• Technical specifications

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    Technical specifications

    Technical specifications

    Storage processor assembly specifications
    Parameter (per SP assembly)
    Unity 480/480F
    Unity 680/680F
    Unity 880/880F
    CPU
    Two, 8-core 1.8 GHz Intel Skylake processors
    Two, 12-core 2.1 GHz Intel Skylake processors
    Two, 16-core 2.1 GHz Intel Skylake processors
    Memory
    96 GB (12 x 8 GB)
    192 GB (12 x 16 GB)
    384 GB (12 x 32 GB)
    Embedded SAS ports
    Two, 4-lane 12 GB SAS
    Two, 4-lane 12 GB SAS
    Two, 4-lane 12 GB SAS
    Optional SAS ports
    Four, 4-lane or two, 8-lane 12 Gb/s SAS I/O module
    Four, 4-lane or two, 8-lane 12 Gb/s SAS I/O module
    Four, 4-lane or two, 8-lane 12 Gb/s SAS I/O module
    DAE and drive specifications

    Supported DAEs:

    • 2U, 25-drive disk-array enclosure
    • 3U, 15-drive disk-array enclosure
    • 3U, 80-drive disk-array enclosure
    Table 1. Drive and DAE support
    Parameter
    Unity 480/480F
    Unity 680/680F
    Unity 880/880F
    Maximum drives
    750
    1000
    1500
    Minimum drives
    4
    4
    4
    Maximum DAEs
    48
    60
    60
    Maximum 25-drive DAE
    29 (750)
    39 (1000)
    59 (1500)
    Maximum 15-drive DAE
    48 (745)
    60 (925)
    60 (925)
    Maximum 80-drive DAE
    9 (745)
    12 (985)
    18 (1465)

    Drive counts listed in parentheses next to the maximum amount of DAEs represent the maximum achievable drive count when using the maximum of each DAE, plus the 25 drives on the DPE.

    Embedded module specifications

    Supported optional 4-port cards:

    • 10GbE BaseT 4-port card
    • 25GbE 4-port card

    The 4-port card can also be left unpopulated.

    I/O module specifications

    Supported I/O modules:

    • 4-port 16Gb Fibre Channel I/O module
    • 4-port 25GbE Optical I/O module
    • 4-port 10GbE BaseT I/O module
    • 4-port 12Gb SAS backend I/O module
    Power supply unit specifications

    You can use high line power, such as in a rack, or low line power, such as from a wall power outlet, to supply power to the DPE. All Unity models support both high line and low line power. A step-up transformer, not included, is required to use high line power with Unity 880/880F systems.

    Table 2. Power specifications per Unity model
    Model
    High line
    Low line
    Unity 480/480F
    1800 W
    1450 W
    Unity 680/680F
    1800 W
    1450 W
    Unity 880/880F
    1800 W
    1800 W (Step-up transformer required)

    Dimensions and weight

    Table 3. 2U, 25-drive DPE, dimensions and weight
    Dimension
    Value
    Weight (unpopulated)
    25.9 kg (54.11 lbs)
    Vertical size
    2 NEMA units
    Height
    8.72 cm (3.43 in.)
    Width
    44.72 cm (17.61 in.)
    Depth
    79.55 cm (31.32 in.)
    Note:  The weight does not include mounting rails. Allow approximately 2.3-4.5 kg (5-10 lb) for a rail set.

    Power requirements

    Power consumption values are based on enclosures with all power supplies, drives, embedded modules and I/O modules populated.

    To estimate power consumption values for your specific environment, go to https://powercalculator.emc.com/.

    Table 4. DPE power requirements, per model
    Specification
    Unity 480/480F
    Unity 680/680F
    Unity880/880F
    AC line voltage
    100 to 240 VAC ± 10%, single phase, 47 to 63 Hz
    100 to 240 VAC ± 10%, single phase, 47 to 63 Hz
    100 to 240 VAC ± 10%, single phase, 47 to 63 Hz
    AC line current (operating maximum)
    10.6 A max at 100 VAC; 5.3 A max at 200VAC
    11.72 A max at 100 VAC; 5.86 A max at 200VAC
    14.41 A max at 100 VAC; 7.2 A max at 200VAC
    Power consumption (operating maximum)
    1060 VA (1050W) max at 100 VAC; 1060 VA (1050 W) max at 200 VAC
    1172 VA (1161 W) max at 100 VAC; 1172 VA (1161 W) max at 200 VAC
    1440.77 VA (1411.96) max at 100 VAC; 1440.77 VA (1411.96 W) max at 200 VAC
    Power factor
    0.95 minimum at full load, @ 100/ 200 VAC
    0.95 minimum at full load, @ 100/ 200 VAC
    0.95 minimum at full load, @ 100/ 200 VAC
    Heat dissipation (operating maximum)
    3.78 x 10 6 J/hr, (3,581 Btu/hr) max at 100 VAC; 3.78 x 10 6 J/hr, (3,581 Btu/hr) max 200VAC
    4.18 x 10 6 J/hr, (3,960 Btu/hr) max at 100 VAC; 4.18 x 10 6 J/hr, (3,960 Btu/hr) max 200VAC
    5.08 x 10 6 J/hr, (4,818 Btu/hr) max at 100 VAC; 5.08 x 10 6 J/hr, (4,818 Btu/hr) max 200VAC
    In-rush current
    45 Apk cold per line cord, at any line voltage
    45 Apk cold per line cord, at any line voltage
    45 Apk cold per line cord, at any line voltage
    Startup surge current
    120 Apk hot per line cord, at any line voltage
    120 Apk hot per line cord, at any line voltage
    120 Apk hot per line cord, at any line voltage
    AC protection
    20 A fuse on each power supply, single line
    20 A fuse on each power supply, single line
    20 A fuse on each power supply, single line
    AC inlet type (high line power)
    IEC320-C14 appliance coupler, per power zone
    IEC320-C14 appliance coupler, per power zone
    IEC320-C14 appliance coupler, per power zone
    AC inlet type (low line power)
    IEC320-C20 appliance coupler, per power zone
    IEC320-C20 appliance coupler, per power zone
    IEC320-C20 appliance coupler, per power zone
    Ride-through sharing
    10 ms min
    10 ms min
    10 ms min
    Current sharing
    ± 5 percent of full load, between power supplies
    ± 5 percent of full load, between power supplies
    ± 5 percent of full load, between power supplies

    Operating environment requirements

    Temperature gradient and altitude requirements

    Systems and components must not experience changes in temperature and humidity that are likely to cause condensation to form on or in that system or component. Do not exceed the temperature gradient of 20°C/hr (36°F/hr), or the altitude requirement of 3050 m (10,0000 ft).

    Recommended range of operation

    The recommended range of operation is the limit under which equipment operates the most reliably while still achieving reasonably energy-efficient data center operation.

    The recommended range of operation is 18°C–27°C (64.4°F to 80.6°F) at 5.5°C (41.9°F) dew point to 60% relative humidity and 15°C (59°F) dew point.

    Continuous allowable range of operation

    Data center economization techniques such as free cooling can be employed to improve overall data center efficiency. These techniques can cause equipment inlet conditions to fall outside the recommended range, but still within the continuously allowable range. Equipment can be operated without any hourly limitations in this range.

    The continuous allowable range of operation is 10°C–35°C (50°F–95°F) at 20% to 80% relative humidity with 21°C (69.8°F) maximum dew point (maximum wet bulb temperature). De-rate the maximum allowable dry bulb temperature by 1°C per 300 m above 950 m (1°F per 547 ft above 3117 ft).

    Expanded allowable range of operation

    During certain times of the day or year, equipment inlet conditions can fall outside the continuously allowable range but still within the expanded improbable range. Equipment operation is limited to ≤ 10% of annual operating hours in this range.

    The expanded allowable range of operation is 5°C–10°C and 35°C–40°C (with no direct sunlight on the equipment) at -12°C dew point and 8% to 85% relative humidity with 24°C dew point (maximum wet bulb temperature). Outside the continuously allowable range (10°C–35°C), the system can operate down to 5°C or up to 40°C for a maximum of 10% of its annual operating hours. For temperatures 35 °C–40°C (95°F–104°F), de-rate the maximum allowable dry bulb temperature by 1°C per 175 m above 950 m (1°F per 319 ft above 3117 ft).

    Exceptions to the expanded allowable range of operation

    During certain times of the day or year, equipment inlet conditions can fall outside the continuously allowable range but still within the expanded exceptional range. Equipment operation is limited to ≤ 1% of annual operating hours in this range.

    Exceptions to the expanded allowable range of operation are 5°C–10°C and 35°C–40°C (with no direct sunlight on the equipment) at -12°C dew point and 8% to 85% relative humidity with 24°C dew point (maximum wet bulb temperature). Outside the continuously allowable range (10°C–35°C), the system can operate down to 5°C or up to 45°C for a maximum of 1% of its annual operating hours. For temperatures between 35°C and 45°C (95°F–104°F), de-rate the maximum allowable dry bulb temperature by 1°C per 125 m above 950 m (1°F per 228 ft above 3117 ft).

    DPE airflow

    The DPE uses an adaptive cooling algorithm that increases or decreases fan speed as the unit senses changes to the external ambient temperature. Exhaust increases with ambient temperature and fan speed, and is roughly linear within recommended operating parameters. Note that the information in the table below is typical, and was measured without cabinet front/rear doors that would potentially reduce front-to-back air flow.

    Table 5. DPE airflow
    Max Airflow CFM
    Min Airflow CFM
    Max Power Usage (Watts)
    106 CFM
    40 CFM
    850 W

    Environmental recovery

    If the system exceeds the maximum ambient temperature by approximately 10°C (18°F), the SP assemblies in the system begin an orderly shutdown that saves cached data, and then shut themselves down. Link control cards (LCCs) in each DAE in the system power down disks but remain powered on.

    If the system detects that the temperature has dropped to an acceptable level, it restores power to the DPEs and the LCCs restore power to their disks.

    Shipping and storage requirements

    NOTICE   Systems and components must not experience changes in temperature and humidity that are likely to cause condensation to form on or in that system or component. Do not exceed the shipping and storage temperature gradient of 45°F/hr (25°C/hr).
    Table 6. Shipping and storage requirements
    Requirement
    Description
    Ambient temperature
    -40° F to 149°F (-40°C to 65°C)
    Temperature gradient
    45°F/hr (25°C/hr)
    Relative humidity
    10% to 90% noncondensing
    Elevation
    -50 to 35,000 ft (-16 to 10,600 m)
    Storage time (unpowered) Recommendation
    Do not exceed 6 consecutive months of unpowered storage.

    Shock and Vibration

    Products have been tested to withstand the shock and random vibration levels. The levels apply to all three axes and should be measured with an accelerometer on the equipment enclosures within the cabinet and shall not exceed:

    Platform condition
    Response measurement level
    Non operational shock
    10 G’s, 7 ms duration
    Operational shock
    3 G’s, 11 ms duration
    Non operational random vibration
    0.40 Grms, 5–500 Hz, 30 minutes
    Operational random vibration
    0.21 Grms, 5–500 Hz, 10 minutes

    Systems that are mounted on an approved package have completed transportation testing to withstand the following shock and vibrations in the vertical direction only and shall not exceed:

    Packaged system condition
    Response measurement level
    Transportation shock
    10 G’s, 12ms duration
    Transportation random vibration
    • 1.15 Grms
    • 1 hour Frequency range 1–200 Hz

    Fire suppressant disclaimer

    Fire prevention equipment in the computer room should always be installed as an added safety measure. A fire suppression system is the responsibility of the customer. When selecting appropriate fire suppression equipment and agents for the data center, choose carefully. An insurance underwriter, local fire marshal, and local building inspector are all parties that you should consult during the selection of a fire suppression system that provides the correct level of coverage and protection.

    Equipment is designed and manufactured to internal and external standards that require certain environments for reliable operation. We do not make compatibility claims of any kind nor do we provide recommendations on fire suppression systems. It is not recommended to position storage equipment directly in the path of high pressure gas discharge streams or loud fire sirens so as to minimize the forces and vibration adverse to system integrity.

    Note:  The previous information is provided on an “as is” basis and provides no representations, warranties, guarantees or obligations on the part of our company. This information does not modify the scope of any warranty set forth in the terms and conditions of the basic purchasing agreement between the customer and the manufacturer.

    Air quality requirements

    The products are designed to be consistent with the requirements of the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) Environmental Standard Handbook and the most current revision of Thermal Guidelines for Data Processing Environments, Second Edition, ASHRAE 2009b.

    Cabinets are best suited for Class 1 datacom environments, which consist of tightly controlled environmental parameters, including temperature, dew point, relative humidity and air quality. These facilities house mission-critical equipment and are typically fault-tolerant, including the air conditioners.

    The data center should maintain a cleanliness level as identified in ISO 14664-1, class 8 for particulate dust and pollution control. The air entering the data center should be filtered with a MERV 11 filter or better. The air within the data center should be continuously filtered with a MERV 8 or better filtration system. In addition, efforts should be maintained to prevent conductive particles, such as zinc whiskers, from entering the facility.

    The allowable relative humidity level is 20 to 80% non condensing, however, the recommended operating environment range is 40 to 55%. For data centers with gaseous contamination, such as high sulfur content, lower temperatures and humidity are recommended to minimize the risk of hardware corrosion and degradation. In general, the humidity fluctuations within the data center should be minimized. It is also recommended that the data center be positively pressured and have air curtains on entry ways to prevent outside air contaminants and humidity from entering the facility.

    For facilities below 40% relative humidity, it is recommended to use grounding straps when contacting the equipment to avoid the risk of Electrostatic discharge (ESD), which can harm electronic equipment.

    As part of an ongoing monitoring process for the corrosiveness of the environment, it is recommended to place copper and silver coupons (per ISA 71.04-1985, Section 6.1 Reactivity), in airstreams representative of those in the data center. The monthly reactivity rate of the coupons should be less than 300 Angstroms. When monitored reactivity rate is exceeded, the coupon should be analyzed for material species and a corrective mitigation process put in place.

    Storage time (unpowered) recommendation: do not exceed 6 consecutive months of unpowered storage.