ST-31276A, Medalist 1276 AT (Lapaz CFS1276A)
+-----------+
| REAR VIEW |
+-----------+
J2 40 pin I/O Cable Connection
|
+--------- ---------+-----1-/---------\\ TOP (HDA)
-+::::::::::oe::::::::1| : : : | 0 0 0 0 |--
+----------|---------+-|-|-|-+-5-G-G-12+ BOTTOM
| | | |
pin-20 removed -+ | | +-- Reserved
| +---- Slave Present (when Master ON)
| +---- Cable Select (when Slave OFF)
+------ Master ON, Slave OFF
ST-31276A
Medalist 1276 AT (Lapaz CFS1276A)
FORMATTED CAPACITY _______________________1280.95
ACTUATOR TYPE ____________________________VOICE COIL
CYLINDERS __PHYSICAL______________________4893
HEADS ______PHYSICAL______________________4
DISCS (3.5 in) ___________________________2
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (Mbits/sec) _______33.6 to 67.2
EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6
PIO MODE _________________________________4
DMA SUPPORT ______________________________EISA Type B
SPINDLE SPEED (RPM) ______________________4500
AVERAGE LATENCY (mSEC) ___________________6.67
BUFFER ___________________________________64K
Read/Write Multiple, Read Look-Ahead,
Multi-Segmented
INTERFACE ________________________________ATA
SECTORS PER DRIVE (LBA mode) _____________2,501,856
TPI (TRACKS PER INCH) ____________________4973
BPI (KBITS PER INCH) _____________________88.4
AVERAGE ACCESS (ms) ______________________12.5
SINGLE TRACK SEEK (ms) ___________________3
MAX FULL SEEK (ms) _______________________24
MTBF (power-on hours) Office _____________300,000
SHOCK (G's):
operating (Read/Write) __________5
abnormal ________________________
nonoperating ____________________75
ACOUSTICS (bels) (typ/max) _______________38/
POWER DISSIPATION (watts) ________________
POWER REQUIREMENTS: +12V START-UP (amps) _1.2
POWER MANAGEMENT (Watts):
ACTIVE _______________4.6
IDLE _________________3.5
STANDBY ______________1.0
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO
IBM AT DRIVE TYPE ________________________*
Physical:
Height (inches/mm): 1.00/25.4
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.75/146.1
Weight (lbs/kg): 1.3/0.59
* 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 translations:
This translation is generally acceptable, as
is, for non-DOS operating systems:
2482 cyl, 16 heads, 63 sectors = 1,280,950,272
DOS operating systems may require a translation
that uses larger values for the CMOS head
parameter which lowers cylinders below 1024:
620 cyl, 64 heads, 63 sectors = 1,279,918,080
Other FULL-CAPACITY solutions for DOS operating
systems include third-party drive preparation
software, system BIOS which supports LBA mode
or bios driven host adapters. Otherwise,
capacity may be limited to:
1024 cyl, 16 heads, 63 sectors = 528,482,304
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)".
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. (09/09/96)
Machines Affected: All