Before you install a system, your physical environment must meet certain requirements.
These requirements include verifying that adequate space is available and 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.
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 following guidelines:
The rack design must support the total weight of the installed enclosures. 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. Observer
the electrical power consumption rating that is shown on the nameplate.
The electrical distribution system must provide a reliable ground for each enclosure in the
rack.
Power requirements for each power supply
To aid in power and cooling requirements planning, Table 1 lists the rating of each power supply unit
(PSU) by enclosure. Each enclosure contains two AC PSUs for redundancy. The power rating values
represent the total power that is drawn by both PSUs. 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.
Table 1. Power specifications per power supply
Model and type
PSU
Input power requirements
Maximum input current
Maximum power output
Caloric value (BTU/hr)
FlashSystem 5000
control enclosures
AC 800 W
Single phase AC: 100 V to 127 V or 200 V to 240 V
Frequency: 50 - 60
Hz
100 V to 127 V 9 A
200 V to 240 V 4.5 A
800 W
2730
FlashSystem 5000
control enclosures
DC 800 W (optional)
-48 V to -60 V DC
-48 V to -60 V 25 A
800 W
2730
2072-92G / 2072-F92 / 4680-92H or 2072-E92 Expansion
enclosure with 92, 3.5-inch form factor SAS drive slots
2400 W (2)
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 power distribution
unit)
2400 W
8189
Note: One or more C19 power distribution units (PDU) are needed in the rack to connect power to the
power supplies of the 5U expansion enclosure.
The measurements that are shown in the following tables 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.
To conduct your own testing to determine specific measurements for your environment, you
can use the IBM Storage Energy Estimator.
Table 2 shows examples of the power ratings
of FlashSystem 5000 systems with different
drive configurations.
Table 2. Power rating examples for control enclosures and drives
Control Enclosure
Drive Information
Average Watts
Type
Quantity
Block Size
FlashSystem 5015
800 GB Flash
16
4 K
230
256 K
248
FlashSystem 5035 and FlashSystem 5045
200 GB
24
4 K
273
256 K
299
900 GB SAS 10 KPM 2.5-inch
24
256 K
350
Table 3 shows examples of the power
ratings of FlashSystem 5000 expansion
enclosures with different drive configurations.
Table 3. Power
rating examples for 2U expansion enclosures
Drive quantity and type
Average power consumption
24 SFF
NL
193 W
12 LFF Flash
150 W - 180 W
12 LFF NL
166 W
Workload: 70/30 random cache miss; 4 K block size.
Table 4 shows examples of the power
ratings of 2072-92G / 2072-F92 / 4680-92H
expansion enclosures with different drive configurations. The same power ratings apply to 2072-E92
expansion enclosures.
Table 4. Power consumption examples per 5U expansion enclosure
Model and type
Configuration
Total power consumption
Caloric value (BTU/hr)
2072-92G / 2072-F92 / 4680-92H
1 enclosure with 92 10 TB nearline SAS drives
848 W
2893
2072-92G / 2072-F92 / 4680-92H
1 enclosure with 92 15 TB tier 1 flash drives
748 W
2552
Temperature requirements
Ensure that the temperature and humidity in the environment falls within the ranges that are
shown in Table 5. System airflow is from the front to
the rear of each enclosure:
Airflow passes between drive carriers and through each enclosure.
Airflow for the upper 4U of the 5U expansion 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 expansion enclosure is driven through the power supplies
through 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.
Table 5. Temperature requirements
Environment
Ambient temperature
Altitude
Relative humidity
Maximum dew point
Operating
10° C to 35° C (50° F to 95° F)
0 - 3050 m (0 - 10,006 ft)
20% to 80% non-condensing
21°C (69° F)
Non-operating
-10° C to 50° C (14° F to 125° F)
0 - 3050 m (0 - 10,006 ft)
8% to 80% non-condensing
27°C (80° F)
Storage
1° C to 60° C (33° F to 140° F)
No limit
5% to 80% non-condensing
29°C (84° F)
Shipping
-40° C to 60° C (-40° F to 140° F)
No limit
5% to 100% non-condensing
29°C (84° F)
Physical characteristics
Table 6 summarizes the
dimension and weight information for the FlashSystem 5000 control and expansion
enclosures. Ensure that the rack has enough available space to support each type of enclosure.
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:2072-92G / 2072-F92 / 4680-92H
or 2072-E92 (5U)
expansion enclosure models need 968 mm from the rack front post to the back of the cable management
arm (CMA). There are racks that will 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 - 70 mm from the back of the enclosure.
Figure 1 shows the rack space
requirements for the 5U models.Figure 1. Rack space requirements for the 5U expansion enclosure
Enclosure clearances
Ensure that additional clearance, as shown in Table 7, is available around each of the control and
expansion enclosures.
Table 7. Enclosure clearances
Location
Space requirement
Reason
Left and right sides
50 mm (2 in.)
Cooling air flow
Back
Minimum: 100 mm (4 in.). This is not needed for 5U models.
Cable exit
Supported drives for enclosures
FlashSystem 5000
control enclosures and expansion enclosures support drives of different types and storage
capacities. For a summary of the drives and other
supported parts, see System replaceable units.
Acoustical noise emissions
Table 8 provides the acoustical specifications
for FlashSystem 5000 systems. The noise
emission level that is stated is the declared (upper limit) sound power level, in decibels, for a
random sample of enclosures. All measurements are made in accordance with ISO 7779 and reported in
conformance with ISO 9296.
Table 8. Acoustical noise emissions
Enclosure type
Drive configuration
Acoustical output per enclosure
Idling
Operating
Control enclosure
12 LFF drives
6.2 bels
6.1 bels
24 SFF drives
6.2 bels
6.1 bels
Expansion enclosure (2U)
12 LFF drives
6.1 bels
6.1 bels
24 SFF drives
6.2 bels
6.2 bels
Table 9 provides the acoustical
specifications for the 2072-92G / 2072-F92 / 4680-92H and 2072-E92
SAS expansion enclosures in accordance with ISO 9296(1,2,3).
Important: Hearing conservation program (HCP) procedures are required for field service
personnel servicing a 2072-92G / 2072-F92 / 4680-92H
or 2072-E92 SAS
expansion enclosure.
Table 9. Declared noise emissions
for 5U SAS expansion enclosures in accordance with ISO 9296
Declared level LWAd is the upper-limit A-weighted sound power level. Declared level
LpAm is the mean A-weighted sound pressure level that is measured at the 1-meter
bystander positions.
All measurements are made in conformance with ISO 7779 and declared in conformance with ISO
9296.
B and dB are abbreviations for bels and decibels. 1 B = 10 dB.
Important: Government regulations (such as those prescribed by OSHA or European
Community Directives) might govern noise level exposure in the workplace and might apply to you and
your server installation. This system is available with an optional acoustical door feature that can
help reduce the noise that is 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.
Shock and vibration specifications
Table 10 provides the shock testing results for each FlashSystem 5000 system.
Table 10. Shock testing specifications
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 11 provides the vibration testing results for
FlashSystem 5000 systems.
Table 11. Vibration testing specifications
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.
Support rail specifications
Table 12 provides the supported depth of the rack for
each FlashSystem 5000 system.
