[unix-history] / man / man4 / rp.4

.th RP IV 10/15/73
.sh NAME
rp \*- RP-11/RP03 moving-head disk
.sh DESCRIPTION
The files
.it "rp0 ... rp7"
refer to sections of RP disk drive 0.
The files
.it "rp8 ... rp15"
refer to drive 1 etc.
This is done since the size of
a full RP drive is 81200 blocks and
internally the system is only capable
of addressing 65536
blocks.
Also since the disk is so large,
this allows it to be broken up
into more manageable pieces.
.s3
The origin and size of the pseudo-disks on each drive are
as follows:
.s3
.br
	disk	start	length
.br
	0	0	40600
.br
	1	40600	40600
.br
	2	0	3200
.br
	3	3200	39000
.br
	4	42200	39000
.br
	5-7	unassigned
.sh FILES
/dev/rp?
.sh BUGS
Commit	Line	Data
dfeef67e KT	1	.th RP IV 10/15/73
	2	.sh NAME
	3	rp \*- RP-11/RP03 moving-head disk
	4	.sh DESCRIPTION
	5	The files
	6	.it "rp0 ... rp7"
	7	refer to sections of RP disk drive 0.
	8	The files
	9	.it "rp8 ... rp15"
	10	refer to drive 1 etc.
	11	This is done since the size of
	12	a full RP drive is 81200 blocks and
	13	internally the system is only capable
	14	of addressing 65536
	15	blocks.
	16	Also since the disk is so large,
	17	this allows it to be broken up
	18	into more manageable pieces.
	19	.s3
	20	The origin and size of the pseudo-disks on each drive are
	21	as follows:
	22	.s3
	23	.br
	24	disk start length
	25	.br
	26	0 0 40600
	27	.br
	28	1 40600 40600
	29	.br
	30	2 0 3200
	31	.br
	32	3 3200 39000
	33	.br
	34	4 42200 39000
	35	.br
	36	5-7 unassigned
	37	.sh FILES
	38	/dev/rp?
	39	.sh BUGS