Cisco Cisco 7815I Media Convergence Server Hoja De Datos
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High Availability
High availability on the Cisco MCS 7835-I1 Unified CallManager Appliance is achieved through the following mechanisms:
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Redundant hot-swap 625W power supplies
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Hot-swap SCSI hard drives configured using RAID 1
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Redundant hot-swap fans
Memory
The Cisco MCS 7835-I1 Unified CallManager Appliance supports up to 16 GB of DDR2 memory. The increased processor performance coupled
with DDR2 memory allows for quick, efficient retrieval and processing of information. DDR memory executes twice the number of operations per
cycle than traditional synchronous dynamic RAM (SDRAM) memory, effectively doubling the data exchange rate between memory and processors.
Variable-Speed Fan Support
The Cisco MCS 7835-I1 includes variable-speed fans to reduce operating noise. Through the use of temperature sensors within the server, the speed
of the fans is adjusted to maintain the proper cooling, reducing the noise generated by the fans by operating them only when required and at a speed
based upon the cooling requirements.
Advanced Connectivity Technology
The Cisco MCS 7835-I1 Unified CallManager Appliance supports IBM’s new NetBAY Advanced Connectivity Technology products that help
reduce Keyboard/Video/Mouse (KVM) costs by linking administrators’ chain systems with Category 5 cable. In addition to reducing overall costs,
Advanced Connectivity Technology reduces bulk cable clutter, making servers accessible and serviceable in the rack.
Serviceability
Light Path Diagnostics
The Cisco MCS 7835-I1 is equipped with Light Path Diagnostics, providing a central information LED panel (visible without removing the cover)
and individual LED lights throughout the system on items such as memory dual in-line memory modules (DIMMs), peripheral-component-
interconnect (PCI) slots, power supplies, and CPUs. It can quickly view system status, and service personnel can identify the specific failing
component, helping reduce downtime and service costs. Thus the Cisco MCS 7835-I1 provides increased availability, because nontechnical
personnel can report error conditions without removing the top cover and exposing vital components to further risk. If the system error LED on the
front of the server is on, one or more LEDs inside the server or on the power supply will be on. These LEDs help identify and locate problems with
some server components. By following the path of lights, users can quickly identify the type of system error that occurred. The Cisco MCS 7835-I1
is designed so that any LEDs that are illuminated remain illuminated when the server shuts down as long as the AC power source is good and the
power supply can provide +5 VDC to the server.
Light Path Diagnostics provide indication of failures for the following conditions:
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One or both power supplies consuming power higher than maximum rating
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Power supply 1 failure
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Power supply 2 failure
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Error on voltage regulator module
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One or both processors failed
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Hardware configuration error
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Memory error
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Nonmaskable interrupt