SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커 � United States +1 408 438-8771 � United Kingdom +44 628 478011 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑 � Germany +49 89 140-9331 � Singapore +65 227-2217 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 (C)opyright 1991 ST-1144A and ST-1144A-32 袴�PWA袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴� �....................� /컴컴컴컴�\ ...................1 � O O O O � 1 o o 2 컴컴컴컴� � Cable Connector 읕5횳횳�12� 3 o o 4 컴컴컴� � 5 o o 6 컴컴� � � 7 o o 8 컴� � � � 9 o o 10 � � � � � 1=closed 0=open � � � � 읕� Life-Test (Factory use) � � � 읕컴� Master on (Slave off) 컴컴 1 1 0 � � 읕컴컴� Slave Present 컴컴컴컴컴컴 0 1 0 � 읕컴컴컴� Reserved 읕컴컴컴컴� Remote LED S M S i a l n s a g t v l e e e r ST-1144A UNFORMATTED CAPACITY (MB) ________________N/A FORMATTED CAPACITY (xx/17 SECTORS) (MB) __130.7 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________14,336 CYLINDERS __PHYSICAL/LOGICAL______________NA/1,001 HEADS ______PHYSICAL/LOGICAL______________7/15 DISCS ____________________________________4 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (2,7) TRANSFER RATE INTERNAL (mbits/sec) _______8.2/10/12 SPINDLE SPEED (RPM) ______________________3,528 AVERAGE LATENCY (mSEC) ___________________8.5 BUFFER ___________________________________8 or 32 Kbyte Read Look-Ahead, Non-Adaptive, Single-Segmented Buffer INTERFACE ________________________________AT BUS SECTORS PER DRIVE ________________________255,255 TPI (TRACKS PER INCH) ____________________1,300 BPI (BITS PER INCH) ______________________21,600 AVERAGE ACCESS (ms) ______________________19 SINGLE TRACK SEEK (ms) ___________________8 MAX FULL SEEK (ms) _______________________40 MTBF (power-on hours) ____________________150,000 POWER REQUIREMENTS: +12V START-UP (amps) _2.0 +12V TYPICAL (amps) __0.7 +5V START-UP (amps) __0.63 +5V TYPICAL (amps) ___0.4 TYPICAL (watts) ______8 MAXIMUM (watts) ______ BUFFERED STEP PULSE RATE (micro sec) _____ WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________* * 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: 1001 cyl, 15 heads, 17 sectors = 130,690,560 Possible translation: 1024 cyl, 14 heads, 17 sectors = 124,780,544 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 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.