Hitachi HUS157336EL3800, HUS157373EL3800, HUS157336EL3600 DC power Interface, DC Power Requirement

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4 DC power Interface

4.1 DC Power Requirement

The drives are operated on DC power (+5V, +12V) only. No power sequencing is required.

The +5 and +12 Volts can be applied in any order.

Table 4.1 DC Power Requirement

Power supply	Voltage tolerance	Allowed ripple and noise
+5V DC	5.0V +/-5%	Less than 150mVp-p (0 - 100kHz)
		Less than 100mVp-p (100kHz - 10MHz)
+12V DC	12.0V +/-5%	Less than 150mVp-p (0 - 100kHz)
		Less than 100mVp-p (100kHz - 10MHz)

Note 1. Voltage tolerance is measured at the DC power connector on the PCB. The ripple current occurs during the motor start-up and seek.

Appropriate size of the DC Power cable is recommended to reduce the above ripple and noise.

Note 2. In case of fluctuations in the DC power (spikes, momentary shut off, etc.), the data being recorded or to be recorded from buffer memory are not assured.

Drawing No. Sheet No. Revision 5
K6602906	15/46	2003/6/12

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Contents OEM Manual ScsiRevision Control K6602906 2003/6/12General cautions for safety Headline of safety cautionInfluence for environment Safety cautions for this product Warranty and Limited Liability Table of Contents Page Models FeaturesStandards and Related Documents K6602906 10/46 2003/6/12 CharacteristicsCharacteristics DescriptionEnvironmental conditions and reliability Environmental conditions and reliabilityK6602906 11/46 2003/6/12 Vibration test direction Shock test direction Power measurement Operating UnitWUltrastar 15K73-73 Ultrastar 15K73-36 IOs per second DC Power Requirement DC power InterfaceStart and Stop time Power supply currentCurrent transition for +12V Spindle Start and Stop Start and Stop TimePage Connecting Methods Interface Cable Daisy ChainK6602906 18/46 2003/6/12 Page Scsi Interface Page Scsi Commands Supported Mounting and Handling K6602906 24/46 2003/6/12 Good case Bad caseK6602906 25/46 2003/6/12 Mounting dimensionsK6602906 26/46 2003/6/12 Temperature Limits unit CPrecautions for handling Maintenance Physical interface Interface connectorsInterface cable WIDE, LVD mode Interface cable WIDE, Single-ended modeConnector Layout Wide LVD drive K6602906 32/46 2003/6/12 SCA-2 LVD drive Dimension101.6±0.25 35±0.25 50.8±0.5Pin assignment Pin assignment of Scsi Bus Connector C1 WIDE, LVD mode GND BSY +BSY ATN Pin assignment of Scsi Bus Connector C1 SCA-2, LVD modePin assignment of Auxiliary Connector C4 Wide LVD drive Pin assignment of Option Jumper Connector C3 Wide LVD driveK6602906 37/46 2003/6/12 K6602906 38/46 2003/6/12 NW drive NC driveJumper connector layout Wide LVD drive Jumper Socket settingSAC-2 LVD drive Jumper connector layout SCA-2 LVD driveScsi ID # Option Jumper Connector C3Scsi ID K6602906 43/46 2003/6/12 Disable Auto StartEnable Delayed Start Force Single-Ended bus modeScsi bus Terminator Power Write ProtectK6602906 45/46 2003/6/12 Extension connector Jumper socketK6602906 46/46 2003/6/12

HUS157373EL3800, HUS157373EL3600, HUS157336EL3600, HUS157336EL3800 specifications

The Hitachi HUS157336EL3600 and HUS157373EL3600, along with the HUS157336EL3800 and HUS157373EL3800, are part of the Hitachi Virtual Storage Platform (VSP) E-series, designed to address the demanding needs of enterprise environments. These high-capacity storage systems are tailored for data-intensive applications, ensuring reliability, performance, and scalability.

A standout feature of the HUS157336EL and HUS157373EL series is their exceptional storage capacity, with the former offering up to 36TB and the latter providing up to 73TB of available storage. This substantial capacity makes them ideal for organizations storing vast amounts of unstructured data, including multimedia files, large databases, and backup solutions.

Both models leverage advanced data protection technologies. Hitachi’s Data Protection Manager (DPM) technology provides robust backup and recovery solutions, enabling businesses to safeguard their critical information effortlessly. Additionally, features like snapshots and replication guarantee data integrity and accessibility, even in the event of hardware failure or accidental deletions.

Performance is another critical aspect. These systems utilize Hitachi’s proprietary Flash of Flash (FoF) technology, which significantly enhances input/output operations per second (IOPS) while minimizing latency. This is particularly beneficial for mission-critical applications that require rapid data retrieval and processing.

Moreover, the HUS157336EL and HUS157373EL series support automated tiering and storage optimization. This allows organizations to manage their storage resources efficiently, moving less frequently accessed data to lower-cost storage media without any disruption to daily operations. This feature not only helps manage costs but also enhances the overall performance of the system.

Both the HUS157336EL3600 and HUS157373EL3600 are built with energy efficiency in mind, featuring power-saving technologies that reduce energy consumption while maintaining top-notch performance. This focus on sustainability aligns with the growing need for organizations to operate environmentally responsibly.

In summary, the Hitachi HUS157336EL3600, HUS157373EL3600, HUS157336EL3800, and HUS157373EL3800 exemplify cutting-edge storage solutions that cater to the needs of modern enterprises. With high capacity, advanced data protection, exceptional performance, automated tiering, and energy efficiency, these systems represent a significant investment in securing and managing critical data assets for businesses across various industries.