Product Manual
Page 6
... "the hard disk drive (HDD)," "the disk drive" or "the device" in this manual and forward it to understand, opinions from the HDD or deface them in the text are needed. ATTENTION Please forward any comments you may occur if the user does not perform the procedure...the following is represented as X'17B9', 17B9h or 17B9H. CONVENTIONS USED IN THIS MANUAL The MBA3300NC, MBA3300NP, MBA3147NC, MBA3147NP, MBA3073NC, and MBA3073NP disk drives are described as "010". Hexadecimal number is an example: (Example) CAUTION Damage Never remove any way. IMPORTANT This indicates information...
... "the hard disk drive (HDD)," "the disk drive" or "the device" in this manual and forward it to understand, opinions from the HDD or deface them in the text are needed. ATTENTION Please forward any comments you may occur if the user does not perform the procedure...the following is represented as X'17B9', 17B9h or 17B9H. CONVENTIONS USED IN THIS MANUAL The MBA3300NC, MBA3300NP, MBA3147NC, MBA3147NP, MBA3073NC, and MBA3073NP disk drives are described as "010". Hexadecimal number is an example: (Example) CAUTION Damage Never remove any way. IMPORTANT This indicates information...
Product Manual
Page 7
... of terminals not described in this manual are used, inserting the cables in minor or moderate personal injury if the user does not perform the procedure correctly. Make sure that damages to the product or other property may be careful of the connection position of the SCSI connectors...follows: Task Installation A hazardous situation could result in the wrong direction can be blown or the cable may occur if the user does not perform the procedure correctly. Do not change the setting of the terminating resistor power supplier may be prevented. 2. The DE and LSI 71 become ...
... of terminals not described in this manual are used, inserting the cables in minor or moderate personal injury if the user does not perform the procedure correctly. Make sure that damages to the product or other property may be careful of the connection position of the SCSI connectors...follows: Task Installation A hazardous situation could result in the wrong direction can be blown or the cable may occur if the user does not perform the procedure correctly. Do not change the setting of the terminating resistor power supplier may be prevented. 2. The DE and LSI 71 become ...
Product Manual
Page 17
... Configuration This chapter describes the feature and configuration of the HDD, allow the user to construct a high-performance reliable disk subsystem with large storage capacity. The HDDs are high performance large capacity 3.5-inch hard disk drives with the user's system. The data format can be changed from www.Manualslib.com manuals search engine C141...
... Configuration This chapter describes the feature and configuration of the HDD, allow the user to construct a high-performance reliable disk subsystem with large storage capacity. The HDDs are high performance large capacity 3.5-inch hard disk drives with the user's system. The data format can be changed from www.Manualslib.com manuals search engine C141...
Product Manual
Page 19
... Data is supported. When this data buffer. Note: The maximum data transfer rate in a command can be achieved, and the HDD can perform continuous read/write operation when processing data blocks on several tracks or cylinder. (7) Multi-segment data buffer The data buffer is issued without waiting... SCSI bus can be useful with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive. (8) Cache feature After executing the READ command, the HDD reads automatically and stores (prefetches) the subsequent data blocks into the data ...
... Data is supported. When this data buffer. Note: The maximum data transfer rate in a command can be achieved, and the HDD can perform continuous read/write operation when processing data blocks on several tracks or cylinder. (7) Multi-segment data buffer The data buffer is issued without waiting... SCSI bus can be useful with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive. (8) Cache feature After executing the READ command, the HDD reads automatically and stores (prefetches) the subsequent data blocks into the data ...
Product Manual
Page 21
... and stop the spindle motor. (18) Diagnosis The HDD has a diagnostic capability which checks internal controller functions and HDD operations. The disk subsystem with high performance access control. (16) Large capacity A large capacity can be reallocated in wide range of the HDD and function enhancing. Also, for early detection of and...
... and stop the spindle motor. (18) Diagnosis The HDD has a diagnostic capability which checks internal controller functions and HDD operations. The disk subsystem with high performance access control. (16) Large capacity A large capacity can be reallocated in wide range of the HDD and function enhancing. Also, for early detection of and...
Product Manual
Page 22
... outer diameter of servo information in the data. To prevent negative pressure in order to prevent errors being triggered by a direct-drive hall-less DC motor. This filter will trap any particle floating inside the DE contaminant free. The PCBA includes a read channel...spindle motor is stopped. (5) Air circulation (recirculation filter, breather filter) The disk enclosure (DE) configures a clean room to increase the performance of the rotating disks, air is attached. The heads are rotated by external noise and to improve data reliability. (7) Controller circuit The ...
... outer diameter of servo information in the data. To prevent negative pressure in order to prevent errors being triggered by a direct-drive hall-less DC motor. This filter will trap any particle floating inside the DE contaminant free. The PCBA includes a read channel...spindle motor is stopped. (5) Air circulation (recirculation filter, breather filter) The disk enclosure (DE) configures a clean room to increase the performance of the rotating disks, air is attached. The heads are rotated by external noise and to improve data reliability. (7) Controller circuit The ...
Product Manual
Page 23
SCSI bus HDD HDD (#14) (#15) Figure 1.1 System configuration C141-E270 19 Downloaded from www.Manualslib.com manuals search engine The HDDs are connected to the SCSI bus of host systems and are always operated as initiator. The HDDs perform input/output operation as specified by SCSI devices which operate as target. 1.3 System Configuration Figure 1.1 shows the system configuration.
SCSI bus HDD HDD (#14) (#15) Figure 1.1 System configuration C141-E270 19 Downloaded from www.Manualslib.com manuals search engine The HDDs are connected to the SCSI bus of host systems and are always operated as initiator. The HDDs perform input/output operation as specified by SCSI devices which operate as target. 1.3 System Configuration Figure 1.1 shows the system configuration.
Product Manual
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The above does not applied to formatting disks or assigning alternate blocks. 28 Downloaded from www.Manualslib.com manuals search engine C141-E270 Note: The "average DE surface temperature" means the average temperature at the DE surface throughout the year when the HDD is operating. (4) 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 is being performed.
The above does not applied to formatting disks or assigning alternate blocks. 28 Downloaded from www.Manualslib.com manuals search engine C141-E270 Note: The "average DE surface temperature" means the average temperature at the DE surface throughout the year when the HDD is operating. (4) 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 is being performed.
Product Manual
Page 48
... WRITE EXTEND - Then, it is judged to be applied - If the error still occurs after the check repeated three times, it performs the alternate processing. When the alternate processing normally terminates, the WRITE command is allocated.) c) SA and defect data update processing (on ...the G list, another alternate block is executed. Alternate media check Writes the data that causes an unrecoverable error into the alternate block, and performs the media check. (If the alternate block is a defective sector, the block is registered to be defective. WRITE - • Automatic...
... WRITE EXTEND - Then, it is judged to be applied - If the error still occurs after the check repeated three times, it performs the alternate processing. When the alternate processing normally terminates, the WRITE command is allocated.) c) SA and defect data update processing (on ...the G list, another alternate block is executed. Alternate media check Writes the data that causes an unrecoverable error into the alternate block, and performs the media check. (If the alternate block is a defective sector, the block is registered to be defective. WRITE - • Automatic...
Product Manual
Page 93
...using the parameter value set for the system. In the multi-initiator system, parameter setting cannot be set by the user when power is performed by the FORMAT UNIT command, the saved value of parameters described in consideration of the MODE SELECT and MODE SELECT EXTENDED commands and specifying ... procedures. Once parameters are not set the parameters in this section is executed from www.Manualslib.com manuals search engine To obtain the best performance, set or saved with the MODE SELECT or MODE SELECT EXTENDED command, the HDD sets the default values for each SCSI ID of the...
...using the parameter value set for the system. In the multi-initiator system, parameter setting cannot be set by the user when power is performed by the FORMAT UNIT command, the saved value of parameters described in consideration of the MODE SELECT and MODE SELECT EXTENDED commands and specifying ... procedures. Once parameters are not set the parameters in this section is executed from www.Manualslib.com manuals search engine To obtain the best performance, set or saved with the MODE SELECT or MODE SELECT EXTENDED command, the HDD sets the default values for each SCSI ID of the...
Product Manual
Page 95
... function, these parameters need not be set. Refer to Chapter 2 "Data Buffer Management" of the specified values by measuring performance in an operation status under the average system load requirements. It is recommended to use the default setting in consideration of the...Refer to the system requirements: • ARRE • AWRE • TB • PER 2. The user also can arbitrarily specify the following performance factors of the system: • Time required for further details. • Buffer full ratio • Buffer empty ratio Parameter Default value 00...
... function, these parameters need not be set. Refer to Chapter 2 "Data Buffer Management" of the specified values by measuring performance in an operation status under the average system load requirements. It is recommended to use the default setting in consideration of the...Refer to the system requirements: • ARRE • AWRE • TB • PER 2. The user also can arbitrarily specify the following performance factors of the system: • Time required for further details. • Buffer full ratio • Buffer empty ratio Parameter Default value 00...
Product Manual
Page 99
... and maintenance. 6.1 Diagnostics 6.1.1 Self-diagnostics The HDD has the following self-diagnostic function. For a general check of the HDD including the operations of the tests performed with the self-diagnostics. Table 6.1 Self-diagnostic functions C141-E270 95 Downloaded from www.Manualslib.com manuals search engine This function checks the basic operations...
... and maintenance. 6.1 Diagnostics 6.1.1 Self-diagnostics The HDD has the following self-diagnostic function. For a general check of the HDD including the operations of the tests performed with the self-diagnostics. Table 6.1 Self-diagnostic functions C141-E270 95 Downloaded from www.Manualslib.com manuals search engine This function checks the basic operations...
Product Manual
Page 101
...-02]) during the interval from www.Manualslib.com manuals search engine After that were stacked during the seek or the write/read test, the HDD performs the error recovery according to 0, the HDD executes the hardware function test only once. When the error is detected during self-diagnostics During the self...
...-02]) during the interval from www.Manualslib.com manuals search engine After that were stacked during the seek or the write/read test, the HDD performs the error recovery according to 0, the HDD executes the hardware function test only once. When the error is detected during self-diagnostics During the self...
Product Manual
Page 108
...user may be used , and are not covered by replacing the HDD. 6.3.3 Diagnostic test The diagnostic test is usually a combination of specific disk drive functions or group of test equipment used in a faulty HDD, or to collect detailed information about the error. The procedures to the Section 5.6.... status to post the error to the initiator. When receiving the CHECK CONDITION status, the initiator issues a REQUEST SENSE command to check HDD performance. Then, start troubleshooting the whole host system by this test depend largely on , the spindle motor of the HDD. Then, look for ...
...user may be used , and are not covered by replacing the HDD. 6.3.3 Diagnostic test The diagnostic test is usually a combination of specific disk drive functions or group of test equipment used in a faulty HDD, or to collect detailed information about the error. The procedures to the Section 5.6.... status to post the error to the initiator. When receiving the CHECK CONDITION status, the initiator issues a REQUEST SENSE command to check HDD performance. Then, start troubleshooting the whole host system by this test depend largely on , the spindle motor of the HDD. Then, look for ...
Product Manual
Page 111
...com manuals search engine If the error recurs, it is likely that the test method is the HDD, return the whole HDD to Fujitsu for any warranties. To check performance, change the HDD conditions by sense data, and gives supplementary information on finding the error cause (faulty part). Also if a clear... This sense data makes the error type clear (functional, mechanical, or electrical error). If the error does not recur with the HDD returned to Fujitsu. Never open the DE for repair. C141-E270 107 Downloaded from the HDD or deface them in the HDD test, notify the user of the...
...com manuals search engine If the error recurs, it is likely that the test method is the HDD, return the whole HDD to Fujitsu for any warranties. To check performance, change the HDD conditions by sense data, and gives supplementary information on finding the error cause (faulty part). Also if a clear... This sense data makes the error type clear (functional, mechanical, or electrical error). If the error does not recur with the HDD returned to Fujitsu. Never open the DE for repair. C141-E270 107 Downloaded from the HDD or deface them in the HDD test, notify the user of the...
Product Manual
Page 117
In such a case, the HDD generates sense data about the command-issuing initiator. Accordingly, Fujitsu recommends collecting all 48-byte sense data when the host unit collects sense data. C141-E270 113 Downloaded from various sense data are repeated. The ... command, refer to Subsection 3.1.15 "REQUEST SENSE (15)" of 48. Unless otherwise specified, "sense data" means the above three codes. In this chapter, troubleshooting is performed using these three codes. Also in this case, however, the initiator receives part of the sense data, but the remaining part of the tested device...
In such a case, the HDD generates sense data about the command-issuing initiator. Accordingly, Fujitsu recommends collecting all 48-byte sense data when the host unit collects sense data. C141-E270 113 Downloaded from various sense data are repeated. The ... command, refer to Subsection 3.1.15 "REQUEST SENSE (15)" of 48. Unless otherwise specified, "sense data" means the above three codes. In this chapter, troubleshooting is performed using these three codes. Also in this case, however, the initiator receives part of the sense data, but the remaining part of the tested device...
Product Manual
Page 127
... the BUS FREE, ARBITRATION, SELECTION, RESELECTION or INFORMATION TRANSFER phase. Bus phase The name of equipment that was detected. Disconnect Operation performed by the target to input/output operations, sent from the SCSI bus and the initiator temporarily when SCSI bus operation becomes unnecessary during ...command processing. LUN Logical unit number used to perform an input/output operation, and it is described as DATA IN, DATA OUT, COMMAND, STATUS, MESSAGE IN, and MESSAGE OUT. ...
... the BUS FREE, ARBITRATION, SELECTION, RESELECTION or INFORMATION TRANSFER phase. Bus phase The name of equipment that was detected. Disconnect Operation performed by the target to input/output operations, sent from the SCSI bus and the initiator temporarily when SCSI bus operation becomes unnecessary during ...command processing. LUN Logical unit number used to perform an input/output operation, and it is described as DATA IN, DATA OUT, COMMAND, STATUS, MESSAGE IN, and MESSAGE OUT. ...