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| Carrier
Class Data Centres |
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In partnership
with a Certified Microsoft Facility – RebelNetworks utilized the data center.
Located in San Jose, Silicon Valley, Market Post Tower is one of only
a few tier-4 datacenters in the US, as classified by the Uptime Institute,
the world's leading authority on datacenter uptime. The tier-4 category
is for facilities "fundamentally immune to planned and unplanned
downtime". Infrastructure

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Tier-4 datacenter.
Although official ratings are from tier 1 (lowest) up to tier
4 (highest), many smaller hosting companies confuse customers
by claiming 'tier-1' facilities – in an attempt to hide
that they are in small, local datacenters, or outdated 1990s
facilities. |

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Environmental control units that
give a 100% SLA-guaranteed temperature and humidity within a
certain range. |

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The most advanced pre-action fire-suppression
systems available. |
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Raised floors and zone-4 certified
for earthquakes. |
Security

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All premises are closely
monitored and guarded, 24x7x365, with sophisticated pan/tilt
CCTV covering every part of the facility and security guards
posted at all entrances. |

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Access to servers is restricted
to a limited number of authorized engineers. |

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Security is strictly enforced using
the very latest technology, including man-trap technology between
lobby and datacenter, motion sensors and controlled ID key-cards.
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Security guards stationed at every
entrance to the site. |
Power

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Dual-feed 12KV power
supply from PG&E. |

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Designed for N+1 redundancy with
redundant power feeds. |

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Powerware UPS modules and PDUs
with static switches on front end. |
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6 emergency redundant back-up diesel
generators. |
Connectivity

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Market Post Tower is
home to Verizon's MAE-West facility. |

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The West Coast's most important
communications hub, with carriers including AT&T, Global
Crossing, Level 3 Communications, MCI/Verizon, Singapore Telecom,
Sprint. |

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Failover arrangements to two additional
Intermedia California facilities ensure constant uptime. |
Cooling

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Fully-redundant, roof-mounted,
1500-ton, Liebert system with common ducting, plus security
via the elimination of water-filled piping from the datacenter
space. |
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Roof-mounted Carrier air-cooled
chillers and air handlers. |

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CRAC units in the electrical and
UPS rooms. |

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All servers are 64-bit Dell PowerEdge
servers, with multiple multi-core processors. |

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Adheres to Microsoft best practices
for Exchange deployments. |

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Passive-active cluster server configuration
for ultimate resilience, plus seamless failover when a cluster
node is unavailable or taken offline for maintenance. |
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Redundant and load-balanced Exchange
servers increase reliability. |
Storage

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New EMC SAN-based storage
with disk clusters in an advanced RAID array for seamless failover.
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Full tape back-ups ensure there's
no single point of failure anywhere within the storage system. |
Network

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Diverse network entry
points which manage traffic flow to the Internet. |
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Failover links to second and third
California locations for resilience. |

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Traffic managed by Cisco routers
and switches, with HP rack distribution switches. |

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Netscreen 500 firewall protects
the Exchange environment. |
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All ports closed except for those
that are essential to Exchange traffic, with 100% of incoming
traffic monitored by anti-virus and anti-spam technology. |
Monitoring

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Entire Exchange environment
and all servers monitored 24x7x365 by our large technical team.
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State-of-the-art monitoring system
to analyze and preempt issues, both actual and potential.
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Full range of metrics monitored,
including CPU, memory and disk space utilization, the size of
the mail queues, the status of Outlook Web Access (OWA), different
Exchange-related ports and RPC latenc |
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