ig
	@(#)drum.4	2.1	7/1/84
	@(#)Copyright (C) 1983 by National Semiconductor Corp.
..
.TH DRUM 4
.UC 4
.SH NAME
drum \- paging device
.SH DESCRIPTION
This file refers to the paging device in use by the system.
This may actually be a subdevice of one of the disk drivers, but in
a system with paging interleaved across multiple disk drives
it provides an indirect driver for the multiple drives.
.SH FILES
/dev/drum
.SH BUGS
Reads from the drum are not allowed across the interleaving boundaries.
Since these only occur every
.BR . 5Mbytes
or so,
and since the system never allocates blocks across the boundary,
this is usually not a problem.