9 Oct
1999
9 Oct
'99
2:56 p.m.
Greetings,
While trying to make my Sun 4/110 bootable again, I ran into a slight
problem with Seagate's web page: their documentation for older drives,
such as the jumper info., is somewhat undecipherable for someone using
UNIX... perhaps it's readable by MS-DOS/Windows systems, not sure.
Can anyone kindly tell me which jumpers on the ST4766N and ST41200N
drives are which? I think both are identical as far as jumpering for
SCSI ID, etc. goes. At one time, I had this info., but have misplaced
it, and need to change SCSI IDs and also get the drive to spin up by
itself with no delay.
BTW, can anyone tell me what format their web page us using to display
the info? Does Microsoft windows use some sort of unusual ASCII?
--
R. D. Davis
rdd(a)perqlogic.com Be careful what you wish for --- you
http://www.perqlogic.com/rdd may get your wish ...and it might not
Tel: (410) 744-4900 be what you were expecting.
9 Oct
9 Oct
3:14 p.m.
Can anyone kindly tell me which jumpers on the ST4766N
and ST41200N
drives are which? I think both are identical as far as jumpering for
Read this with a fixed-width font:
+-- Some 16-pin configurations may not have these pins.
|
| +-----------------------------+ /-4-3-2-1-\
-----P-W-A-----+--+:::SCSI:Cable:::::::::::::::1+-+ 0 0 0 0 +--
+-+ | +-----------------------------+ +-5-G-G-12+
|o|o o o o o o(o)o +--------1+--------1+--------1 Power
+o+o o o o o o(o)o +--------++--------++--------+
+-+ 4 2 1 M P | | Terminator Resistor SIPS
| --+-- | | | |
| | | | | +- Reserved
| | | | +--- Motor Start Delay ( 16 sec * ID)
| | | +----- Parity option enable
| | +------- Motor Start option enable
| +----------- Drive ID's, ID 0 (none) if only SCSI device
+----------------+ Terminator power from Drive (vertical)
+ Terminator power from Bus (lower horizontal)
3:17 p.m.
Re: my earlier post. That was for the ST4766N.
Subject: Seagate ST41200N and ST4766N
Fixed width font:
ST-41200N (94601-1200) Wren 7 SCSI and SCSI-2
+-- Some 16-pin configurations may not have these pins.
|
| +-----------------------------+ /-4-3-2-1-\
-----P-W-A-----+--+:::SCSI:Cable:::::::::::::::1+-+ 0 0 0 0 +--
+-+ | +-----------------------------+ +-5-G-G-12+
|o|o o o o o o(o)o +--------1+--------1+--------1 Power
+o+o o o o o o(o)o +--------++--------++--------+
+-+ 4 2 1 M P | | Terminator Resistor SIPS
| --+-- | | | |
| | | | | +- Reserved
| | | | +--- Motor Start Delay ( 16 sec * ID)
| | | +----- Parity option enable
| | +------- Motor Start option enable
| +----------- Drive ID's, ID 0 (none) if only SCSI device
+----------------+ Terminator power from Drive (vertical)
+ Terminator power from Bus (lower horizontal)
ST-41200N
94601-12G/M WREN 7 FH
UNFORMATTED CAPACITY (MB) ________________1.2G
FORMATTED CAPACITY (xx SECTORS) (MB) _____1037
AVERAGE SECTORS PER TRACK ________________71
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________28965
CYLINDERS ________________________________1931
HEADS ____________________________________15
DISCS ____________________________________8
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
TRANSFER RATE (mbytes/sec) _______________1.875-2.875
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________256 Kbyte
SCSI-1: Read Look-Ahead, Non_Adaptive,
Single-Segmented Buffer
SCSI-2: Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2
TPI (TRACKS PER INCH) ____________________1600
BPI (BITS PER INCH) ______________________32750
AVERAGE ACCESS (ms) ______________________15
SINGLE TRACK SEEK (ms) ___________________2.5
MAX FULL SEEK (ms) _______________________34
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __1.6
+5V START-UP (amps) __1.1
+5V TYPICAL (amps) ___0.8
TYPICAL (watts) ______24
MAXIMUM (watts) ______60
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
ZBR = Zone Bit Recording = Variable sectors per track
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
3:59 p.m.
Thanks to all who've responded with info. about these drives! The
strange thing is that www and dejanews searches used to turn up lots
of information like what I was seeking, but I couldn't find it last
night or today.
Now I can go back to trying to make the system bootable again, or at
least salvage some data from the drive with the boot partition on it,
which the system at least recognized and booted from before I messed
things up with running fsck manually, which I needed to to after
accidentally moving a "shoebox" with a running drive in it, which
wasn't fastened properly to the chasis due to an insufficient length
of cable. At the next hamfest, I'm buying lots of ribbon cable,
crimp-on connectors and things like that.
--
R. D. Davis
rdd(a)perqlogic.com Be careful what you wish for --- you
http://www.perqlogic.com/rdd may get your wish ...and it might not
Tel: (410) 744-4900 be what you were expecting.
9078
days inactive
9078
days old
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