7 2 4 5 S MAXTOR NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders 1944| | | Capacity form/unform 245/ MB Heads 4| | | Seek time / track 15.0/ 3.0 ms Sector/track | | | Controller SCSI2 SINGLE-ENDED Precompensation Cache/Buffer 64 KB LOOK-AHEAD Landing Zone Data transfer rate MB/S int Bytes/Sector 512 5.000 MB/S ext SYNC Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 55 | -40 60 Power: sleep W Humidity % 5 95 | standby W Altitude km -0.061 3.048| idle W Shock g 10 | 70 seek 3.9 W Rotation RPM 3551 read/write 3.6 W Acoustic dBA 32 spin-up W ECC Bit 96 MTBF h 300000 Warranty Month 12 Lift/Lock/Park YES Certificates CSA,FCC,TUV,UL478,VDE ********************************************************************** L A Y O U T ********************************************************************** MAXTOR 7245S PRODUCT MANUAL PART 1235 REVISION P2 +---------------------------------------------------------+ | +--J309 |XX | +-+-+-+-+++ |XX | +++++++++-+ ++ |XX J1 | +--+ | | +---+ || |XX | J305 J306 J307 J308 || |XX Inter- | +-+ || |XX face | J304/+-+ RP301|| |X* | J303/+-+ ++ |XX | J302/+-+ ++ |XX | J301/+-+ || |XX | || |XX | RP302|| |XX | || |XX | ++ |XX 1-2 | | | |XX Power | |XX J2 +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** MAXTOR 7245S PRODUCT MANUAL PART 1235 REVISION P2 Jumper setting ============== x = Jumper set at factory J301 Terminator Power Selection ------------------------------- Terminator power generation may occur internally from the disk drive (when J301 is jumpered), or externally from the SCSI bus. Factory default is J301 jumpered. J302 Drive Power-Up Option --------------------------- Pin 1-2 OPEN Wait for Start Command - The disk drive will not spin-up until the initiator issues a START/STOP UNIT command with the start bit equal to one. CLOSED Start When Power Applied - The spin motor starts when power is applied. J303 Parity Disable Option ---------------------------- The parity disable jumper, J303, enables (open, factory default) or disables (jumperred) odd parity detection in the disk drive. J304 Reserved -------------- RESERVED! J305 Reserved -------------- RESERVED! J306 Reserved -------------- RESERVED! J307/308/309 Addressing ------------------------ +---------------+------------+ | Jumper | Address | +---------------+------------+ | J309 | SEL 0 (LSB)| | J308 | SEL 1 | | J307 | SEL 2 (MSB)| +---------------+------------+ When jumpered, the corresponding bit is a 1. The SCSI bus supports connection of up to seven devices, but communication can occur only between two SCSI devices at a time. Each device has an assigned ID bit that establishes device priority on the SCSI bus. When two SCSI devices communicate, one acts as an initiator and the other as a target. The initiator orginates an operation and the target performs the operation specified by the initiator. An initiator can address up to seven other logical units (LUNs) attached to one target. The drive has only one logical unit attached. (LUN=0). Drive is shipped with an ID of 6 to provide spare jumpers. J307/308/309 SCSI ID --------------------- +--------+----------+-------+-------+-------+ |SCSI ID | Priority | J307 | J308 | J309 | +--------+----------+-------+-------+-------+ | 0 | Lowest |OPEN |OPEN |OPEN | | 1 | . |OPEN |OPEN |CLOSED | | 2 | . |OPEN |CLOSED |OPEN | | 3 | . |OPEN |CLOSED |CLOSED | | 4 | . |CLOSED |OPEN |OPEN | | 5 | . |CLOSED |OPEN |CLOSED | |x 6 | Highest |CLOSED |CLOSED |OPEN | +--------+----------+-------+-------+-------+ Each 7000 Series SCSI drive is shipped from the factory with an ID of 6. This ID designation assures sufficient jumpers are available for any address except 7 (which is usually reserved for the host system). J2 DC Power and pin connector assignments ------------------------------------------- +------------+ pin 1 +12 VDC | 1 2 3 4 | pin 2 +12 V Ground Return +------------+ pin 3 + 5 V Ground Return pin 4 + 5 VDC ********************************************************************** I N S T A L L ********************************************************************** MAXTOR 7245S PRODUCT MANUAL PART 1235 REVISION P2 Notes of Installation ===================== Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ The drive will operate in all axis (6 directions). Recommended Mounting Configuration ---------------------------------- Maxtor 7000 Series drive design allows greater shock tolerance than that afforded by larger, heavier drives. The drive may be mounted in any attitude. Use size 6-32 screws with 1/8" maximum penetration. Allow adequate ventilation to the drive to ensure reliable operation over the operating temperature range. Install a 50-pin ribbon cable connector. The striped edge of this cable represents pin 1 and must be oriented towards pin 1 at the drive connector and at the host connector. Subsystem Configuration ----------------------- The SCSI bus supports connection of up to seven devices, but communication can occur only between two SCSI devices at a time. Each device has an assigned ID bit that establishes device priority on the SCSI bus. When two SCSI devices communicate, one acts as an initiator and the other as a target. The initiator originates an operation specified by the initiator. An initiator can address up to seven other logical units (LUNs) attached to one target. The drive has only one logical unit attached (LUN=0). Interface Termination --------------------- SCSI devices require proper interface termination. On a SCSI bus daisy chain, terminate only the first and last device. All devices between the first and last devices must have their terminators removed. As shipped, the interface signal lines are terminated with two removable 220/330 ohm resistor network packs. A dot on the terminator (RP301-RP302) indicates the position of pin 1; pin 1 is also identified as the terminator pin farthest from power connector. For the drive to function correctly, orient each terminator pack with its identifying pin 1 dot facing the direction opposite the power connector. Any device driving the disk inputs should be of the open collector type, capable of sinking at least 48 mA at a voltage level less than 0.5 V DC (7438 or equivalent). Devices receiving 7000 Series disk drive outputs should be SCHMITT trigger type (74LS14, 74LS240, or equivalent) to improve noise immunity. The initiator should not load the bus with more than one standard low-power Schotky transistor-transistor logic (LSTTL) input load per line. The initiator should terminate all signals with 220/330 ohm terminators. The last physical device on the SCSI bus must be terminated. Any drive or other SCSI device connected between the host and the device at the end of the terminator must not be terminated. Buffering Scheme ---------------- The drive has a 64K circular First-In-First-Out (FIFO) buffer. The buffer controller allows simultaneous transfer either: 1.) to the drive from the initiator, or 2.) from the drive to the initiator. 64K Data Buffer and Look-Ahead Cache ------------------------------------ The target device anticipates sequential reads by reading to fill the buffer, making data immediately available to new READ commands. By temporarily placing small amounts of data in high-speed memory, cache with look-ahead read decreases access time to sequential data in the drive. Read-ahead performs all the required seeks and head switching needed to fill the buffer with sequential data. Power Connector --------------- Power is applied through a 4-pin AMP connector (recommended mating connector: AMP PN 1-480424-0, using AMP pins PN 350078-4). This power connector conforms to the industry-standard 4-pin power connector. Note: DO NOT connect data cable or power cable to drive with power on. Electrical Interface -------------------- SCSI uses single-ended drivers and receivers which allow a maximum cable length of 22 feet (6 meters) from the first to the last device (up to 7 devices) on the bus. The drive interfaces to the SCSI host via a 50-pin keyed ribbon cable; Maxtor recommends the 3M PN 3425-3000 cable connector. All assigned signals are terminated with 220 ohms to +5 volts and 330 ohms to ground at each end of the cable. SCSI requires removal of the two terminator networks on the drive when the drive is between terminated devices on a SCSI daisy chain. Terminators are fragile: remove them carefully and save for later use. All signals driven by the drive are open collector and have the output characteristics as follows. Signal True 0.0 V DC to 0.8 V DC Maximum Total Input Load -0.4 mA @ 0.4 V DC Signal False 2.5 to 5.25 V DC Minimum Input Hyteresis 0.2 V DC Air Filtration System --------------------- All 7000 Series drives are designed to operate in a typical office environment with minimal environmental control. Over the life of the drive, a 0.3 micron filter and breather filter (located within the HDA) maintain a clean environment to the heads and disks. Read/Write Electronics ---------------------- An integrated circuit mounted within the sealed enclosure (near the read/write heads) provides one of four head selection (depending on the model), read preamplification, and write drive circuitry. Read/Write Heads and Disks -------------------------- Two or four low-mass, low-force minicomposite metal-in-GAP (MIG) read/write heads record data on the 3.5" diameter disk(s). Maxtor uses a sputterred thin-film media on all disks for 7000 Series drives. Drive Meachanism ---------------- A brushless DC direct-drive motor rotates the spindle at 3,551 RPM ( 0.1%). The dynamically balanced motor/spindle assembly ensures minimal mechanical runout of the disk(s). A dynamic brake provides a fast stop to the spindle motor upon power removal. The speed tolerance includes motor performance and motor circuit tolerances. Voice Coil Actuator ------------------- 7000 Series drives employ a rotary voice coil actuator which consists of a moving coil, an E-block or actuator arm assembly, and stationary magnets. The actuator moves on a low-mass, low-friction center shaft. The low friction generated contributes to fast average access time and low power consumption. Automatic Headpark and Lock --------------------------- Immediately following power-down, dynamic braking of the spinning disks delays momentarily and lets the heads move to an inner mechanical stop. A small fixed magnet holds the heads in place as the disk spin down. The heads release only upon reapplication of power. Acoustic Noise -------------- Averages are recorded during Active (track follow) mode. Sound pressure 1 meter perpendicular to top cover 32.2 dBA Sound power (per ISO/DIS 7779) 3.9 belA Hard-Sectored Format -------------------- The disk drive is fixed at (and factory formatted with) 512-byte sectors. Sectors per track ----------------- (Zone Bit Recording) Zone | Sec./track -----+------------ 1 | 72 2 | 64 3 | 60 4 | 54 5 | 48 ********************************************************************** F E A T U R E S ********************************************************************** MAXTOR 7245S PRODUCT MANUAL PART 1235 REVISION P2 Introduction ------------ Maxtor 7000 Series SCSI disk drives are 1" high, 3.5" random access storage devices using an on-board SCSI (Small Computer System Inter- face) Controller. Maxtor engineers have applied recent advances in hard drive technology to the design and manufacture of these drives. Reduced size, increased durability, and low power consumption make them especially well suited to notebook, laptop, and desktop applications. Multi-Initiator Support ----------------------- The drive provides full multi-initiator support with command queuing for up to seven initiators. The target device can accept up to six commands (one from each remaining initiator) while processing a command from a seventh initiator. How Look-Ahead Cache Functions ------------------------------ In the absense of an error, corrected data, or an interrupt command, the drive caches not only requested sectors, but "look ahead" and caches data from the sector that follow. (Look-ahead cache reads across track boundaries.) The look-ahead feature prepares the drive to transfer cahed data when the host request it, and so prevents access time delays. Caching of sectors continues until: 1.) an error occurs, 2.) a host command inconsistent with sequential reads is received. Commands are interrupt driven: if the drive is performing a look- ahead cache when a command is received, it will stop the cache and process the command. Consequently, look-ahead cache operations do not ass overhead ro command processing. RESETs and WRITE or WRITE LONG commands to any of the cached sectors invalidate the whole cache. Defect Management ----------------- REASSIGN commands push data down within the cylinder to maintain sequential order and assure maximum performance. The 7245S has three spare sectors per cylinder; They are located at the end of each cylinder. Upon detection of an error in a sector, execution of a REASSIGN command flags that sector as bad; the next sequential sector is then used. Data Encoder/Decoder -------------------- The data encoder/decoder, a single semi-custom integrated circuit, employs an RLL encoding scheme and provides all clocking necessary for synchronization. This circuit interfaces to the data sequencer and either encodes or decodes serial data to or from the HDA. Power-Up Sequence ----------------- DC power (+5V and +12V) may be supplied in any order. Both power supplies must be present and within the tolerances of the power sensing circuit before the spin motor will operate. Once power is applied, the actuator lock automatically disengages. The drive then performs a recalibration sequence to track zero, spins up, and becomes ready in 10 seconds. The drive executes its recalibration sequence whenever power is applied or the SCSI START/STOP command is invoked via the SCSI bus. Regulatory Compliance --------------------- Maxtor 7000 Series drives comply with relevant product safety standards such as UL, CSA, VDE and TUV rules and regulations. As delivered, 7000 Series drives are designed for integration before use. They are Class B computing devices built in compliance with FCC rules and regulations, Part 15, Subpart J, governing the EMI of computing devices. Canadian Emissions Statement: This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian department of communicaions. Seek Time --------- +----------------------------------+--------+ | | 7245S | +----------------------------------+--------+ |Track-to-Track msec. typ. | 3 | +----------------------------------+--------+ |Average msec. typ. | 15 | | msec. max. | 27 | +----------------------------------+--------+ |Latency msec. avg. | 8.45 | +----------------------------------+--------+ ********************************************************************** G E N E R A L ********************************************************************** MAXTOR SCSI INSTALLATION GENERIC INSTALLATION PROCEDURE FOR A SCSI DRIVE ----------------------------------------------------------- 1. Install a 50 pin ribbon connector making sure pin 1, which can be identified by the striped edge of the cable, is closest to the power connector on the drive. 2. Install a DC power cable to the back of the drive. 3. Verify the SCSI ID selection. Note: SCSI ID usually needs to be set to 0 to be the boot drive. The last physical device on the SCSI bus must be terminated. Any other drive or SCSI device connected between the host and the device at the end of the bus must not be terminated. 4. Apply power to the computer. 4a. When memory test is complete go into your system's Standard C-MOS set-up. (Note: There are various ways to get into C-MOS set-up, please refer to system's manual for instuctions.) 4b. Set the drive type to "Not Installed". This intelligent drive will identify itself to the SCSI host adapter. 5. Boot from a DOS diskette that has FDISK.EXE and FORMAT.COM on it. At the A> prompt type in FDISK. At the menu options select option 1 to create a DOS partition. Another menu will appear and from those options choose 1 to create a Primary DOS partition. Select yes to make 1 large partition and it will automatically become active. Then escape from FDISK. 6. At the A> prompt type in FORMAT C:/S This does a high-level format on the drive and transfers the system files in order for the drive to be bootable. (Note: Maxtor SCSI drives are low-level formatted at the factory) 7. The drive is now bootable. As a test remove the DOS diskette from A and press reset to re-boot the computer, a C> should be displayed, the drive is now ready for operation.