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- SEAGATE TECHNOLOGY, INC.
- Customer Technical Support FAX Network +1 408 438-8137
- Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
- ┌──────────────────────────────────┬─────────────────────────────────┐
- │ United States +1 408 438-8771 │ United Kingdom +44 628 478011 │
- ├──────────────────────────────────┼─────────────────────────────────┤
- │ Germany +49 89 140-9331 │ Singapore +65 227-2217 │
- └──────────────────────────────────┴─────────────────────────────────┘
- (C)opyright 1991
-
-
-
- ST-280A (94204-81 or 94204-71) Wren 2 HH AT (IDE)
-
-
- ┌── Master on /Slave off
- │
- │ Factory ┌12─G─G─5─┐ Power
- AT Cable Connector │ 1 J2 │ 0 0 0 0 │
- 1::::::::∙:::::::::: :: ::::::::: \─1─2─3─4─/
- ══════════╤═════════════════════════════════════════
- pin-20 key │
- │ │ For "non-C" model, jumper, if present,
- │ │ must remain on. Drive will not operate
- └──┤ properly if jumper is removed (or added
- │ if not originally there).
- │
- │ For "C" model, jumper on indicates No
- │ Slave Present; jumper off means Slave
- │ Drive Is Present.
- └────────────────────────
-
- Note: There are two different revisions of the ST280A
- 1. If you have a 94204-xxC, then you can connect two different
- model drives on the same host adapter. (i.e. a 94204-xxC and
- a 94354-xxx drive)
-
- 2. If you do not have a "C" after the model number, then you
- can only connect two similar Wren 2 94204-xx model drives.
-
-
- ST-280A
- 94204-71 WREN 2 HH
-
- UNFORMATTED CAPACITY (MB) ________________80.6
- FORMATTED CAPACITY (27 SECTORS) (MB) _____71.3
- ACTUATOR TYPE ____________________________VOICE COIL
- TRACKS ___________________________________5160
- CYLINDERS ________________________________1032
- HEADS ____________________________________5
- DISCS ____________________________________3
- MEDIA TYPE _______________________________THIN FILM
- RECORDING METHOD _________________________RLL
- TRANSFER RATE (mbytes/sec) _______________0.937
- SPINDLE SPEED (RPM) ______________________3,600
- BUFFER ___________________________________32 Kbyte
- Read Look-Ahead, Non-Adaptive,
- Single-Segmented Buffer
- INTERFACE ________________________________AT
- TPI (TRACKS PER INCH) ____________________960
- BPI (BITS PER INCH) ______________________14357
- AVERAGE ACCESS (ms) ______________________29
- SINGLE TRACK SEEK (ms) ___________________5
- MTBF (power-on hours) ____________________40,000
- POWER REQUIREMENTS: +12V START-UP (amps) _4.5
- +12V TYPICAL (amps) __1.5
- +5V START-UP (amps) __0.6
- +5V TYPICAL (amps) ___0.4
- TYPICAL (watts) ______20
- MAXIMUM (watts) ______58
- 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 ________________________45, *
-
- * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO
- SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
- AVAILABLE.
-
- Possible Translation: 1024 cyl, 8 heads, 17 sectors = 71,303,168
- Possible Translation: 516 cyl, 10 heads, 27 sectors = 71,331,840
- Possible Translation: 745 cyl, 11 heads, 17 sectors = 71,329,280
-
- Note: A "custom" or "user-definded" CMOS drivetype may ask for a
- numerical value for the Write Precompensation cylinder and for the
- Landing Zone cylinder. A basic rule-of-thumb for drive models that do
- not require the old Write Precomp technique or a Landing Zone because
- they are Auto-Parking is to add 1 to the cylinder value being used. As
- an example: If cylinders equaled 820, then both Write Precomp and
- Landing Zone would be entered as 821. Some BIOS will convert this to
- 65535 or -1, which are functionally equivalent to "none (not used)".
-
- PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
-
- WARNING - Already low-level formatted at the factory.
-
- Since a User-definable or Custom translation geometry may be used, it
- is imperative that the values be written down and kept with your
- permanent records for retrieval in the event of CMOS battery failure.
-
- Seagate reserves the right to change, without notice, product
- offerings or specifications. (6/26/90)