SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ United States +1 408 438-8771 ³ United Kingdom +44 628 478011 ³ ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´ ³ Germany +49 89 140-9331 ³ Singapore +65 227-2217 ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ (C)opyright 1991 ST-2274A (94244-274) Wren 6 HH AT (IDE) ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ /ÄÄÄÄÄÄÄ\ ÍÍ͵1::AT:(IDE):Cable:::ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵O O O OÆÍÍ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ o o o o o o o ÀÄÄÄÄÄÄÄÙ o o o o o o o 5 G G 12 G F E D C B A A B 0 0 Factory use only 0 1 Drive is Slave, motor start delay 20 sec from master start-up 1 0 Drive is Slave, no motor start delay 1 1 Drive is Master, motor starts at application of DC power C D 0 0 Physical mode 0 1 Translate (logical) mode, sparing scheme is one sector 1 0 Translate (logical) mode, no sparing space allocated 1 1 Factory use only E 0 Slave present, only meaningful on master 1 No Slave present F G x x Factory test, position G may or may not be present by PWA ST-2274A 94244-274 WREN 6 HH UNFORMATTED CAPACITY (MB) ________________274 FORMATTED CAPACITY (54 SECTORS) (MB) _____241 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________8735 CYLINDERS ________________________________1747 HEADS ____________________________________5 DISCS ____________________________________3 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.875 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________32 Kbyte Read Look-Ahead, Non-Adaptive, Single-Segmented Buffer INTERFACE ________________________________AT TPI (TRACKS PER INCH) ____________________1459 BPI (BITS PER INCH) ______________________31699 AVERAGE ACCESS (ms) ______________________16 SINGLE TRACK SEEK (ms) ___________________3 MAX FULL SEEK (ms) _______________________33 MTBF (power-on hours) ____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __0.95 +5V START-UP (amps) __1.0 +5V TYPICAL (amps) ___0.75 TYPICAL (watts) ______15 MAXIMUM (watts) ______59 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. Possible Translation: 873 cyls, 10 heads, 54 sectors = 241,367,040 Possible Translation: 536 cyls, 16 heads, 55 sectors = 241,500,160 Possible translation: 873 cyl, 15 heads, 36 sectors = 241,367,040 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 WARNING - 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. (6/26/90)