Power Specifications

SnapStream servers are equipped with dual hot-swap power supplies that are both redundant, and load-balancing. A single unit may be replaced without a system power-down. The servers also support auto detection of 100-240V and 50-60Hz power.


Below are the server configurations and their respective power consumption statistics.


Storage Level
Chassis Size
Total Number of Drives
Power Supply Used
Idle Draw Watts
Idle Draw Amps
Max Draw Watts
Max Draw Amps
Power Off Draw 
3 TB
3U
7
Dual 800 Watts
190
1.6
240
2.0
30 W
6 TB
3U
11
Dual 800 Watts
250
2.1
300
2.5
30 W
9 TB
3U
16
Dual 800 Watts
325
2.7
375
3.1
30 W
12 TB
4U
20
Dual 900 Watts
385
3.2
435
3.6
30 W
15 TB
4U
24
Dual 900 Watts
445
3.7
495
4.1
30 W


Connecting Power - Best Practices


Minimal Configuration


In this configuration. each of the system's power supply units are plugged into a a single ‘uninterrupted power supply’ (UPS).  This configuration provides protection against a single system power supply unit failure and momentary power outages or failures. This configuration is vulnerable against extended power failures due to the single power source. This configuration is also vulnerable to UPS failures as both power supply units connect to the same UPS.


Better Configuration

In this configuration, each of the system's power supply units are plugged into a separate UPS.  This configuration provides for protection against single system power supply unit failure. The system is also better protected against power outages since the amount of backup power is effectively doubled. The vulnerability against a single UPS failure has been eliminated as well.


Best Configuration

In this configuration, each of the system's power supply units are plugged into its own UPS and each UPS is powered by separate and independent circuits.  This provides the best protection against a single power supply failure, single UPS failure, and a single or double power circuit failures.


UPS VA Recommendations

When deciding on UPS hardware, it is important to choose a solution with the appropriate VA rating.  This rating allows you to calculate the prospective uptime of a server in the event of a power failure, based on the power draw of the system.  Listed below are some approximate times for our servers based on UPS hardware with standard VA ratings.



The following calculations are a conservative estimate based on maximum power draw with a full CPU load. 


Single UPS Configuration

Storage Level
Idle Draw Watts
Max Draw Watts
500VA
800VA
900VA
1200VA
1500VA
3 TB
190
240
3 min
15 min
15 min
15 min
20 min
6 TB
250
300
3 min 
15 min
15 min
15 min
20 min
9 TB
325
375
N/A
10 min
10 min
10 min
13 min
12 TB
385
435
N/A
6 min
6 min
6 min
9 min
15 TB
445
495
N/A
6 min
6 min
6 min
9 min


Dual UPS Configuration

Storage Level
Idle Draw Watts
Max Draw Watts
500VA
800VA
900VA
1200VA
1500VA
3 TB
190
240
9 min
25 min
27 min
33 min
38 min
6 TB
250
300
9 min 
25 min
27 min
33 min
38 min
9 TB
325
375
9 min
25 min
27 min
33 min
38 min
12 TB
385
435
3 min
15 min
15 min
22 min
24 min
15 TB
445
495
3 min
15 min
15 min
22 min
24 min

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