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| Title: | Ask the Storage Architecture Group |
| Notice: | Check out our web page at http://www-starch.shr.dec.com |
| Moderator: | SSAG::TERZA N |
|
| Created: | Wed Oct 15 1986 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6756 |
| Total number of notes: | 25276 |
6748.0. "Seagate St14207n installed in SBB , SCSI id selection issue" by KAOT01::B_CORBIN (dtn 640-7420 ) Wed Jun 04 1997 09:01
A customer has a prioris server using an adaptec 2740 scsi controller.
He has installed a Seagate st14207n inside one of our storageworks
SBB containers. The mounting cabinet is a SWXSE-06( BA350-KF)
The cabinet also contains an RZ29b-va in slot 0
He is able to set the SCSI device ID using the switch pack on the SBB
But if he sets the switch pack so that the Ba350 shelf location
determines the SCSI device ID, it defaults to 0 no matter what slot is
used.
The SBB came with all the switches on , origonally this caused the Disk
to respond to the scsi host as device id's from 0 to 7. According to the
SBB installation quide(EK-MC350-IG) to use the BA350 shelf address
switch 4,5,6, is on all other switches are off. With this
setting the disk responded as disk 0 no matter what slot it was in.
With switches 1, 2 on and the rest off, the disk does respond as
ID 3 . It would appear that the device ID cables are correctly
attached , else the device ID's would be incorrect with the
Switch setting for switches 1,2,3.
The customer is using the front jumper locations on the disk J6 to
connect the Device ID cables. The disk also has a side jumper location
to set the SCSI id .
Is this normal behaviour for the customers configuration.
I've attached a spec sheet from seagate on the disk .
Specifications for ST-14207N
This text file can be obtained by ftp. ASCII linedraw characters
are used that display normally in textmode.
Windows based environments can use the Letter Gothic Line TrueType
font to display and print ASCII
linedraw characters.
SEAGATE TECHNOLOGY, INC.
(C)opyright 1996
ST-14207N SCSI-2 Fast, (Cayman CFP4207S)
+-----------+
| REAR VIEW |
+-----------+
50 pin I/O Cable Connection J2
|
+----------- ------------+ /---------\ TOP
(HDA)
--+::::::::::::::::::::::::1+-| 0 0 0 0 |--
J1+-------------------------+ +-5-G-G-12+ BOTTOM
+--TRes--1 +--TRes--1
+--------+ +--------+
o+o+Fuse o o ---- Parity
Disable
| o o ---- Delay Spin
Term Power -+ o o ---- Disable Spin
Open = Power from drive o o ---- Reserved
Closed = Power from interface o o ---- ID 4
o o ---- ID 2
o o ---- ID 1
J7 ID 0 = no ID
jumpers
ST-14207N
+--------------+
| Front View |
+--------------+
+------------- Disable Spin
| +----------- Reserved
| | +------- SCSI ID's (none for ID0)
(TOP) | | |
| | +-+-+ J3
| | 4 2 1
o o o o o o o o o o o o
- o o o o o--- o o o o o o --------PWA----------
| +--+--+ | |
(BOTTOM) J6 | | | +-- Spindle Synch
| | +---- LED Driver
| +----------- Reserved
+---------------- pin removed
ST-14207N Cayman
FORMATTED CAPACITY (MB) __________________4294.9
AVERAGE SECTORS PER TRACK ________________104 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________79,980
CYLINDERS ________________________________3999 user
HEADS ______PHYSICAL______________________20
DISCS (3.5 in) ___________________________10
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec)________47.7 to 87.2
EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
SPINDLE SPEED (RPM) ______________________7,200
AVERAGE LATENCY (mSEC) ___________________4.17
BUFFER ___________________________________512 KByte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 Fast
BYTES PER TRACK (avg) ____________________
SECTORS PER DRIVE ________________________8,388,608
TPI (TRACKS PER INCH) ____________________4070
BPI (BITS PER INCH) ______________________78K
AVERAGE ACCESS (ms) (read/write)__________9.0/9.5
SINGLE TRACK SEEK (ms) ___________________2
MAX FULL SEEK (ms) _______________________18
MTBF (power-on hours) ____________________1,000,000
SHOCK (G's):
operating (Read/Write) __________5
nonoperating ____________________50
ACOUSTICS (typ/max Bels) __________________<46/
POWER REQUIREMENTS: +12V START-UP (amps) _3.5
+12V TYPICAL (amps) __.78
+5V START-UP (amps) __.88
+5V TYPICAL (amps) ___.50
IDLE (watts) _________12.8
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Physical:
Height (inches/mm): 1.62/41.2
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.75/146.1
Weight (lbs/kg): 2.0/0.91
Already low-level formatted at the factory with 1 spare sector
per track.
ZBR = Zone Bit Recording = Variable sectors per track
+---------------= Technical Support Automated Services
=--------------+
| SeaBOARD: USA 408-434-1080; England 44-1628-478011;
|
| BBS France 33 1-48 25 35 95; Germany 49-89-140-9331;
|
| Australia 61-2-9756-2359; Singapore 65-292-6973;
|
| Thailand 662-531-8111
|
| SeaNET: [email protected]; www.seagate.com;
ftp.seagate.com |
| CompuServe: go seagate
|
| SeaFAX: USA 800-SEAGATE; England 44-1628-894084;
|
| Australia 61-2-9756-5170
|
+---------------------------------------------------------------------+
Seagate reserves the right to change, without notice, product
offerings or specifications. (02/03/97)
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 6748.1 | | SUBSYS::VIDIOT::PATENAUDE | Ask your boss for ARRAY's... | Wed Jun 04 1997 20:22 | 7 |
|
Sorry, but the drive spec is not the issue. It'ss the SBB wire
connections to the jumpers that is in question. Have them recheck their
work.
roger.
|
| 6748.2 | scsi id lines | KAOT01::B_CORBIN | dtn 640-7420 | Thu Jun 05 1997 15:39 | 4 |
| If switches 1, 2, 3 on the SBB manually select the scsi id correctly ,
Could you not assume that the 3 SCSI ID lines from the SBB to the
disk are inserted correctly..
Brian
|