M 2 2 6 1 H B FUJITSU NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 1658| | | Capacity form/unform 357/ 396 MB Heads 8| | | Seek time / track 16.0/ 4.0 ms Sector/track 28| | | Controller SCSI2 DIFFERENTIAL Precompensation Cache/Buffer 64 KB FIFO BUFFER Landing Zone Data transfer rate 1.880 MB/S int Bytes/Sector 1024 4.000 MB/S ext SYNC Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 45 | -40 60 Power: sleep W Humidity % 20 80 | 5 95 standby W Altitude km 3.000| 12.000 idle W Shock g 2 | 20 seek 31.0 W Rotation RPM 3600 read/write W Acoustic dBA 45 spin-up W ECC Bit 56 MTBF h 30000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** FUJITSU M2261/M2262/M2263-H/HA/HB OEM MANUAL 41FH5037E-02 +----------------------------------------------------------+ | 1+-+2 CNH4 CN9 |XX | | | 4+-+3 +-1 |XX | CN3| | 2+-+1 | | |XX | CN7 CNH2 | | | | |XX | +-+ 16+-+15 13+-+14 | | |XX | +-+LED | | +-13|XX 50Pin | | | CNH3 |XX CN1 | 2+-+1 2+---------+16 |XX | CNH1 1+---------+15 +-+ |XX | 2+--------+16 | | |XX | 1+--------+15 +-x |XX | SCSI +-+ |XX | terminating | | |XX | resistors +-x | | +-+ | | | | |XX Power | +-x |XX CN2 +----------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** FUJITSU M2261/M2262/M2263-S/SA/SB/H/HA/HB OEM MAMUAL 41FH5037E-02 Jumper Settings =============== x = Jumpers are set from factory The user MUST NOT change the setting of terminals not described in this section. Do not connect or disconnect connectors or change terminals except for CN3/CN9 when power is on! CNH1 LED display requirement ----------------------------- x 1- 2 CLOSE Lights when the IDD is connected to the SCSI bus 1- 2 OPEN Lights when the disk drive is in seek completion status (READY) CNH1 User setting disabled --------------------------- x 3- 4 CLOSE User setting disabled x 5- 6 CLOSE x 7- 8 CLOSE x 9-10 CLOSE CNH1 UNIT ATTENTION report mode ----------------------------- x 11-12 CLOSE For a command other than INQUIRY, REQUEST SENSE, or PRIORITY RESERVE the IDD responds with the CHECK (SCSI standard). 11-12 OPEN All received commands are executed normally. (The CHECK CONDITION status caused by the UNIT ATTENTION condition is not reported.) IDD response under the UNIT ATTENTION condition. Sets the response method against the received command when the IDD keeps the UNIT ATTENTION conditions. This mode is set for system re- quirement, however, it is recommended to use SCSI standard setting. CNH1 Monitoring mode time -------------------------- Set the mode of the ACK signal response wait time monitoring in the INFORMATION TRANSFER phase, the response wait time monitoring in the RESELECTION phase, and number of retries. This mode setting is valid only when the time monitoring is enabled by the setting terminal CN3/CN9. +--------------+---------------+----------------+-----+-----+-----+ |Monitor. time | Monitor. time | Number retries |CN3/9|CNH1 |CNH1 | |TRANSFER | RESELECTION | RESELECTION |7-8 |13-14|15-16| +--------------+---------------+----------------+-----+-----+-----+ x|umlimited | 250 ms | 128 |CLOSE|CLOSE|CLOSE| +--------------+---------------+----------------+-----+-----+-----+ |30-60s | 250 ms | 10 |CLOSE|CLOSE|OPEN | +--------------+---------------+----------------+-----+-----+-----+ |30-60s | 250 ms | unlimited |CLOSE|OPEN |CLOSE| +--------------+---------------+----------------+-----+-----+-----+ | 1- 2s | 1.5ms | 10 |CLOSE|OPEN |OPEN | +--------------+---------------+----------------+-----+-----+-----+ |unlimited | unlimited | ----- |OPEN |-----|-----| +--------------+---------------+----------------+-----+-----+-----+ CNH2 INQUIRY data setting -------------------------- |INQUIRY VPD|Byte2,bit 2-0|Byte3,bit 3-0|Byte 7 |information|ANSI version |Response data|Provided functio ----------+-----------+-------------+-------------+---------------- x 1- 2 CLOSE| Valid |0,1,0 |0,0,1,0 |Indicates the | |(SCSI-2) |(SCSI-2) |function of the | | | |IDD for each bit ----------+-----------+-------------+-------------+---------------- 1- 2 OPEN | Invalid |0,0,1 |0,0,0,1 |All bits '0' | |(SCSI-1) |(CCS) | ----------+-----------+-------------+-------------+---------------- Set the display contents of data posted to the initiatorfrom the IDD with the INQUIRY command. Select one of the modes depending on the system software requirements. CNH2 Message mode setting -------------------------- Set the issuance mode of the SAVE DATA POINTER message sent to the initiator from the IDD. x 3- 4 CLOSE To disconnect the SCSI bus after execution of data transfer (in DATA IN or DATA OUT phase), issue the SAVE DATA POINTER message and then disconnect the SCSI bus even after the number of all bytes specified with the command is trans- fered. 3- 4 OPEN To disconnect the SCSI bus before executed of the STATUS phase after the number of all bytes speci- fied with the command is transfered (in DATA IN or DATA OUT phase), do not issue the SAVE DATA POINTER message. When disconnecting of the SCSI bus after SAVE DATA POINTER message issuance is set, the processing time for message transmission in- creases but the data pointer restored with the re-connection proces- sing to execute the STATUS phase reflects the final status of data transfer with the command. CNH2 Report mode of MODE SELECT parameter ------------------------------------------ Set wether the error is reported to MODE SELECT command when the IDD applies the parameter rounding process (rounding up or down) to the parameter specified by the INIT during MODE SELECT command execution. x 5- 6 CLOSE GOOD status is reported to even the MODE SELECT command to which the parameter rounding process was applied. 5- 6 OPEN CHECK CONDITION status is reported to the MODE SELECT command to which the parameter rounding process was applied. Sense key in the sense data indicates RECOVERED ERROR [=1] and the sense code indicates Rounded parameter [=37-00]. CNH2 PER default values ------------------------ Set the default value of the PER (post error) flag of the read/write error recovery parameter (page code = 1) and verify error recovery parameter (page code = 7) of the MODE SELECT parameter. | PER default value of | the MODE SELECT parameter -----------+--------------------------- x 7- 8 CLOSE | "0" 7- 8 OPEN | "1" The MODE SELECT parameter value specific to the user can be saved on the disk with the MODE SELECT command specification. There are no MODE SELECT parameter save values on the IDD when the IDD is shipped from the factory. The value set with the terminal is used as the ini- tial value of PER flag when there are no saved values. When a saved value is generated by the user, the IDD reads it when power is turned on and operates using that value. CNH2 Motor start mode ---------------------- x 9-10 CLOSE The motor is started immediately after power is turned on. 9-10 OPEN Starting the motor is controlled with the START/ STOP command. Set how to start the IDD spindle motor. This setting only determines the operation mode when power is turned on. Stopping or restarting the spindle motor is controlled with the START/STOP UNIT command for both modes. By setting this feature, all IDDs spin up when power is supplied. This may cause a surge to the incoming power lines. If multiple IDDs are used in the installation configuration, the SCSI START/STOP command should be utilized. CNH2 SCSI bus parity --------------------- x 11-12 CLOSE SCSI data bus parity check by the IDD executed 11-12 OPEN Not executed Synchronous mode data transfer ------------------------------ Set wether synchronous data transfer is used. To enable synchronous mode transfer, set the allowable scope of the maximum transfer rate in synchronous mode. CNH2 Scope of transfer rate in synchronous mode setting -------------------------------------------------------- x 13-14 CLOSE Enable (max. 4 MB/s) 13-14 OPEN Disable (max. 2.67 MB/s) CNH2 Synchronous mode data transfer setting -------------------------------------------- x 15-16 CLOSE Enabled (synchronous) 15-16 OPEN Disabled (asynchronous) This setting does not affect asynchronous mode transfer. When asynchronous mode transfer is disabled, the IDD operates as follows. The DATA IN and DATA OUT phases of the SCSI bus are executed in asynchronous mode. When the SYNCHRONOUS DATA TRANSFER REQUEST message is sent from the INIT, the IDD replys with the MESSAGE REJECT message. The IDD does not send the SYNCHRONOUS DATA TRANSFER REQUEST message to the INIT. The maximum data transfer rate in synchronous mode is determined when the SYNCHRONOUS DATA TRANSFER REQUEST message is excahnged between the IDD and INIT. The INIT must determine the parameter sent to the IDD when the mes- sage is excahnged in consideration of the signal transfer character- istics of the system SCSI bus and the data reception capacity of the INIT. The IDD can transfer up to 4 MB/s in synchronous mode. However, since the configuration of the SCSI bus and its transfer characteristics differ depending on the system, the maximum transfer rate in which data can be transfered in a stable condition must be determined for each system. When 3 to 4 MB/s synchronous mode transfer is disabled with this ter- minal, the IDD surpresses the data transfer rate to 2.67 MB/s or less when the SYNCHRONOUS DATA TRANSFER REQUEST message is exchanged. When 3 to 4 MB/s synchronous mode transfer is enabled, up to 4 MB/s of data can be transfered. At any rate, the maximum data transfer rate determined when the mes- sage is exchanged does not exceed the value in the parameter of the SYNCHRONOUS DATA TRANSFER REQUEST message declared by the initiator. Therefore, when the initiator declares the parameter within the allowable scope of the system, 3 to 4 MB/s synchronous mode transfer is enabled with this plug. For reference, the IDD data transfer rate in synchronous mode and the restrictions in the system configuration of the SCSI bus are shown below. The following values are rough standards. The values must be evaluated for each system. Single ended SCSI bus +----------------------+------------------+---------------------+ |Maximum data transfer |Maximum length of |Number of connectable| |rate of the IDD (MB/s)|the SCSI cable (m)|SCSI devices | +----------------------+------------------+---------------------+ | 4.00 | 1.00 | 2 | +----------------------+------------------+---------------------+ | 3.43 | 2.50 | 3 | +----------------------+------------------+---------------------+ | 3.00 | 4.00 | 5 | +----------------------+------------------+---------------------+ | 2.67 or less | 6.00 | 8 | +----------------------+------------------+---------------------+ Differential SCSI bus Generally, the destrictions of the system configuration need not be considered. When up to eigth SCSI devices connect to the SCSI cable (up to 25m), data can be transfered at 4 MB/s. CNH3 User setting disabled --------------------------- x 1- 2 CLOSE User setting disabled x 3- 4 CLOSE x 5- 6 OPEN x 7- 8 OPEN CNH3 Drive type setting ------------------------ |M2261|M2262|M2263| The settings of pins 9 to 12 of -------+-----+-----+-----+ CNH3 indicates the IDD model types. 9-10 |OPEN |CLOSE|OPEN | -------+-----+-----+-----+ The user must not change this set- 11-12 |OPEN |OPEN |CLOSE| tings. -------+-----+-----+-----+ CNH3 User setting disabled --------------------------- x 13-14 OPEN x 15-16 OPEN CNH4 SCSI terminating resistor power ------------------------------------ x 1- 2 CLOSE Power is supplied to the terminating resistor x 3 -4 CLOSE from the IDD and TERMPWR pin. Power is supplied to the TERMPWR pin from the IDD. 1 -2 OPEN The TERMPWR pin is not used. Power is supplied to 3 -4 CLOSE the IDD terminating resistor only from the IDD. 1- 2 CLOSE Power is not supplied to the terminating resistor 3- 4 OPEN from the IDD. Power is supplied to the IDD termi- nating resistor only from the TERMPWR pin. 1- 2 OPEN Power is not supplied to the terminating resistor 3- 4 OPEN The table shows, how to supply power to the IDD SCSI terminating re- sistor module and how to use TERMPWR lines on the SCSI bus. When the IDD connects to a position other than at either end of the SCSI cable do not mount the terminating resistor modules on the IDD. +-----------------------------------------------------+ | +------ CNH4 -----+ -+- +5V DC| +++ | 1 2 4 3 | | | | TERMPWR +------+ +-+--+-----+----+-+ + Diode | S *---------+ FUSE +-----+ | | +------+ | C | +------+ +-----+----+ | S | +------+-----+ | I *-----------------------------+ Terminator | | | SIGNAL Mounted | Circuit | | +++ in socket+------+-----+ | | + GND | +-----------------------------------------------------+ CN3/CN9 Setting terminals ------------------------- These terminals can be used as a connector for the external operator panel. Some setting functions are assigned on the same pins of both CN3/CN9. CLOSE and OPEN in this explanation of this section have following meaning: CLOSE The short plug is mounted between specified pins on CN or CN9. OPEN The short plug is removed from between specified pins on both CN3 and CN9. The operator panel for setting features assigned on CN3/CN9 exter- nally can be connected to CN3 or CN9. CN3/9 Offline self-diagnostics ------------------------------ x 1- 2 CLOSE Executed (diagnostic mode) 1- 2 OPEN Stopped (Normal operation mode) Starting and stopping IDD offline self-diagnosis is set as listed in table. IDD controller functions and the basic read/write operations of the disk drive can be tested with the offline self-diagnosis. In normal operations, this setting terminal must be shorted. CN3/9 User setting disabled --------------------------- 3- 4 User setting disabled CN3/9 Read-Ahead caching ------------------------ x 5- 6 CLOSE Enable 5- 6 OPEN Disable Enabling or disabling IDD Read-Ahead caching operations is set as listed in table. This setting terminal can be used to temporarly suppress or enable caching operations to measure the effects of caching. Read-Ahead caching operations can be controlled with the MODE SELECT command parameter. However, the specification of this setting termi- nal has priority over that of the MODE SELECT parameter. When the caching operation is disabled, the specification of the MODE SELECT command has no meaning. CN3/9 Setting SCSI time monitoring ---------------------------------- RESELECTION phase and ACK signal wait time monitoring x 7- 8 CLOSE Executed 7- 8 OPEN Not executed Enabling or disabling the following IDD SCSI time monitoring opera- tions is set as listed. BSY signal wait time monitoring by the INIT in RESELECTION phase ACK signal wait time monitoring by the INIT for the REQ signal in INFORMATION TRANSFER phase To prevent SCSI bus infinite loop due to an operation error, do not disable the SCSI time monitoring except for initiator tests or de- bugging. The time monitoring mode is set with other setting terminal. (CNH1 pin 13-16) CN3/CN9 SCSI ID setting ----------------------- SCSI ID|CN3/9|CN3/9|CN3/9| | 9-10|11-12|13-14| -------+-----+-----+-----+ 0 |OPEN |OPEN |OPEN | Set the SCSI ID so that there are 1 |CLOSE|OPEN |OPEN | no duplicates between SCSI devices 2 |OPEN |CLOSE|OPEN | on the same SCSI bus. 3 |CLOSE|CLOSE|OPEN | 4 |OPEN |OPEN |CLOSE| The priority of SCSI bus ARBITRA- 5 |CLOSE|OPEN |CLOSE| TION phase is determined by SCSI 6 |OPEN |CLOSE|CLOSE| ID as follows: 7>6>5>4>3>2>1>0 x 7 |CLOSE|CLOSE|CLOSE| CN7 External operator panel connector ------------------------------------- pin 01 LED (V) pin 02 WPR (G) pin 03 -WPR pin 04 -LED pin 05 - 10 For internal use CN7 Write protect ----------------- 2- 3 CLOSE Writing to the disk is inhibited x 2- 3 OPEN Writing to the disk is permitted This signal is used with an external write protect switch. As des- cribed, the write protect function is enabled by shortening the WPR (G) terminal and -WPR terminal at the external switch. These terminals should not be used for any purpose other than the external write protect switch. CN7 External LED ---------------- These signals on pin 1 and pin 4 actuate the external LED as same as LED on front panel of the disk drive. The indication can be changed with a setting terminal. (CNH1 pin 1-2) ********************************************************************** I N S T A L L ********************************************************************** FUJITSU M2261/M2262/M2263-S/SA/SB/H/HA/HB OEM MANUAL 41FH5037E-02 Notes on installation ===================== Installation direction ---------------------- horizontally vertically +---------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +--+---------------+---+ | | | | | | +----------------------+ | | | | | | | | | | | | X X | | | | | | +------X-------X-------+ | | | | | | +--+-----X---X-----+---+ | +-----+ +-----+ | | X X | +--+ +--+ | X X | +--X--------X---+ X X If the drive is installed in any of the above three installation directions, the level deviation must not exceed 5*. Never install PCA to the top! Ambient temperature ------------------- The IDD must confirm to the environmental requirements. When the IDD is operating, the ambient temperature measured 3 cm from the Disk Enclosure (DE) surface and from the PCA surface must satisfy the spe- cified requirements. It is recommended that the drive be mounted in such a way that air is moving around the unit at a velocity of approximately 1 m/s. External magnetic field ----------------------- The drive should not be installed near the ferromagnetic body like a speaker to avoid the influence of the external magnetic field. Multi-drive connection ---------------------- The maximum number of SCSI devices that can be connected to the SCSI bus is 8, including the host adapter, IDD, and other SCSI equipment. SCSI cable ---------- The maximum length of SCSI cable is as follows. If more than one SCSI device is connected, the total cable length must not exceed the fol- lowing: Cable length for single ended: 6m Max. Cable length for differential ended: 25m Max. The use of a 25-pair twisted cable satisfying the following require- ments is recommended: Single ended type: Conductor size: 28 American Wire Gauge (AWG) or bigger Characteristic Impedance: 100 to 132 Differential type: Conductor size: 28 AWG or bigger Characteristic Impedance: 100 to 122 Each pair of wires in the 25-pair twisted cable must be connected to pins n and n+1 (where n is an odd number) on the interface connector. Cables having an identical impedance must be use on the same SCSI bus to reduce signal reflection and maintain transmission characteristics When a SCSI device is connected to the SCSI cable except at either end of the cable, connection to the SCSI connector must be at a branchpoint of the cable. If a SCSI device is connected to one end of the SCSI bus, no cable should be connected after the last SCSI device except when the cable has a terminating resistor. Check, that system power is off before connecting or disconnecting cables! Be carefull of the insertion directions of the SCSI connectors. With the system in which terminating resistor power is supplied via the SCSI cable, if the drive power is turned on, the overcurrent protec- tion fuse of the terminating resistor power supplier may be blown or the cable may be burnt if overcurrent protection is not provided. Power cable ----------- IDDs must be star-connected to the DC power sypply (one to one con- nection) to reduce the influence of load variations. Signal ground connector ----------------------- For DC ground, an SG terminal is mounted on the rear of the drive. A DC ground cable may be installed depending on the system require- ments. This cable is generally connected to the ground of the power supply unit. Connection between more than one IDD may be in a daisy chain. Terminator ---------- All SCSI devices on one bus are daisy-chained with a SCSI cable. A terminating resistor must be mounted in the SCSI device at each end of the SCSI cable. Since a SCSI terminating resistor module is mounted in the IDD on shipment, it must be removed when the IDD is not connected at either end of the SCSI cable. Also, a method for the power supply to the terminating resistor must be selected with the setting terminal on the IDD. When connecting the IDD to either end of the SCSI cable, do not de- mount the terminating resistor module. When connecting the IDD to a position other than both ends of the SCSI cable, demount terminating resistor modules. SCSI cable SCSI cable ----------++-------+ ----------++-------++-------X TERM +---++--+ +-xxx---+ +---++--+ +--++---+ | | | TERM | | | | | | | | | | | | | | IDD | | IDD | | IDD | | IDD | +-------+ +-------+ +-------+ +-------+ Correct Correct SCSI cable SCSI cable ---------+ ----------++-------X TERM +-xxx---+ +--xxx--+ | TERM | | TERM | | | | | | IDD | | IDD | +-------+ +-------+ Correct INCORRECT! When removing the terminating resistor module from the socket, be careful not to damage the resistor module pins, mount socket and contiguous parts. When mounting the terminating resistor moudle, check the mounting direction and wether the module is fixed. +- Marker shows pin 1 +- Marker shows pin 1 | | | +-----------------+ | | |* * * * * * * * *| | +*-*-*-*-*-*-*-*-*+ +- * | +- * Resistor | |* * * * * * * * *| +*-*-*-*-*-*-*-*-*+ +-----------------+ Socket, terminating resistor module not present Sequential starting of spindle motors ------------------------------------- After the power is turned on to the IDD, a large amount of current flows in the +12 V DC line when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle motors should be started sequentially using one of the following procedures: 1. Issue START/STOP UNIT commands at 20-second intervals to start the spindle motors. 2. Turn on the +12 V DC power in the power supply unit at 30-second intervals to start the spindle motors sequentially. Noise filter ------------ To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the IDD power supply unit. Attenuation: 40 dB or more at 10 MHz. External operator panel connector --------------------------------- Two types of connectors for the external operator panel are provided on the IDD. They allow connection of an external write protect switch a LED on the front panel and a SCSI ID setting switch. Some signals are assigned on the same pins of both CN3 and CN9. When no external operator panel is connected to the IDD, CN3 and CN9 are used for setting terminal of SCSI ID. When the IDD is shipped from the factory, the short plugs are mounted between all even num- bered and add numbered pins of CN9 and no short plug is mounted on CN3. When the external operator panel is connected to CN3 or CN9, pay attention to the following items: CN3 and CN9 have a physical interchangeability. So, the external operator panel can be connected either connector. When the external operator panel is connected to CN9, all short plugs on CN9 must be removed. However, pins on CN3 corresponding to the signal set on the external operator panel must be opened. When there is a signal not to set on the external operator panel, the state of that signal must be set on CN3 using the short plug. The removed short plug on CN9 can be used for setting the state. When the external operator panel is connected to CN3, the short plug on CN9 corresponding to the signal set on the external operator panel must be removed. When there is a signal not to set on the external operator panel, the state of that signal must be set on CN9 using the short plug. CN3/CN9 +------+ | 1 2| Start/Stop self-diagnostics | 3 4| Reserved | 5 6| Enable/Disble Read-Ahead cache function | 7 8| Enable/Disable SCSI time monitoring | 9 10| ID4 |11 12| ID2 |13 14| ID1 +------+ When there is a signal not to set on the external operator panel con- nected to CN9 (or CN3), the signal must be set on CN3 (or CN9) using the short plug. Pins of CN3 (or CN9) corresponding to the signal to be set on the external operator panel must be opened. CN7 +---+ | 1-+--------------------+ | 2 |Write protect | | 3 |function | | 4-+---------+<---------+ | | external LED | | | 5 | For internal use | . | . |10 | For internal use +---+ The write protect function is enabled by shortening pin 2 and pin 3 of CN7. These terminal should not be used for any purpose other than the external write protect switch. The output signals of pin 1 and pin 4 of CN7 actuate the external LED as same as LED on the front panel of the disk drive. The indication can be changed with a setting terminal. Do not connect or disconnect jumpers after power is on except CN3/CN9 terminals! Setting of CN3/CN9 can be changed when power is on. The SCSI ID setting is valid after power is turned on again or the SCSI bus is reset. Confirming initial operations ----------------------------- Do not move the drive when power is turned on! 1. Initial operation in the case where the jumper is set so that motor starts at power-on. 1. When power is turned on, the IDD executes initial self-diag- nosis. 2. If an error is detected in the initial self-diagnosis, the LED on the front panel blinks. The spindle motor may or may not start rotating in this stage. 3. When the LED display requirements are set to "READY status", the LED on the front panel lights 20 seconds after power is turned on. At this time, the LED on the front panel blinks while the IDD reads "system information" from the system space on the disk. 4. When the LED display requirements are set to "in connection with SCSI bus", the LED on the front panel remains off (when the initiator accesses the IDD via the SCSI bus, the LED lights). However, the disk drive enters the READY status in 20 seconds after power is turned on. At this time, the IDD reads "system information" as in step 3. 2. Initial operation in the case where the jumper is removed so that motor starts with a START/STOP command. 1. When power is turned on, the IDD executes initial self-diag- nosis. 2. If an error is detected in the initial self-diagnosis, the LED on the front panel blinks. 3. The spindle motor does not start rotation until the START/STOP UNIT command for the start is issued. The INIT needs to issue the START/STOP UNIT command to start the spindle motor. 4. The disk drive enters the READY status 20 seconds after the START/STOP UNIT command is issued. At this time, the IDD reads "system information" from the system space on the disk. 5. When the LED requirements are set to "READY status", the LED on the front panel ligths as in step 4. However, the LED ligths in an instant while "system information" is being read. 6. When the LED display requirements are set to "in connection with SCSI bus", the following occurs: * When disconnection processing is enabled with the START/STOP UNIT command (Immed=0), the LED blinks once in steps 3 and 4. * When disconnection processing is disabled with the START/STOP UNIT command (Immed=0), the LED lights when the command is issued in step 3 and it is turned off when step 4 is completed. 3. Items to check if an error occurs. * Check that cables are mounted correctly. * Check that power and voltages are supplied correctly. * Check the setting of each jumper setting terminal. The initial operation depends on the setting of the motor start mode and LED display requirements. * If an error is detected in initial self-diagnosis, the LED on the front panel blinks. In this case, it is recommended to issue the REQUEST SENSE command from the initiator (host system) to obtain information (sense data) for error analysis. When the LED display requirements are set to "READY status", the LED is turned off while the drive continues the seek operations. However, since the LED is turned off for only one blink, the LED may seem to be turned on and off or not turned off at all. When the LED display requirements are set to "in connection with SCSI bus", the LED on the front panel lights only when the IDD is connected to the SCSI bus. Howerver, in some commands or when "disconnection from the bus" is enabled, the LED may only be turned on for an instant. Therefore it may seem that the LED blinks or the LED remains off. Since the IDD has the automatic readjustment function of positi- oning (seek) control, it automatically executes the adjustment operations with seek at specific intervals from power on (first adjustment: 2 minutes after power on). When the LED display re- quirements are set to "READY status", the LED on the front panel blinks during the adjustment. Removing drives --------------- Take the drive offline. Disconnect system power before removing the drive. Do not remove mounting screws holding the cables and drive while power is on. Do not move the drive until it completely stops (15 seconds after spindle motor is stopped with START/STOP UNIT command or after power is turned off). FUJITSU DISK-SUPPORT -------------------- Harddisk parameters for SUN-OS (UNIX) +--------+---------+---------+----------+-----+-------+ |Disk Typ|Data Cyl.|alt. Cyl.|phys. Cyl.|Heads|sec/trk| +--------+---------+---------+----------+-----+-------+ |M2263Sx | 1648 | 2 | 1650 | 15 | 53 | +--------+---------+---------+----------+-----+-------+ ********************************************************************** F E A T U R E S ********************************************************************** FUJITSU M2261/M2262/M2263-S/SA/SB/H/HA/HB OEM MANUAL 41FH5037E-02 Media defect ------------ The number of allowable media defects are: M2261 < 80 M2262 < 110 M2263 < 150 The maximum defect length is 8 bytes. Format capacity --------------- The size of the usable area for storing user data on the IDD (format- ted capacity) varies according the logical data block size. (180, 256, 512, 1024, 2048, 4096, 4160) The data format on the user space can be specified with the MODE SELECT command. SCSI/CCS standard ----------------- The IDD provides not only SCSI basic functions but also the following features: Arbitration Disconnection/reselection Data bus parity Command set which meets the logical specification of the SCSI CCS requirements. The SCSI command can manipulate data through logical block addressing regardless of physical characteristics of the disk drive. This allows software to accommodate future expansion of system functions. High speed data transfer ------------------------ The data transfer rate on the SCSI bus is 1.75 MB/s maximum in asyn- chronous mode and 4.0 MB/s maximum in synchronous mode. Such a high data transfer rate on the SCSI bus can be usefull with the large capacity buffer in the IDD. The maximum data transfer rate in asynchronous mode may be limited by the response time of initiator and the length of SCSI bus length. The maximum data transfer rate in synchronous mode on the single-ended SCSI bus may be limited by the cable length and transmission characteristics of the SCSI bus. 64KB data buffer ---------------- Data is transfered between SCSI bus and disk media through the embed- ded 64KB data buffer in the IDD. Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying the condition of stored data to the data buffer or empty condition of the data buffer, the initiator can perform the effective input/output operations with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive. Read-Ahead cache feature ------------------------ After executing the READ command, the IDD reads automatically and stores (prefetches) the subsequent data blocks into the data buffer (Read-Ahead caching). The high speed sequential data access can be archieved by transfering the data from the data buffer without reaccessing the disk in case the subsequent command requests the prefetched data blocks. Command stack feature --------------------- The IDD has a command stack feature corresponding to up to 7 initia- tors (14 for M2652HD). Therefore, the IDD can accept and stack an input/output command issued by another initiator even if the IDD is executing another command. The stack command is retrieved and exe- cuted in stacked order after the present command has completed. Landing zone ------------ The actuator positions heads on the innermost landing zones over the disk when the power is off or the spindle motor is stopped. SCSI bus configuration ---------------------- Up to eight SCSI devices can be connected to the SCSI bus, with any combination of the SCSI devices that operate as initiator and that operate as target. Each SCSI device on the bus has its own unique address (SCSI-ID: #n). For input/output operation, a peripheral device attached to the SCSI bus that operates as target is addressed in unit called as logical unit. A unique address (LUN: logical unit number) is assigned for each logical unit. The initiator selects one SCSI device by specifying that SCSI ID, then specifies the LUN to select the peripheral device for input/output operation. The IDD is constructed so that the whole volume of disk drive is a single logical unit, the selectable numbers of SCSI ID and LIN are as follows: SCSI ID: Selectable from 0 to 7 LUN: 0 (fixed) +-------------+ +-------------+ SCSI bus +----------+LUN=0 | Host system +--+Host Adapter +-------+---+ IDD |(fixed) | | | ID #7 | | | ID #0 | +-------------+ +-------------+ | +----------+ | +----------+LUN=0 +---+ IDD |(fixed) | | ID #1 | | +----------+ | +------------+ +---+ Controller +--+----+-- | | ID #2 | LUN0 LUN1 | +------------+ Mean Time Between Failures (MTBF) --------------------------------- The estimated MTBF of the IDD during its life time is 30.000 hours after an initial 3-month period. Mean Time To Repair (MTTR) -------------------------- MTTR is the average time taken ba a well-trined service mechanic to diagnose and repair a drive malfunction. The drive is designed for a MTTR of 30 minutes or less. Service life ------------ Overhaul of the drive is not required for the first five years is handled correctly. Data security at power failure ------------------------------ Integrity of the data on the disk is guaranteed against all forms of DC power failure except on blocks where a write operation was being performed. The above does not applied to formatting disks or assigning alternate blocks. DISCLAIMER ---------- Failure of the M226xS/H intelligent disk drive is defined as a failure requiring adjustments, repairs or replacement. Fujitsu is not responsible for drive failures caused by misuse by the user, poor environmental conditions, power trouble, host problems, cable failures, or any failures not caused by the drive itself.