AOH :: ST3051A.TXT

Seagate ST3051A IDE Hard Disk Specs and Docs


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                            (C)opyright 1991



ST-3051A

                                                   4-pin DC
                   3-pin DC                        Power
                   Power   ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍ͸/Ä4Ä3Ä2Ä1Ä\
                 ÍÑÍ5ÍGÍ12ѵ::::::::::ù::::::::1Ƴ 0 0 0 0 ÆÍ
                  ³ 0 0 0 ³ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍ;ÀÄ5ÄGÄGÄ12Ù
                  ÔÍ1Í2Í3;   (pin-20 missing
                               for keying purposes)

                User Configuration Block
              ³ (located behind 3-pin DC)
              ÀÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
                      ³                                  1= On, 0= Off
(back of drive)    2 o-o 1  ÄÄÄ Life Test (do not use)
                   4 o-o 3  ÄÄÄ Master on (Slave off)ÄÄÄ 1  1  0
                   6 o-o 5  ÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄ 0  1  0
                   8 o-o 7  ÄÄÄ Reserved
(front of drive)  10 o-o 9  ÄÄÄ Active LED               S  M  S
                                                         i  a  l
                                                         n  s  a
                                                         g  t  v
                                                         l  e  e
                                                         e  r

                            ST-3051A


       UNFORMATTED CAPACITY (MB) ________________N/A
       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __43.1
       ACTUATOR TYPE ____________________________STRAIGHT ARM
       TRACKS ___________________________________
       CYLINDERS __PHYSICAL/LOGICAL______________xx/820
       HEADS ______PHYSICAL/LOGICAL______________ /6
       DISCS (3.5 in)____________________________
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL (2,7)
       TRANSFER RATE INTERNAL (mbits/sec) _______up to 15
       SPINDLE SPEED (RPM) ______________________3,211
       AVERAGE LATENCY (mSEC) ___________________9.34
       BUFFER ___________________________________32 KByte SeaCache
       INTERFACE ________________________________AT BUS
       SECTORS PER DRIVE ________________________84,270
       TPI (TRACKS PER INCH) ____________________1,792
       BPI (BITS PER INCH) ______________________31,005
       AVERAGE ACCESS (ms) ______________________16
       SINGLE TRACK SEEK (ms) ___________________3
       MAX FULL SEEK (ms) _______________________28
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _0.9
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________5.3
                           IDLE _________________2.1
                           STANDBY ______________0.7
                           SLEEP ________________0.7
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________40, 44*

 * 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

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. (5/13/91)
^Z


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