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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)
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? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
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? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
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(C)opyright 1991
ST-7050P
ST-7050P
UNFORMATTED CAPACITY _____________________
FORMATTED CAPACITY (xx SECTORS) __________42.7
ACTUATOR TYPE ____________________________STRAIGHT ARM
TRACKS ___________________________________
CYLINDERS ________________________________(user)
HEADS ____________________________________2
DISCS (1.8 in) ___________________________1
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______up to 16
SPINDLE SPEED (RPM) ______________________3,545
AVERAGE LATENCY (mSEC) ___________________8.46
BUFFER ___________________________________32 Kbyte
Multisegmented adaptive cache
INTERFACE ________________________________PCMCIA/ATA
Auto Sense of interface type
PCMCIA Type III form factor
SECTORS PER DRIVE ________________________83,520
TPI (TRACKS PER INCH) ____________________2,748
BPI (BITS PER INCH) ______________________53,200
FCI (FLUX CHANGES PER INCH) ______________39,447
AVERAGE ACCESS (ms) ______________________18
SINGLE TRACK SEEK (ms) ___________________6
MAX FULL SEEK (ms) _______________________28
MTBF (power-on hours) Office _____________300,000
SHOCK (G's):
operating _______________________10
nonoperating ____________________300
POWER REQUIREMENTS: +5V START-UP (amps) __0.45
POWER MANAGEMENT (Watts):
ACTIVE _______________1.2
IDLE _________________0.42
STANDBY ______________0.1
SLEEP ________________0.06
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO
IBM AT DRIVE TYPE ________________________0
Physical:
Height (inches/mm): 0.413/10.5
Width (inches/mm): 2.13/54.0
Depth (inches/mm): 3.38/85.7
Weight (oz/g): 3/85
* 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: 580 cyl, 9 heads, 16 sectors = 42,762,240
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
ZBR = Zone Bit Recording = Variable sectors per track
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. (02/24/94)