NetBSD-5.0.2/share/man/man4/man4.vax/up.4
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.\" from: @(#)up.4 8.1 (Berkeley) 6/5/93
.\"
.Dd June 5, 1993
.Dt UP 4 vax
.Os
.Sh NAME
.Nm up
.Nd UNIBUS storage module controller/disk drives
.Sh SYNOPSIS
.Cd "sc0 at uba? csr 0176700 vector upintr
.Cd "up0 at sc0 drive 0"
.Sh DESCRIPTION
NOTE: This driver has not been ported from
.Bx 4.4
yet.
.Pp
This is a generic
.Tn UNIBUS
storage module disk driver.
It is specifically designed to work with the
Emulex
.Tn SC-21
and
.Tn SC-31
controllers.
It can be easily
adapted to other controllers (although bootstrapping will
not necessarily be directly possible.)
.Pp
The script
.Xr MAKEDEV 8
should be used to create the
.Nm up
special files; consult
.Xr mknod 8
if a special file needs to be made manually.
It is recommended as a security precaution to not create special files
for devices which may never be installed.
.Sh DISK SUPPORT
The driver interrogates the controller's holding register
to determine the type of drive attached. The driver recognizes
seven different drives:
.Tn CDC
9762,
.Tn CDC
9766,
.Tn AMPEX DM Ns 980 ,
.Tn AMPEX
9300,
.Tn AMPEX
Capricorn,
.Tn FUJITSU
160, and
.Tn FUJITSU
Eagle
(the Eagle is not supported by the SC-21).
.Pp
Special file names begin with
.Sq Li up
and
.Sq Li rup
for the block and character files respectively. The second
component of the name, a drive unit number in the range of zero to
seven, is represented by a
.Sq Li \&?
in the disk layouts below. The last component of the name, the
file system partition, is
designated by a letter from
.Sq Li a
to
.Sq Li h
which also corresponds to a minor device number set: zero to seven,
eight to 15, 16 to 23 and so forth for drive zero, drive two and drive
three respectively (see
.Xr physio 4 ) .
The location and size (in 512 byte sectors) of the
partitions for the above drives:
.Pp
.Bl -hang
.It Tn CDC No 9762 partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyls
.It hp?a 0 15884 0-99
.It hp?b 16000 33440 100-309
.It hp?c 0 131680 0-822
.It hp?d 49600 15884 309-408
.It hp?e 65440 55936 409-758
.It hp?f 121440 10080 759-822
.It hp?g 49600 82080 309-822
.El
.It Tn CDC No 9766 300M drive partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyl
.It up?a 0 15884 0-26
.It up?b 16416 33440 27-81
.It up?c 0 500384 0-822
.It up?d 341696 15884 562-588
.It up?e 358112 55936 589-680
.It up?f 414048 861760 681-822
.It up?g 341696 158528 562-822
.It up?h 49856 291346 82-561
.El
.It Tn AMPEX DM Ns No 980 partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyls
.It hp?a 0 15884 0-99
.It hp?b 16000 33440 100-309
.It hp?c 0 131680 0-822
.It hp?d 49600 15884 309-408
.It hp?e 65440 55936 409-758
.It hp?f 121440 10080 759-822
.It hp?g 49600 82080 309-822
.El
.It Tn AMPEX No 9300 300M drive partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyl
.It up?a 0 15884 0-26
.It up?b 16416 33440 27-81
.It up?c 0 495520 0-814
.It up?d 341696 15884 562-588
.It up?e 358112 55936 589-680
.It up?f 414048 81312 681-814
.It up?g 341696 153664 562-814
.It up?h 49856 291346 82-561
.El
.It Tn AMPEX No Capricorn 330M drive partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyl
.It hp?a 0 15884 0-31
.It hp?b 16384 33440 32-97
.It hp?c 0 524288 0-1023
.It hp?d 342016 15884 668-699
.It hp?e 358400 55936 700-809
.It hp?f 414720 109408 810-1023
.It hp?g 342016 182112 668-1023
.It hp?h 50176 291346 98-667
.El
.It Tn FUJITSU No 160M drive partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyl
.It up?a 0 15884 0-49
.It up?b 16000 33440 50-154
.It up?c 0 263360 0-822
.It up?d 49600 15884 155-204
.It up?e 65600 55936 205-379
.It up?f 121600 141600 380-822
.It up?g 49600 213600 155-822
.El
.It Tn FUJITSU No Eagle partitions
.Bl -column diskx undefined length "xxx-yyyy" -compact
.It Sy disk start length cyls
.It hp?a 0 15884 0-16
.It hp?b 16320 66880 17-86
.It hp?c 0 808320 0-841
.It hp?d 375360 15884 391-407
.It hp?e 391680 55936 408-727
.It hp?f 698880 109248 728-841
.It hp?g 375360 432768 391-841
.It hp?h 83520 291346 87-390
.El
.El
.Pp
The up?a partition is normally used for the root file system,
the up?b partition as a paging area,
and the up?c partition for pack-pack copying (it maps the entire disk).
On 160M drives the up?g partition maps the rest of the pack.
On other drives both up?g and up?h are used to map the
remaining cylinders.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /dev/up[0-7][a-h]
block files
.It Pa /dev/rup[0-7][a-h]
raw files
.El
.Sh DIAGNOSTICS
.Bl -diag
.It "up%d%c: hard error %sing fsbn %d[-%d] cs2=%b er1=%b er2=%b."
An unrecoverable error occurred during transfer of the specified
filesystem block number(s),
which are logical block numbers on the indicated partition.
The contents of the cs2, er1 and er2 registers are printed
in octal and symbolically with bits decoded.
The error was either unrecoverable, or a large number of retry attempts
(including offset positioning and drive recalibration) could not
recover the error.
.Pp
.It "up%d: write locked."
The write protect switch was set on the drive
when a write was attempted. The write operation is not recoverable.
.Pp
.It "up%d: not ready."
The drive was spun down or off line when it was
accessed. The i/o operation is not recoverable.
.Pp
.It "up%d: not ready (flakey)."
The drive was not ready, but after
printing the message about being not ready (which takes a fraction
of a second) was ready. The operation is recovered if no further
errors occur.
.Pp
.It "up%d%c: soft ecc reading fsbn %d[-%d]."
A recoverable ECC error occurred on the
specified sector of the specified disk partition.
This happens normally
a few times a week. If it happens more frequently than
this the sectors where the errors are occurring should be checked to see
if certain cylinders on the pack, spots on the carriage of the drive
or heads are indicated.
.Pp
.It "sc%d: lost interrupt."
A timer watching the controller detecting
no interrupt for an extended period while an operation was outstanding.
This indicates a hardware or software failure. There is currently a
hardware/software problem with spinning down drives while they are
being accessed which causes this error to occur.
The error causes a
.Tn UNIBUS
reset, and retry of the pending operations.
If the controller continues to lose interrupts, this error will recur
a few seconds later.
.El
.Sh SEE ALSO
.Xr hk 4 ,
.Xr hp 4 ,
.Xr uda 4
.Sh HISTORY
The
.Nm up
driver appeared in
.Bx 4.0 .
.Sh BUGS
A program to analyze the logged error information (even in its
present reduced form) is needed.
.Pp
The partition tables for the file systems should be read off of each
pack, as they are never quite what any single installation would prefer,
and this would make packs more portable.