SEAGATE TECHNOLOGY, INC. 1-800-SEAGATE http://www.seagate.com (C)opyright 1999 ST-38421A (U4 8421, Ultra ATA/66) ÉÍÍÍÍÍÍÍÍÍÍÍ» º REAR VIEW º ÈÍÍÍÍÍÍÍÍÍÍͼ J2 40 pin I/O Cable Connection ³ pin-20 removed ³ ³ ÚÄÄ [spare jumper on pins 5-7] ³ ³ ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍÑÍͳÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\ TOP (HDA) ͵::::::::::ú::::::::1³ :Á: : : ³ 0 0 0 0 ³ÍÍ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏ8³Í³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù BOTTOM ³ ³ ³ ³ ³ ³ ÀÄÁÄÄ Reserved O=OFF, X=ON -->> X-OÄÄÄÄÄÄ Master ON O-OÄÄÄÄÄÄ Slave OFF X-XÄÄÄÄÄÄ Slave Present (when pins 7-8 ON used on Master drive) O-XÄÄÄÄÄÄ Cable Select (when pins 7-8 OFF) ST-38421A FORMATTED CAPACITY (MB) __________________8447 ACTUATOR TYPE ____________________________VOICE COIL CYLINDERS __PHYSICAL______________________ HEADS ______PHYSICAL______________________4 DISCS (3.5 in) ___________________________2 MEDIA TYPE _______________________________THIN FILM HEAD TYPE ________________________________MR RECORDING METHOD _________________________EPRML 16/17 ZBR INTERNAL TRANSFER RATE (Mbits/sec) _______up to 206 EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 66.6 PIO/DMA/UDMA MODE (max) __________________4/2/4 DMA SUPPORT ______________________________EISA Type B SPINDLE SPEED (RPM) ______________________5400 AVERAGE LATENCY (mSEC) ___________________5.6 BUFFER ___________________________________256K Read/Write Multiple, Read Look-Ahead, Multi-Segmented INTERFACE ________________________________Ultra ATA/66 SECTORS PER DRIVE (LBA mode) _____________16,498,944 TPI (TRACKS PER INCH) ____________________13.1k BPI (KBITS PER INCH) _____________________up to 241 AVERAGE ACCESS (ms seek/read/write) ______/10.5/11.5 SINGLE TRACK SEEK (ms seek/read/write) ___/2.0/2.75 MAX FULL SEEK (ms seek/read/write) _______/24.0/26.0 MTBF (power-on hours) Office _____________400,000 SHOCK (G's, 11ms/2ms): operating _______________________/63 abnormal ________________________ nonoperating ____________________75/300 ACOUSTICS (bels) (typ/max) _______________3.3/4.3 POWER DISSIPATION (watts) ________________ POWER REQUIREMENTS: +12V START-UP (amps) _1.5 POWER MANAGEMENT (Watts): ACTIVE _______________7.0 IDLE _________________3.1 STANDBY ______________0.8 WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO IBM AT DRIVE TYPE ________________________* Physical: Height (inches/mm): 1.03/26.1 Width (inches/mm): 4.02/101.8 Depth (inches/mm): 5.78/147.0 Weight (lb/g): 1.2/580 * 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: 16,368 cyl, 16 heads, 63 sectors = 8,447,459,328 DOS operating systems may require a translation that uses larger values for the CMOS head parameter which lowers cylinders below 1024: 1023 cyl, 256 heads, 63 sectors = 8,447,459,328 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 Some systems BIOS have capacity limitations. Types that have been identified are: a 2.113GB or 4095 cylinder limitation a 3.262GB or 6322 cylinder limitation a 4.22GB or 8192 cylinder limitation DOS 16-bit FAT file system cannot access more than 2.147 Gbytes per partition. FAT32 file system can create single partitions and logical drives up to 2TB. 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. (01/17/2000)