Environmental requirements

Before you install a Storwize® V7000 Gen2 or Storwize V7000 Gen2+ system, your physical environment must meet certain requirements. This includes verifying that adequate space is available and that requirements for power and environmental conditions are met.

Safety notices

Use the following general safety information for all rack-mounted devices:

DANGER
Observe the following precautions when working on or around your IT rack system:
  • Heavy equipment–personal injury or equipment damage might result if mishandled.
  • Always lower the leveling pads on the rack cabinet.
  • Always install stabilizer brackets on the rack cabinet.
  • To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinet.
  • Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top of rack-mounted devices.
    An unstable rack with a shelf with an object on it
  • Each rack cabinet might have more than one power cord. Be sure to disconnect all power cords in the rack cabinet when directed to disconnect power during servicing.
  • Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.
  • An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock. (R001 part 1 of 2)
CAUTION:
  • Do not install a unit in a rack where the internal rack ambient temperatures will exceed the manufacturer's recommended ambient temperature for all your rack-mounted devices.
  • Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked or reduced on any side, front, or back of a unit used for air flow through the unit.
  • Consideration should be given to the connection of the equipment to the supply circuit so that overloading of the circuits does not compromise the supply wiring or overcurrent protection. To provide the correct power connection to a rack, refer to the rating labels located on the equipment in the rack to determine the total power requirement of the supply circuit.
  • (For sliding drawers) Do not pull out or install any drawer or feature if the rack stabilizer brackets are not attached to the rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out more than one drawer at a time.
  • (For fixed drawers) This drawer is a fixed drawer and must not be moved for servicing unless specified by the manufacturer. Attempting to move the drawer partially or completely out of the rack might cause the rack to become unstable or cause the drawer to fall out of the rack. (R001 part 2 of 2)
Important: In addition, remember:
  • The rack design must support the total weight of the installed enclosures and incorporate stabilizing features suitable to prevent the rack from tipping or being pushed over during installation or normal use.
  • The rack design must consider the maximum enclosure operating ambient temperature of 35-degrees C (95-degrees Fahrenheit).
  • The rack must have a safe electrical distribution system. It must provide overcurrent protection for the enclosure and must not be overloaded by the total number of enclosures installed. The electrical power consumption rating that is shown on the nameplate should be observed.
  • The electrical distribution system must provide a reliable ground for each enclosure in the rack.

Power requirements for each power supply

The power that is used by the system depends on various factors, including the number of enclosures and drives in the system and the ambient temperature. Ensure that your environment meets the following power requirements for each of the two power supply units (PSUs) in the enclosure.

Each control enclosure contains two PSUs for redundancy. The total power consumption values represent the total power that is drawn by both PSUs.

To aid in power and cooling requirements planning, Table 1 lists the rating of each power supply unit (PSU) by enclosure.

Table 1. Power specifications per power supply
Model and type PSU Input power requirements Maximum input current Maximum power output Caloric value (BTU / hr)
2076-524 / 2076-624 / 2076-U7A control enclosure with 24 2.5-inch solid-state drives, 2 host adapters, 2 compression accelerators 1200 W 100 V to 240 V single phase AC

At a frequency of 50 Hz or 60 Hz

 12 A for 100 V

7 A for 240 V

 452 W 1542
2076-524 / 2076-624 / 2076-U7A control enclosure with 24 10 K SAS Drives, 2 host adapters, 2 compression accelerators 1200 W 100 V to 240 V single phase AC

At a frequency of 50 Hz or 60 Hz

 12 A for 100 V

7 A for 240 V

 430 W 1467
2076-524 / 2076-624 / 2076-U7A control enclosure with 24 15 K SAS drives, 2 host adapters, 2 compression accelerators 1200 W 100 V to 240 V single phase AC

At a frequency of 50 Hz or 60 Hz

 12 A for 100 V

7 A for 240 V

 471 W 1607
5U Expansion enclosure with 92 3.5-inch form factor SAS drive slots 2400 W 180 V to 264 V single phase AC at a frequency of 47 Hz to 63 Hz 16 A

Requires a C19 power socket (C19 PDU)

 2400 W 8189
Note: One or more C19 power distribution units (PDU) are needed in the rack to connect power to the power supplies for the 5U expansion enclosure.
The power and thermal measurements were obtained in the specific operating environment and under the conditions described. These measurements are presented as an illustration; measurements that are obtained in other operating environments might vary. Conduct your own testing to determine specific measurements for your environment.
Table 2. Power consumption examples per enclosure
Model and type Configuration Total power consumption Caloric value (BTU/hr)
Storwize V7000 Gen2 or Storwize V7000 Gen2+ 2U control enclosure 24 2.5-inch solid-state drives, 2 host adapters, and 2 compression accelerators 452 W 1542
24 10 K SAS drives, 2 host adapters, and 2 compression accelerators 430 W 1467
24 15 K SAS drives, 2 host adapters, and 2 compression accelerators 471 W 1607
2U expansion enclosure 24 2.5-inch flash drives 151 W -
24 10 K SAS drives 175 W -
24 15 K SAS drives 234 W -
2U expansion enclosure 12 7.2 K nearline SAS drives   -
5U expansion enclosure 92 10 TB nearline SAS drives 848 W -
5U expansion enclosure 92 15 TB tier 1 flash drives 748 W -

Each control enclosure contains two PSUs for redundancy. The total power consumption values represent the total power that is drawn by both PSUs.

Environmental requirements

System airflow is from the front to the rear of each 5U expansion enclosure:
  • Airflow passes between drive carriers and through each enclosure.
  • Airflow for the upper 4U of the 5U enclosure enters the front, passes between the disk drives, and exits through the large fans in the rear of the enclosure.
  • Airflow for the lower 1U of the 5U enclosure is driven through the power supplies via 40 mm X 56 mm fans. Air continues through the chassis cooling the ESMs or controllers and exits the rear of the enclosure.
  • The combined power and cooling module exhausts air from the rear of each canister.
Ensure that your environment falls within the ranges that are shown in Table 3.
Table 3. Storwize V7000 Temperature requirements
Environment Ambient temperature Altitude Relative humidity Maximum wet bulb temperature
Operating 5°C to 40°C (41°F to 104°F) 0 - 2133 m
(0 - 7000 ft)		 8% to 80% noncondensing 23°C (73°F)
5°C to 35°C (41°F to 95°F) 2134 - 3048 m
(7001 - 10000 ft)
Non-operating 1°C to 50°C (34°F to 122°F) -305 to 12192 m
(-1000 to 40000 ft)		 8% to 80% noncondensing 27°C (80°F)
Storage 1°C to 60°C (34°F to 140°F) 5% to 80% noncondensing 29°C (84°F)
Shipping -40°C to 60°C (-40°F to 140°F) 5% to 100% condensing, but not precipitating

Dimensions and weight

Ensure that space is available in a rack, capable of supporting the enclosure based on the data shown in Table 4.
Table 4. Physical characteristics for Storwize V7000 Gen2 and Storwize V7000 Gen2+
Enclosure Height Width Depth Maximum weight
Drive ready (without drive modules) Fully configured (with drive modules)
2U control enclosure with 24 drive slots 87 mm (3.46 in.) 483 mm (19.0 in.) 730 mm (28.7 in.) 28.2 kg (62.1 lb) 36.5 kg (80.5 lb)
2U expansion enclosure with 12 drive slots 556 mm (21.9 in.) 16.4 kg (36.2 lb) 26.7 kg (58.9 lb)
2U expansion enclosure with 24 drive slots 556 mm (21.9 in.) 16.7 kg (36.8 lb) 25.0 kg (55.1 lb)
5U expansion enclosure with 92 drive slots 222.2 mm (8.75 in.) 483 mm (19.0 in.) 968 mm (38.1 in.) 67 kg (147.7 lb) 135 kg (297 lb)
Attention: To avoid potential equipment damage during transport and subsequent loss of data, see Procedure: Transporting a 5U 92-drive expansion enclosure. The procedure describes what to do for the following situations.
  • When you are powering off a 92F, 92G, or an A9F 5U expansion enclosure because you intend to transport it to another location
  • When you intend to move a rack that contains a 92F, 92G, or an A9F 5U expansion enclosure
The procedure describes how to remove each drive from the 5U enclosure and transport the enclosure. Removing the drives prevents damage to the drives and makes the lighter enclosure easier to move.
Warning: The 5U expansion enclosure needs 968 mm from the rack front post to the back of the cable management arm (CMA). Some racks do not provide sufficient space to close the rear door. In addition, allow 905 mm from the front post to the back of the enclosure. To allow space for the power cables, provide 60 to 70 mm from the back of the enclosure.
Figure 1 shows the rack space requirements for 5U expansion enclosures.
Figure 1. Rack space requirements for 5U expansion enclosures
Rack space requirements for the 5U expansion enclosure

Additional space requirements

Ensure that these additional space requirements, as shown in Table 5, are available around the enclosures.

Table 5. Clearances
Location Additional space requirements Reason
Left and right sides 50 mm (2 in.) Cooling air flow
Back Minimum: 100 mm (4 in.) (This is not needed for 5U expansion enclosure.) Cable exit

Supported drives

The Storwize V7000 Gen2 and Storwize V7000 Gen2+ models support up to 504 drives in the system with RAID levels 0, 1, 5, 6, and 10. For more imformation about the supported drives, see Replaceable units.

Acoustical specifications for SAS drives for each control enclosure

Table 6. Acoustical specifications
Model and type Acoustical output per enclosure
2U expansion enclosure with 24 2.5-inch drive slots Less than 6.5 B LwA -- Operating (40% Average seek rate) @ 23°C ambient
2076-524 /2076-624 /2076-U7A control enclosure with 24 2.5-inch drive slots Less than 6.3 B LwA – Operating (40% Average seek rate) @ 23°C ambient
Table 7 provides the acoustical specifications for the 5U SAS expansion enclosure in accordance with ISO 9296(1, 2, 3).
Important: Hearing conservation program (HCP) procedures are required for field service personnel servicing a 5U SAS expansion enclosure.
Table 7. Declared noise emissions for 5U SAS expansion enclosures in accordance with ISO 9296
Model and type Declared A-Weighted Sound Power Level, LWAd (B) Declared A-Weighted Sound Pressure Level, LpAm (dB)
Operating Idling Operating Idling
Fully-configured 5U expansion enclosure (92 drives) 8.5 8.5 85 85
Notes:
  1. Declared level LWAd is the upper-limit A-weighted sound power level. Declared level LpAm is the mean A-weighted sound pressure level measured at the 1-meter bystander positions.
  2. All measurements are made in conformance with ISO 7779 and declared in conformance with ISO 9296.
  3. B and dB are abbreviations for bels and decibels, respectively. 1 B = 10 dB.
Important: Government regulations (such as those prescribed by OSHA or European Community Directives) may govern noise level exposure in the workplace and may apply to you and your server installation. This system is available with an optional acoustical door feature that can help reduce the noise emitted from this system. The actual sound pressure levels in your installation depend upon a variety of factors, including the number of racks in the installation; the size, materials, and configuration of the room where you designate the racks to be installed; the noise levels from other equipment; the room ambient temperature, and employees' location in relation to the equipment. Further, compliance with such government regulations also depends upon a variety of additional factors, including the duration of employees' exposure and whether employees wear hearing protection. IBM® recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.

The noise emission level that is stated is the declared (upper limit) sound power level, in decibels, for a random sample of machines. All measurements are made in accordance with ISO 7779 and reported in conformance with ISO 9296.

Shock and vibration specifications for control enclosures

Table 8 and Table 9 provide the shock and vibration testing results for your control enclosure.

Table 8. Shock testing results
Shock categories Test level Performance
Operational 5 g 10 ms 1/2 Sine <= 25 g 10 ms
Non-operational 30 g 10 ms 1/2 Sine <= 75 g 11 ms
Table 9. Vibration testing results
Vibration categories Test level Performance
Operational 0.21 grms 5-500 Hz Random Throughput loss < = 10% FCAL < = 0.68 grms
Non-operational 1.04 grms 2-200 Hz Random <= 3.12 grms
Shipping 0.3 g 2-200 Hz Sine <= 5 g
Rotational vibration Normal operation performance measurements in enclosure with no external vibration. Throughput loss for all drives of the same type within performance profile.