Product Manual
Page 19
...multi-initiator environment by these error recovery functions of the HDDs. (12) Automatic alternate block reassignment If a defective data block is detected during read or write the HDDs can automatically reassign their alternate data block. (13) Programmable data block length Data can be ...bytes. 3. C141-E252 15 The recoverable Error might increase when the format would be specified at initializing with high performance access control. The drive format at factory shipment is sense data (1-13-xx). (14) Defective block slipping A logical data block can be reallocated in the ...
...multi-initiator environment by these error recovery functions of the HDDs. (12) Automatic alternate block reassignment If a defective data block is detected during read or write the HDDs can automatically reassign their alternate data block. (13) Programmable data block length Data can be ...bytes. 3. C141-E252 15 The recoverable Error might increase when the format would be specified at initializing with high performance access control. The drive format at factory shipment is sense data (1-13-xx). (14) Defective block slipping A logical data block can be reallocated in the ...
Product Manual
Page 20
Also, for early detection of environmental conditions. (20) Low acoustic noise The acoustic noise level is very low, and this enables the units to be used in the good ...
Also, for early detection of environmental conditions. (20) Low acoustic noise The acoustic noise level is very low, and this enables the units to be used in the good ...
Product Manual
Page 28
... replaced by alternate block assignments are values under random W/R operation of the HDDs during their life time is less than 100 mVp-p. 2.1.4 Error rate Errors detected during HDD Idle state. (*6) Operating currents are not included in the error rate.
... replaced by alternate block assignments are values under random W/R operation of the HDDs during their life time is less than 100 mVp-p. 2.1.4 Error rate Errors detected during HDD Idle state. (*6) Operating currents are not included in the error rate.
Product Manual
Page 37
... by rotation and circuit delay till reading/writing. The length of the data field is equal to that allows detection and correction of errors in this field, special pattern is a 4-byte error detection code. Any multiple of 4 between 512 and 528 bytes can be specified as the length. (5) BCRC It is written... that of the logical data block which is capable of correcting the single burst error up to 32 bits for each logical block can be detected. (6) ECC This is specified with lengths of up to 200 bits max. C141-E252 33 Single burst errors with a parameter in the data field of...
... by rotation and circuit delay till reading/writing. The length of the data field is equal to that allows detection and correction of errors in this field, special pattern is a 4-byte error detection code. Any multiple of 4 between 512 and 528 bytes can be specified as the length. (5) BCRC It is written... that of the logical data block which is capable of correcting the single burst error up to 32 bits for each logical block can be detected. (6) ECC This is specified with lengths of up to 200 bits max. C141-E252 33 Single burst errors with a parameter in the data field of...
Product Manual
Page 41
Reassign procedure itself is the same as one in the same cell are detected during FORMAT UNIT command execution When the FORMAT UNIT command is continued until all spare sectors in REASSIGN BLOCKS command. C141-E252 37 When they ...
Reassign procedure itself is the same as one in the same cell are detected during FORMAT UNIT command execution When the FORMAT UNIT command is continued until all spare sectors in REASSIGN BLOCKS command. C141-E252 37 When they ...
Product Manual
Page 43
... a defective sector, the block is registered to the G list, another alternate block is allocated.) c) SA and defect map update processing (on the defective data block detected during WRITE command processing as with error. WRITE at executing WRITE AND VERIFY 2) Application requirements When any of the above commands is issued to be...
... a defective sector, the block is registered to the G list, another alternate block is allocated.) c) SA and defect map update processing (on the defective data block detected during WRITE command processing as with error. WRITE at executing WRITE AND VERIFY 2) Application requirements When any of the above commands is issued to be...
Product Manual
Page 44
...the WRITE LONG command is disabled. WRITE at executing WRITE AND VERIFY 2) Application requirements / processing When WRITE/WRITE EXTENDED command detects any Servo error (e.g. Remark: When a write protection is prohibited through the setting terminal, the auto alternate block allocation processing specification...Write offtrack error) and cannot be recovered within the recovery time limit If more than the above mentioned defective block is detected, the alternate block assignment processing for the first defective block is executed but the alternate block assignment processing for the second...
...the WRITE LONG command is disabled. WRITE at executing WRITE AND VERIFY 2) Application requirements / processing When WRITE/WRITE EXTENDED command detects any Servo error (e.g. Remark: When a write protection is prohibited through the setting terminal, the auto alternate block allocation processing specification...Write offtrack error) and cannot be recovered within the recovery time limit If more than the above mentioned defective block is detected, the alternate block assignment processing for the first defective block is executed but the alternate block assignment processing for the second...
Product Manual
Page 64
... FORMAT UNIT command initializes entire surface of the disk using the P lists, verifies data blocks after initialization, and allocates an alternate block for a defect block detected with the FORMAT UNIT command. With initialization, the pattern specified with the initialization data pattern field is written into the data block at initialization for... the "CmpLst" bit on CDB, 000 for the "initializing data pattern" field. are as follows: a. Only the position information of all bytes of defect blocks detected with CDB, the format parameter is registered in step a.
... FORMAT UNIT command initializes entire surface of the disk using the P lists, verifies data blocks after initialization, and allocates an alternate block for a defect block detected with the FORMAT UNIT command. With initialization, the pattern specified with the initialization data pattern field is written into the data block at initialization for... the "CmpLst" bit on CDB, 000 for the "initializing data pattern" field. are as follows: a. Only the position information of all bytes of defect blocks detected with CDB, the format parameter is registered in step a.
Product Manual
Page 70
.... • RAM (microcode is completed. The positioning operation is regarded as follows. c. If the initial self-diagnostics detect an error, the LED on the error detected by the initial self-diagnostics. When sense data has been collected after the start of the initial self-diagnostics. This status... are turned on again. Thereafter, the HDDs can collect sense data when the CHECK CONDITION status is posted. If the initial self-diagnostics detect an error, the CHECK CONDITION status is posted for a maximum of 2 seconds after the CHECK CONDITION status has been posted, the CHECK...
.... • RAM (microcode is completed. The positioning operation is regarded as follows. c. If the initial self-diagnostics detect an error, the LED on the error detected by the initial self-diagnostics. When sense data has been collected after the start of the initial self-diagnostics. This status... are turned on again. Thereafter, the HDDs can collect sense data when the CHECK CONDITION status is posted. If the initial self-diagnostics detect an error, the CHECK CONDITION status is posted for a maximum of 2 seconds after the CHECK CONDITION status has been posted, the CHECK...
Product Manual
Page 71
... the MODE SELECT parameter value (read/write error recovery parameter, additional error recovery parameter) which the initiator specifies at the time of the detected error. The self- When an error is set to the type of issuing the SEND DIAGNOSTIC command. When the UnitOfl bit on the error...on the CDB in the seek or write/read test for the SEND DIAGNOSTIC command. The HDD status after the CHECK CONDITION status is not detected, the consecutive tests are executed till last test but the self-diagnostics terminates with the CHECK CONDITION status. Error recovery during the seek or...
... the MODE SELECT parameter value (read/write error recovery parameter, additional error recovery parameter) which the initiator specifies at the time of the detected error. The self- When an error is set to the type of issuing the SEND DIAGNOSTIC command. When the UnitOfl bit on the error...on the CDB in the seek or write/read test for the SEND DIAGNOSTIC command. The HDD status after the CHECK CONDITION status is not detected, the consecutive tests are executed till last test but the self-diagnostics terminates with the CHECK CONDITION status. Error recovery during the seek or...
Product Manual
Page 72
... with the READ, READ EXTENDED, or VERIFY command. 68 C141-E252 The error status is not cleared even if the error information (sense data) is detected in the hardware function test, the HDDs post the CHECK CONDITION status for further details of the command specifications. 6.1.2 Test programs The basic operations of...
... with the READ, READ EXTENDED, or VERIFY command. 68 C141-E252 The error status is not cleared even if the error information (sense data) is detected in the hardware function test, the HDDs post the CHECK CONDITION status for further details of the command specifications. 6.1.2 Test programs The basic operations of...
Product Manual
Page 77
... where the error first occurred. For an explanation of the HDD, an interrupt occurs. An error posted in an operation test may detect an intermittent or nonfatal error such as abnormal noise, abnormal odor, or very slow operation. To analyze the error posted in the operation... look for a possibly faulty subassembly or part of functions. 6.3 Operation Check 6.3 Operation Check 6.3.1 Initial seek operation check If an error is detected during initialization by the initial seek operation check routine at power-on the PCBA. This test may be investigated. The procedures to the user. If...
... where the error first occurred. For an explanation of the HDD, an interrupt occurs. An error posted in an operation test may detect an intermittent or nonfatal error such as abnormal noise, abnormal odor, or very slow operation. To analyze the error posted in the operation... look for a possibly faulty subassembly or part of functions. 6.3 Operation Check 6.3 Operation Check 6.3.1 Initial seek operation check If an error is detected during initialization by the initial seek operation check routine at power-on the PCBA. This test may be investigated. The procedures to the user. If...
Product Manual
Page 78
...Maintenance 6.4 Troubleshooting 6.4.1 Outline of maintenance, we recommend replacing the HDD as a unit. Depending on the maintenance level, analyze the error to Fujitsu, for HDD errors. Full-scale troubleshooting is usually required if the error cause is faulty. If the error cause is clear (e.g., abnormal ...field, to find faulty part (HDD or system). 74 C141-E252 If replacing the HDD rectifies the fault, return the removed HDD to detect a possibly faulty part (HDD, or HDD part). Troubleshooting must be done in the field At this level of troubleshooting procedures This section ...
...Maintenance 6.4 Troubleshooting 6.4.1 Outline of maintenance, we recommend replacing the HDD as a unit. Depending on the maintenance level, analyze the error to Fujitsu, for HDD errors. Full-scale troubleshooting is usually required if the error cause is faulty. If the error cause is clear (e.g., abnormal ...field, to find faulty part (HDD or system). 74 C141-E252 If replacing the HDD rectifies the fault, return the removed HDD to detect a possibly faulty part (HDD, or HDD part). Troubleshooting must be done in the field At this level of troubleshooting procedures This section ...
Product Manual
Page 80
...signal checking. Also if a clear error (erroneous servo track information or noisy HDD) is correct. Replace the HDD, and check that the test method is detected in any way. • Never open the HDD for any warranties. 76 C141-E252 A media defect list must be included with the HDD returned to..., we recommend additional testing of the HDD. The sense data posted from the HDD or deface them in the DE, return the whole HDD to Fujitsu for repair. If the error does not recur with troubleshooting. If the HDD error recurs or a possibly faulty part is correct. Damage • Never ...
...signal checking. Also if a clear error (erroneous servo track information or noisy HDD) is correct. Replace the HDD, and check that the test method is detected in any way. • Never open the HDD for any warranties. 76 C141-E252 A media defect list must be included with the HDD returned to..., we recommend additional testing of the HDD. The sense data posted from the HDD or deface them in the DE, return the whole HDD to Fujitsu for repair. If the error does not recur with troubleshooting. If the HDD error recurs or a possibly faulty part is correct. Damage • Never ...
Product Manual
Page 88
...), (4-40-xx), (4-C4-xx), and (4-44-xx) indicate one of the following : • A target sector could not be detected using a REASSIGN BLOCKS command. In this case, assign an alternate block to the error-detected block using the sector counter. • A seek process overran the specified time. • A write to Subsection 4.3.2 "REASSIGN BLOCKS...
...), (4-40-xx), (4-C4-xx), and (4-44-xx) indicate one of the following : • A target sector could not be detected using a REASSIGN BLOCKS command. In this case, assign an alternate block to the error-detected block using the sector counter. • A seek process overran the specified time. • A write to Subsection 4.3.2 "REASSIGN BLOCKS...
Product Manual
Page 89
... bus. Glossary Additional Sense Code This is a 1-byte code displayed in the sense data and is information which specifies the type of error that was detected. CDB Command Descriptor Block A series of data which describes commands related to input/output operations, sent from the initiator to the initiator by the target... of each command is the SAS device that executes the input/output operations initiated by the target for classifying the type of error that was detected. Sense Key This is a 4-bit code displayed in the sense data. C141-E252 85
... bus. Glossary Additional Sense Code This is a 1-byte code displayed in the sense data and is information which specifies the type of error that was detected. CDB Command Descriptor Block A series of data which describes commands related to input/output operations, sent from the initiator to the initiator by the target... of each command is the SAS device that executes the input/output operations initiated by the target for classifying the type of error that was detected. Sense Key This is a 4-bit code displayed in the sense data. C141-E252 85