Hitachi HUS157373EL3600, HUS157373EL3800 Temperature Limits unit C, K6602906 26/46 2003/6/12

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7.4 Precautions on the off-line test or bench test

When the off-line test or bench test is performed the drive should be tightly fixed and cooled. The set-up should be similar to the actual system configuration.

7.5 Cooling of the drive

Keep the drive (HDA and PCB) cool by using a FAN. Reliability and life of the drive increases as the temperature is lower.

Caution

7.6 Reliability temperature

The temperature measurement points and temperature limits are shown below.

1.The maximum temperature assures the data reliability, seek error rate, and must not be exceeded.

2.The reliability temperature maintains the MTBF of the drive and must not be exceeded in order to ensure its reliability. MTBF is also based on a nominal voltage condition.

3.The maximum temperature of HDA includes momentary temperature rise. Average temperature of HDA has to be less than this temperature.

Table 7.1 Temperature Limits (unit: °C)

Measurement points

HDA(top)

HDA(bottom)

IC(RW)

IC(MPU)

Maximum temperature

65

65

85

85

Reliability temperature

50

50

70

70

HDA(top)

IC(RW)

HDA(bottom)

Breathing hole

IC(MPU)

Figure 7.4 Temperature Measurement Points

Drawing No. Sheet No. Revision 5

K6602906

26/46

2003/6/12

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Contents Scsi OEM ManualK6602906 2003/6/12 Revision ControlInfluence for environment General cautions for safetyHeadline of safety caution Safety cautions for this product Warranty and Limited Liability Table of Contents Page Features ModelsStandards and Related Documents Description CharacteristicsCharacteristics K6602906 10/46 2003/6/12K6602906 11/46 2003/6/12 Environmental conditions and reliabilityEnvironmental conditions and reliability Vibration test direction Shock test direction Ultrastar 15K73-73 Ultrastar 15K73-36 IOs per second Power measurement OperatingUnitW DC power Interface DC Power RequirementSpindle Start and Stop Start and Stop Time Power supply currentCurrent transition for +12V Start and Stop timePage K6602906 18/46 2003/6/12 Connecting MethodsInterface Cable Daisy Chain Page Scsi Interface Page Scsi Commands Supported Mounting and Handling Good case Bad case K6602906 24/46 2003/6/12Mounting dimensions K6602906 25/46 2003/6/12Temperature Limits unit C K6602906 26/46 2003/6/12Precautions for handling Maintenance Interface connectors Physical interfaceInterface cable WIDE, Single-ended mode Interface cable WIDE, LVD modeConnector Layout Wide LVD drive 35±0.25 50.8±0.5 SCA-2 LVD drive Dimension101.6±0.25 K6602906 32/46 2003/6/12Pin assignment Pin assignment of Scsi Bus Connector C1 WIDE, LVD mode GND Pin assignment of Scsi Bus Connector C1 SCA-2, LVD mode BSY +BSY ATNK6602906 37/46 2003/6/12 Pin assignment of Auxiliary Connector C4 Wide LVD drivePin assignment of Option Jumper Connector C3 Wide LVD drive NW drive NC drive K6602906 38/46 2003/6/12Jumper Socket setting Jumper connector layout Wide LVD driveJumper connector layout SCA-2 LVD drive SAC-2 LVD driveOption Jumper Connector C3 Scsi ID #Scsi ID Disable Auto Start K6602906 43/46 2003/6/12Force Single-Ended bus mode Enable Delayed StartK6602906 45/46 2003/6/12 Scsi bus Terminator PowerWrite Protect K6602906 46/46 2003/6/12 Extension connectorJumper socket

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.