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Updated:April 15, 2008
Cisco Unified Communications Solutions unify voice, video, data, and mobile applications on fixed and mobile networks enabling easy collaboration every time from any workspace.
® MCS 7835-H2 is a high-availability server platform for Cisco Unified Communications Solutions. An integral part of a complete, scalable architecture for a new generation of high-quality IP voice solutions that run on enterprise data networks, the Cisco MCS 7835-H2 delivers the high performance and availability demanded by today's enterprise networks and represents an innovative solution that is easy to deploy and highly cost-effective. At only 2 rack units (2RUs) high, the Cisco MCS 7835-H2 offers tremendous power in a low-profile chassis that minimizes rack space.
The Cisco MCS 7835-H2 can run any of the following Cisco applications:
• Cisco Unified Application Environment
• Cisco Unified Communications Manager: Up to 2500 Cisco Unified IP Phones per server
• Cisco Emergency Responder: Up to 20,000 Cisco Unified IP Phones
The Cisco MCS 7835-H2 is a robust, highly available server platform designed to support today's Cisco Unified Communications applications. It uses a Smart Array P400 Controller with a 256-MB cache to provide onboard Redundant Array of Independent Disks (RAID) support. The Cisco MCS 7835-H2 occupies only 2RUs of space while providing the features most requested in a high-availability server platform.
High availability on the Cisco MCS 7835-H2 is achieved through the following mechanisms:
• Redundant hot-swap power supplies
• Redundant hot-swap fans
• Hot-swap Serial Attached SCSI (SAS) hard drives configured using RAID 1
System Health LEDs
The Cisco MCS 7835-H2 provides system health LEDs and unit identification lights on the front and back of the server to make pinpointing system problems easier than ever. When an internal component fails, this indication is made on an internal component LED (amber) and on the front panel of the Cisco MCS 7835-H2. If the item is serviceable without removing the server hood, as in the case of a redundant power supply, the external health LED illuminates. If the item is serviceable by removing the hood, as in the case of a fan failure, the internal health LED illuminates. If no failures have occurred, the system health LEDs are green. If a failure has occurred but a redundant feature has enabled the system to continue running, the LED is amber. If the failure is critical and has caused the system to shut down, the LED is red.
Integrated Lights Out 2
The Integrated Lights Out (iLO) 2 Standard and Advanced are included on this server. Combining essential management functions and diagnostics with basic lights-out functions as standard components of the server, iLO 2 is available at no charge. The iLO 2 standard provides fundamental server control and monitoring by integrating essential lights-out technology directly into the Cisco MCS 7835-H2 server architecture.
• Essential lights-out features include remote power control, text-based console, logs, status, and alert forwarding.
• The easy-to-use, dedicated lights-out LAN port is accessible through a browser interface.
• The iLO 2 standard saves a valuable peripheral-component-interconnect (PCI) slot for additional functions and reduces installation and setup time.
• The iLO 2 standard eliminates the need for an external power adapter or any other internal or external cables.
• The iLO 2 standard provides a rich suite of security features, including Secure Sockets Layer (SSL).
• The iLO 2 standard provides a scalable solution by allowing group administration of iLO processors.
DAT Tape Support
The Cisco MCS 7835-H2 can support an optional 36/72-GB universal-serial-bus (USB) external Digital Audio Tape (DAT) drive or an optional USB rack-mount DAT drive. This tape drive connects through one of the 4 USB 2.0 ports provided by the Cisco MCS-7825-H2 server. The external DAT drive is orderable using part number DAT-USB-EXT-72=, and the rack-mounted 36/72-GB DAT drive is orderable using part number DAT-USB-RM-72=.
Tables 1 and 2 list the configurations of the Cisco MCS 7835-H2.
Table 13. Ordering Information for Server Spare Parts
Spare Part Number
Spare 1024-MB SDRAM DIMM for Cisco MCS 7835-H2
Spare 72-GB SAS drive for Cisco MCS 7835-H2
Spare 146-GB SAS drive for Cisco MCS 7835-H2
Spare 800W power supply for Cisco MCS 7835-H2
Spare fan for Cisco MCS 7835-H2
Replacement Part Numbers
With the introduction of the new configurations using 146-GB disks in place of 72-GB disks, the orderability of the old configuration was terminated. Table 14 provides the replacement part numbers for those products that are no longer orderable.
Cisco Unified Communications Services allows you to accelerate cost savings and productivity gains associated with deploying a secure, resilient Cisco Unified Communications solution. Delivered by Cisco and our certified partners, our portfolio of services is based on proven methodologies for unifying voice, video, data, and mobile applications on fixed and mobile networks. Our unique lifecycle approach to services enhances your technology experience to accelerate true business advantage.