Power and Environment Management

The Infoplex secure Data Centres employ phyiscal security and operational procedures to control access, logging, monitoring, and accountability. Regular auditing ensures that high levels of internal controls and security procedures have been implemented and verified.

Infoplex uses physical security within the data centre. Measures taken include the following:

• Controlled access to data centre (using key cards, and other devices)
• Controlled access to servers, storage, and networking devices
• Controlled access to back up media
• Round-the-clock staffing in the data center
• Active monitoring using video cameras
• Logging and monitoring of all activity within the data center

The data centres are powered by two separate power feeds. These come from different sources, external to the building. Each power feed is protected with a UPS (A and B feed). Diesel Generators in an N+1 configuration supply power to our facilities in the event of extended power loss. These are set to auto-start on main power loss to the facility. Large Diesel tanks provide two days worth of running at maximum capacity before requiring re-filling.

Every rack has dual or quad power rails. These provide sufficient capacity in a redundant configuration. A and B power feeds are available to every device. All equipment is dual attached to each feed. Single corded devices are attached to an Automatic Transfer Switch (ATS), which is dual feed attached. Power is completely redundant in an entire feed loss situation, and there are regular tests for both A and B feed loss.

All power aspects are managed and monitored with APC Infrastructure management tools. This allows the NOC to view (either real-time or from logs), power use, potential overload situations and if power is lost to any device. Individual devices can be metered for power usage. This also allows the management system to repower any device, dual or single corded, remotely. Power rails are configured for outlet delayed start-up, this is useful to minimise in-rush current if power feeds to the Data Centre are returned to normal after an outage. Cooling is redundant in the Data Centre. Chilled water is fed from roof chillers. The roof chillers are configured in an N+1 configuration to provide a redundant chilled water system.

In-room cooling is provided by two systems. CRAC units in an N+1 configuration are used. Only one unit runs at a time and they alternate on a scheduled rotation. These units provide sufficient ambient room cooling and humidity control.

To maximise rack density, APC In-Row cooling systems are used. These provide individual cooling as needed to the appropriate rack. The units are vertically installed at the full height of a rack, every second rack. Each unit has temperature sensor to monitor individual equipment. The units dynamically adjust their cooling output to ensure the temperature is a constant value. The In-row’s are also configured in a redundant configuration; a single In-row failure will not have any significant impact on cooling.

As with power aspects the Cooling is monitored and managed remotely. Alerts are configured for abnormal behaviour of equipment and also the units themselves. Under floor water sensors are installed in the event of a water leakage. This is also proactively monitored.