home *** CD-ROM | disk | FTP | other *** search
- 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-9051A
-
- ┌─ 44-pin I/O Connector (* see below)
- │ o o
- ::::::::::::∙::::::::1 o o
- ═P═W═A═══════════╪══════════════════
- │ │ │
- pin-20 removed for keying ───────────────┘ │ │
- │ │
- │ │
- Drive is Master, no Slave drive present ────────────────── 0 0
- Drive is Master, Seagate Slave drive present ───────────── 1 0
- Drive is Slave to another ST9051A/ST9077A Master ───────── 0 1
- Reserved Position (Do Not Use) ─────────────────────────── 1 1
-
- * Drive uses +5vdc power supplied to the drive
- via the interface connector. The drive does
- NOT make use of a +12vdc power line.
- pin-41 +5vdc (Logic)
- pin-42 +5vdc (Motor)
- pin-43 Ground
- pin-44 Reserved
-
- ST-9051A
-
-
- UNFORMATTED CAPACITY (MB) ________________N/A
- FORMATTED CAPACITY (32 SECTORS) (MB) _____42.8
- ACTUATOR TYPE ____________________________STRAIGHT ARM
- TRACKS ___________________________________2,616
- CYLINDERS __PHYSICAL______________________654
- HEADS ______PHYSICAL______________________4
- DISCS (2.5 in) ___________________________2
- MEDIA TYPE _______________________________THIN FILM
- RECORDING METHOD _________________________RLL (2,7)
- TRANSFER RATE INTERNAL (mbytes/sec)_______1.25
- SPINDLE SPEED (RPM) ______________________3,631
- AVERAGE LATENCY (mSEC) ___________________8.26
- BUFFER ___________________________________32 KByte SeaCache
- INTERFACE ________________________________AT BUS
- SECTORS PER DRIVE ________________________83,712
- TPI (TRACKS PER INCH) ____________________1,750
- BPI (BITS PER INCH) ______________________34,007
- AVERAGE ACCESS (ms) ______________________<19
- SINGLE TRACK SEEK (ms) ___________________6
- MAX FULL SEEK (ms) _______________________36
- MTBF (power-on hours) ____________________150,000
- POWER REQUIREMENTS: +5V START-UP (amps) __1.0
- POWER MANAGEMENT (Watts):
- ACTIVE _______________1.7
- IDLE _________________0.8
- STANDBY ______________0.3
- SLEEP ________________0.3
- WRITE PRECOMP (cyl) ______________________N/A
- REDUCED WRITE CURRENT (cyl) ______________N/A
- LANDING ZONE (cyl) _______________________AUTO PARK
- IBM AT DRIVE TYPE ________________________*
-
- Physical:
- Height (inches/mm): 0.75/19.05
- Width (inches/mm): 2.76/70.10
- Depth (inches/mm): 4.01/101.85
- Weight (oz/kg): 6.5/0.18
-
- * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO
- SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
- AVAILABLE. (see below)
-
- Possible translation: 820 cyl, 6 heads, 17 sectors = 42,823,680
- Possible translation: 654 cyl, 4 heads, 32 sectors = 42,860,544
-
- 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
-
- 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. (9/25/91)