D H A A - 2 2 7 0 T R A V E L S T A R IBM NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 2.5"/SUPERSLIMLINE Cylinders | 524| | Capacity form/unform 270/ MB Heads | 16| | Seek time / track 14.0/ 4.0 ms Sector/track | 63| | Controller IDE / ATA2 FAST/ENHA Precompensation Cache/Buffer 32 KB WRITE CACHE Landing Zone Data transfer rate 4.500 MB/S int Bytes/Sector 512 8.300 MB/S ext Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5 V Temperature *C 5 55 | -40 65 Power: sleep W Humidity % 8 90 | 5 95 standby W Altitude km -0.300 3.000| -0.300 12.000 idle 1.2 W Shock g 10 | 120 seek W Rotation RPM 3800 read/write W Acoustic dBA spin-up W ECC Bit 128BIT REED SOLOMON,ON THE... MTBF h 300000 Warranty Month Lift/Lock/Park YES Certificates CSA,IEC950,TUV,UL1950 ********************************************************************** L A Y O U T ********************************************************************** IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994 +--------------------------------------+ | | | | | | +--------Interface-------------49------+ | 43**********************1 **47 Jumper | 44*************x********* **48 | +------------------------------50------+ + + Pin position 20 is left blank for secure connector insertion. Pin position 47 through 50 are used for drive address setting. ********************************************************************** J U M P E R S ********************************************************************** IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994 Jumper Setting ============== Drive Address Setting --------------------- A jumper is available at the interface connector to determine the drive address. Using Cable Selection, the drive address depends on the condition of pin 28 of the AT interface cable. In the case when pin 28 is ground or low, the drive is a Master. If pin 28 is open or high level, the drive is a Slave. ---49--47+ * * X | Master * * X | (Default setting) ---50--48+ ---49--47+ * * * | Slave * * * | ---50--48+ ---49--47+ * * * | Cable Selection * xxx | ---50--48+ ********************************************************************** I N S T A L L ********************************************************************** IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994 Notes on Installation ===================== Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ The drive will operate in all axis (6 directions). Mounting Orientation -------------------- The drive operates in all axes (6 directions). The drive operates within the specified error rates when tilted 5 degrees from these positions. Performance and error rate stay within specification limits even if the drive is operated in other orientations from which it was formatted. Thus a drive formatted in the horizontal orientation operates in the vertical position without any degradation, and vice versa. The recommended mounting screw torque is 3 0.5 [Kgf.cm]. The recommended mounting screw depth is 3.5 0.5 [mm] for bottom and 5.0 0.5 [mm] for horizontal mounting. The system is responsible for mounting the drive securely enough to prevent excessive motion or vibration of the drive at seek operation or spindle rotation, using appropriate screws or equivalent mounting hardware. The vibration test and the shock test ar eto be conducted with the drive mounted to the table using four bottom screws. Landing Zone and Lock --------------------- A landing zone on the disk, not on the data area of the disk, is provided to protect the disk data during shipping, movement, or storage. Upon power down, a head locking mechanism will secure the heads in this zone. Cabling ------- The maximum cable length from the host system to the drive plus circuit pattern length in the host system shall not exceed 18 inches. Interface Connector ------------------- The AT signal connector is designed to mate with Dupont part number 69764-044 or equivalent. Size and locations of the mounting hols comply with MCC. 5V Power (Pins 41/42 of the Interface Connector) ------------------------------------------------ There are two input pins for +5V power supply, +5V LOGIC, pin 41 and +5V MOTOR, pin 42. +5V LOGIC is connected to the internal logic circuits and +5V MOTOR is connected to the spindle motor and motor driver. It is possible to turn on and off +5V LOGIC by an external switch circuit to reduce power consumption to the least possible. In this mode, a voltage drop out due to the motor spin up current can be reduced by connecting +5V MOTOR line into the system power source directly. If the above power management is used, all signal lines that will be electrically active in the host system while the drive is disconnected from power line shall be isolated by Three-State line drivers. Internal leakage through ESD protection circuit may pull down LPUL (least Positive Up Level) of logic signal below the spec. Use both lines in parallel, for regular drive applications. ********************************************************************** F E A T U R E S ********************************************************************** IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994 Product Outline --------------- - No-ID physical format - ATA-2 interface - CHS and LBA mode - Enhanced ECC implementation 128 Bit Reed Solomon Code operating 10-bit symbol Multi burst On-the-Fly correction (up to 4 symbols in one sector) - Automatic retry on errors - Self Diagnostics during Power On - Power saving modes - MR Head technology - MCC standardized mounting holes and interface connector - Closed Loop actuator servo - Dedicated head landing zone - Automatic actuator lock - No preventive maintenance Error Recovery -------------- Errors occuring with the drive are handled by the error recovery procedure. Errors that are uncorrectable after of the error recovery procedures are repported to the host system as non-recoverable errors. Warranty -------- The warranty will be covered by contracts. Identification Labels --------------------- The following labels are affixed to every drive. 1. A label placed on the top of the HDA contains the statement "Made by IBM" or equivalent, Part number, and MLC number. 2. A bar code label placed on the disk drive is based on user request. The location is to be designated in the drawing. 3. Labels containing the vendor's name, disk drive model number, serial number, place of manufacture and UL/CSA certificates. Except for the bar code, the labels may be integrated. Interface Logic Signal Levels ----------------------------- The interface logic signal have the following electrical specifications: Inputs: Input High Voltage 2.0 V min./ Vcc+0.7 V max Input Low Voltage -0.5 V min./ 0.8 V max. Outputs: Output High Voltage 2.4 V min. Output Low Voltage 0.5 V max. Current: Driver Sink Current 24 mA min. Driver Source Current -400 uA min. Data Buffer Test ---------------- The data buffers, a read buffer and a write buffer used as temporally data storages for read/write data transfers, are tested at a power- on-reset and when a drive self-test is requested by the host. The tests consist of write/read hex '00'and hex 'FF'pattern for all bit position of the buffers. Error Recovery -------------- Errors occuring with the drive handled by the error recovery procedure. Errors that are uncorrectable after application of the error recovery procedures are reported to the host system as non-recoverable errors. Sound Power Levels ------------------ The upper limit criteria of the A-weighted sound power levels are given in bels relative to one pico watt and are shown in the following table. Mode | A-weighted Sound Power Level [Bel] -----------+-------------------------------------- Idle | 4.5 -----------+-------------------------------------- Operating | 4.8 Background power levels of the acoustic test chamber for each octave band are to be recorded. Sound power levels are measured with the drive supported by spacers so that the lower surface of the drive is located 25 3mm height from the chamber floor. No sound absorbing material shall be used.