Specifications
Page 5
.... Use original packages (50 units' package) during handling or drive failure. Hitachi makes no representations or warranties with pallet to the contents hereof and specifically disclaims any damage. (Keep some extra packages for the drive transportation) 22. Recorded data on should not exceed one year. 20. To returning over 100 units, use original outside package...
.... Use original packages (50 units' package) during handling or drive failure. Hitachi makes no representations or warranties with pallet to the contents hereof and specifically disclaims any damage. (Keep some extra packages for the drive transportation) 22. Recorded data on should not exceed one year. 20. To returning over 100 units, use original outside package...
Specifications
Page 6
...Specification Summary 3.1 Principal Specifications 3.2 Environmental Specifications and Reliability 3.3 Drive Usage Condition Specifications 3.4 Load/Unload Specifications 3.4.1 Normal Load/Unload 3.4.2 Emergency Unload 3.4.3 Required Power Off Sequence 4.0 Installation 4.1 Installation Direction 4.2 Mounting HDD 4.2.1 Mounting HDD with Screws 4.2.2 Single HDD Test Condition 4.2.3 Attention for HDD Installation 4.3 Drive Address Setting(DRIVE 0/DRIVE... Page 2 9 9 10 12 13 13 15 16 17 17 17 17 18 18 19 19 20 21 21 22 23 23...
...Specification Summary 3.1 Principal Specifications 3.2 Environmental Specifications and Reliability 3.3 Drive Usage Condition Specifications 3.4 Load/Unload Specifications 3.4.1 Normal Load/Unload 3.4.2 Emergency Unload 3.4.3 Required Power Off Sequence 4.0 Installation 4.1 Installation Direction 4.2 Mounting HDD 4.2.1 Mounting HDD with Screws 4.2.2 Single HDD Test Condition 4.2.3 Attention for HDD Installation 4.3 Drive Address Setting(DRIVE 0/DRIVE... Page 2 9 9 10 12 13 13 15 16 17 17 17 17 18 18 19 19 20 21 21 22 23 23...
Specifications
Page 14
...certain conditions of the voltage specifications(Table 3.1) and environmental specifications(Table 3.2). *4 : For...the system. The average current may perform a spin up , the drive may have some tolerance after Read/Write operation. Caution Voltage rise time ...of 1,000 full stroke seeks, Voltage 5.0V, Temperature 25°C. Average of 10,000 random seeks, Voltage 5.0V, Temperature 25°C. When this power transition....over current protection for the protection. *5 : For more information, refer to 20 seconds in which the power voltage and the temperature are unloaded. *7: Power ...
...certain conditions of the voltage specifications(Table 3.1) and environmental specifications(Table 3.2). *4 : For...the system. The average current may perform a spin up , the drive may have some tolerance after Read/Write operation. Caution Voltage rise time ...of 1,000 full stroke seeks, Voltage 5.0V, Temperature 25°C. Average of 10,000 random seeks, Voltage 5.0V, Temperature 25°C. When this power transition....over current protection for the protection. *5 : For more information, refer to 20 seconds in which the power voltage and the temperature are unloaded. *7: Power ...
Specifications
Page 15
...ESD bag and desiccant. Item Specification DK23CA-30F DK23CA-30/15/75 1 Ambient *1 Operational 5 to 55°C temperature Non-operational -40 to 70°C *2 Temperature gradient Max. 20°C /hour 2 Relative humidity Operational 5 to 90 % Non-operational 5 to 0°C, the drive should be packed in the...;C Temperature at a point 10 mm away from the nameplate of the maximum wet bulb 40°C , the drive should be measured at point 10 mm away from the nameplate, a substitution method is 12 months. *3 : In case of the drive. Caution Maximum power-off ...
...ESD bag and desiccant. Item Specification DK23CA-30F DK23CA-30/15/75 1 Ambient *1 Operational 5 to 55°C temperature Non-operational -40 to 70°C *2 Temperature gradient Max. 20°C /hour 2 Relative humidity Operational 5 to 90 % Non-operational 5 to 0°C, the drive should be packed in the...;C Temperature at a point 10 mm away from the nameplate of the maximum wet bulb 40°C , the drive should be measured at point 10 mm away from the nameplate, a substitution method is 12 months. *3 : In case of the drive. Caution Maximum power-off ...
Specifications
Page 16
... at normal and emergency unloading operations. *5 : Caution Data reliability is specified at power-on hours (POH) : Less than 20% of locking magnet latch will occur at product shipment, except during startup, seek, load, unload or stop. *4 : 3.9 Bels...conditions, please consult our sales representatives or application engineers if the drive may be measured through 50 ohm resistor. -External Magnetic Field : Within specifications given in Table 3.1 "Principal Specifications" -Drive Grounding : Drive frame should be operated outside these conditions. -Power on and ...
... at normal and emergency unloading operations. *5 : Caution Data reliability is specified at power-on hours (POH) : Less than 20% of locking magnet latch will occur at product shipment, except during startup, seek, load, unload or stop. *4 : 3.9 Bels...conditions, please consult our sales representatives or application engineers if the drive may be measured through 50 ohm resistor. -External Magnetic Field : Within specifications given in Table 3.1 "Principal Specifications" -Drive Grounding : Drive frame should be operated outside these conditions. -Power on and ...
Specifications
Page 17
... normal unload operation is performed by the Host side. [Sequence #3]: Power off the drive Above sequence is required for the Host system at Power off, Suspend and Hibernation operations... maximum number of following commands. - Soft Reset does not unload the heads from DK23CA-xx. [Sequence #2]: Check the Status Register, and wait the command complete. 3.4 Load/Unload Specifications Load /Unload is a mechanism to load/unload the heads on the disk surfaces....: Such as explained in Sec. 3.4.2. 3.4.2 Emergency Unload The emergency unload is limited to maximum 20,000 times during HDD life.
... normal unload operation is performed by the Host side. [Sequence #3]: Power off the drive Above sequence is required for the Host system at Power off, Suspend and Hibernation operations... maximum number of following commands. - Soft Reset does not unload the heads from DK23CA-xx. [Sequence #2]: Check the Status Register, and wait the command complete. 3.4 Load/Unload Specifications Load /Unload is a mechanism to load/unload the heads on the disk surfaces....: Such as explained in Sec. 3.4.2. 3.4.2 Emergency Unload The emergency unload is limited to maximum 20,000 times during HDD life.
Specifications
Page 30
.... Table 6.2 Signal List(3/3) Description This signal indicates that a device is active or that data is turned on. If the cable length is not within this specification, it is ready to +5.25V or an open circuit Low level +0.4V or less (IOL=2mA), +0.5V or less (IOL=12mA) Note) The I/F ...cable should be no longer than 50cm(20 inches) including the circuit pattern length in response to DMARQ to either acknowledge that data has been accepted, or that Drive 1 is present when the power is available shall use this signal. Signal name DASP- Upon...
.... Table 6.2 Signal List(3/3) Description This signal indicates that a device is active or that data is turned on. If the cable length is not within this specification, it is ready to +5.25V or an open circuit Low level +0.4V or less (IOL=2mA), +0.5V or less (IOL=12mA) Note) The I/F ...cable should be no longer than 50cm(20 inches) including the circuit pattern length in response to DMARQ to either acknowledge that data has been accepted, or that Drive 1 is present when the power is available shall use this signal. Signal name DASP- Upon...
Specifications
Page 38
...shall be disabled Bit 9 1 = LBA supported Bit 8 1 = DMA supported Bit 7 - 0 Vendor Specific Value (HEX.) 045Ah See table 6.6 C837h See table 6.6 See table 6.6 0003h DK23CA-15/ 75: 0400h DK23CA-30F/ 30: 1000h 0004h 8010h 0000h 0B00h K6602637 Rev.3 02.27.01 - 38 - Table 6.5 Identify... unformatted bytes per track 5 Number of unformatted bytes per sector 6 Number of logical sectors per logical track 7-9 Vendor specific 10-19 Serial number (20 ASCII characters) 20 Buffer type 0000h = Not specified 0001h = Single port single buffer 0002h = Dual port multi-sector buffer 0003h = ...
...shall be disabled Bit 9 1 = LBA supported Bit 8 1 = DMA supported Bit 7 - 0 Vendor Specific Value (HEX.) 045Ah See table 6.6 C837h See table 6.6 See table 6.6 0003h DK23CA-15/ 75: 0400h DK23CA-30F/ 30: 1000h 0004h 8010h 0000h 0B00h K6602637 Rev.3 02.27.01 - 38 - Table 6.5 Identify... unformatted bytes per track 5 Number of unformatted bytes per sector 6 Number of logical sectors per logical track 7-9 Vendor specific 10-19 Serial number (20 ASCII characters) 20 Buffer type 0000h = Not specified 0001h = Single port single buffer 0002h = Dual port multi-sector buffer 0003h = ...