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-3051A 4-pin DC 3-pin DC Power Power #========== =========#/-4-3-2-1-\ ===G=12=5=#::::::::::o::::::::1#| 0 0 0 0 #= | 0 0 0 |\====================/\-5-G-G-12/ \=3=2=1=/ (pin-20 missing for keying purposes) User Configuration Block | (located behind 3-pin DC) \-------+------------------ | 1= On, 0= Off (back of drive) 2 o-o 1 --- Life Test (do not use) 4 o-o 3 --- Master on (Slave off)--- 1 1 0 6 o-o 5 --- Slave Present ---------- 0 1 0 8 o-o 7 --- Reserved (front of drive) 10 o-o 9 --- 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 ____________________________VOICE COIL 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)