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Dell M1000E owner manual CMC Fail-Safe Mode, Condition Description CMC removal, CMC network cable

Models: M1000E

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–Provides comprehensive enclosure inventory and status/error reporting.

•CMC fail-safe mode. For more information, see CMC Fail-Safe Mode.

•The CMC provides a mechanism for centralized configuration of the following:

–The enclosure’s network and security settings

–Power redundancy and power ceiling settings

–I/O switches and iDRAC network settings

–First boot device on the server blades

–Checks I/O fabric consistency between the I/O modules and blades and disables components if necessary to protect the system hardware

–User access security

NOTE: It is recommended that you isolate chassis management from the data network. Dell cannot support or guarantee uptime of a chassis that is improperly integrated into your environment. Due to the potential of traffic on the data network, the management interfaces on the internal management network can be saturated by traffic intended for servers. This results in CMC and iDRAC communication delays. These delays may cause unpredictable chassis behavior, such as CMC displaying iDRAC as offline even when it is up and running, which in turn causes other unwanted behavior. If physically isolating the management network is impractical, the other option is to separate CMC and iDRAC traffic to a separate VLAN. The CMC and individual iDRAC network interfaces can be configured to use a VLAN with the racadm setniccfg command. For more information, see the Dell Chassis Management Controller Administrator Reference Guide at support.dell.com/manuals.

CMC Fail-Safe Mode

Similar to the failover protection offered by the redundant CMC, the M1000e enclosure enables the fail-safe mode to protect the blades and I/O modules from failures. The fail-safe mode is enabled when no CMC is in control of the chassis. During the CMC failover period or during a single CMC management loss:

•you cannot turn on newly installed blades

•existing blades cannot be accessed remotely

•chassis cooling fans run at 100% for thermal protection of the components

•blade performance reduces to limit power consumption until management of the CMC is restored

The following are some of the conditions that can result in CMC management loss:

Condition

Description

CMC removal

Chassis management resumes after replacing CMC, or after failover to standby CMC.

CMC network cable

Chassis management resumes after the chassis fails over to the standby CMC. Network

removal or network

failover is only enabled in redundant CMC mode.

connection loss

 

CMC reset

Chassis management resumes after the CMC reboots or chassis fails over to the standby CMC.

CMC failover

Chassis management resumes after the chassis fails over to the standby CMC.

command issued

 

CMC firmware update Chassis management resumes after the CMC reboots or chassis fails over to the standby CMC. It is recommended that you update the standby CMC first so that there is only one failover event. For more information on updating the CMC firmware, see the CMC User's Guide at

support.dell.com/manuals.

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Dell M1000E owner manual CMC Fail-Safe Mode, Condition Description CMC removal, CMC network cable
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M1000E specifications

The Dell M1000E blade enclosure is a robust and versatile platform designed to optimize data center efficiency and streamline server management. A fundamental component of Dell's PowerEdge series, the M1000E is engineered to house multiple server blades in a compact, modular chassis, enabling organizations to conserve space and reduce power consumption while enhancing performance.

One of the main features of the Dell M1000E is its ability to accommodate up to 16 half-height server blades or 8 full-height server blades. This flexibility allows for a diverse range of configurations tailored to specific workloads, whether for virtualization, database management, or application hosting. The chassis provides shared power supplies and cooling, further contributing to the enclosure's efficient operation.

In terms of connectivity, the M1000E includes integrated high-speed networking capabilities. It can support multiple generations of networking technologies, ranging from Gigabit Ethernet to 10 Gigabit Ethernet, and offers options for Fibre Channel and InfiniBand connections. This extensive range of networking options ensures that organizations can integrate the M1000E into existing infrastructures seamlessly.

The Dell M1000E also utilizes advanced management tools to simplify administration and monitoring. One of the standout features is the Dell OpenManage suite, which provides a comprehensive set of tools for hardware management and system updates. Users gain insights into system health, performance, and power usage, enabling proactive maintenance and optimization of resources.

The enclosure is designed with scalability in mind. As businesses grow, the M1000E can be expanded easily by adding more blades without the need for significant reconfiguration. This scalability ensures that IT departments can respond rapidly to changing demands, ensuring that resources align with organizational requirements.

From a security standpoint, the M1000E provides multiple layers of protection, including secure access controls and configurable management interfaces. This helps safeguard sensitive information and ensures compliance with stringent data protection regulations.

Overall, the Dell M1000E blade enclosure represents a compelling solution for modern data centers, merging performance, efficiency, and scalability into a single chassis designed to meet the demands of today’s enterprise environments. Its advanced technologies and features make it a valuable asset for organizations looking to enhance their IT infrastructure.