RAID Controller Modules

The RAID controller modules provide high-performance, advanced virtual disk configuration, and fault- tolerant disk subsystem management. Each RAID controller module contains 512 MB of cache that is mirrored with the other controller's cache for high availability and protected by a battery for up to

72 hours.

Each RAID controller module provides data path and enclosure management functions for your enclosure, including:

•Monitoring and controlling enclosure environment elements (temperature, fans, power supplies, and enclosure LEDs)

•Controlling access to the physical disks

•Communicating enclosure attributes and states to the host server

NOTE: Two RAID controller modules must be installed in the enclosure; a configuration with fewer than two RAID controller modules installed is not supported.

Depending on which model you choose, the RAID controller module has either single or dual ports for host access. Various configurations can be utilized to connect the storage enclosure to hosts, depending on specific redundancy needs. For example:

•Single-port controller - Both RAID controller modules contain a single SAS host port. With a single- port model, you can connect either:

–A single host with redundant data paths to each RAID controller module

–Two hosts with a single, nonredundant data path to one RAID controller module

•Dual-port controller - Both RAID controller modules contain two SAS host ports. A dual-port model can connect either:

–One or two hosts with redundant data paths to each RAID controller module

–Up to four hosts with a single, nonredundant data path between each host to one RAID controller module

For detailed information on cabling, see "Cabling Your RAID Enclosure" on page 21.

RAID Controller Module Connectors and Features

Figure 1-5 shows a single RAID controller module as it appears from the rear of the enclosure. RAID controller module connectors and components shown include:

•Up to two SAS In port connectors (second SAS In port is optional)

•Ethernet connector

NOTE: The RAID controller module network configuration can be assigned using a DHCP server (the default setting). If a DHCP server is not available (time-out is 10 seconds) then the RAID controller modules uses the static IP addresses of 192.168.128.101 for controller 0 and 192.168.128.102 for controller 1.

•Nine LEDs (three SAS link, two Ethernet link/speed, Battery Fault, Cache Active, Controller Fault, and Controller Power)

About Your System

MD3000 specifications

The Dell MD3000 is a renowned storage area network (SAN) solution recognized for its flexibility, scalability, and high performance. Designed to meet the demands of small to medium-sized businesses (SMBs) and enterprise environments, the MD3000 offers a plethora of features that enhance data management and storage capabilities.

One of the standout features of the MD3000 is its modular design. This allows users to start with a basic configuration and expand their storage capacity as their needs grow. The system can support up to 30 drives, including both SATA and SAS drives, giving users the ability to optimize cost and performance based on their specific requirements. With support for a diverse range of drive types, the MD3000 ensures that businesses can implement a storage solution that aligns perfectly with their performance and budgetary needs.

The MD3000 leverages advanced technologies to deliver exceptional performance and reliability. It is equipped with Intelligent Disk Pools that optimize the allocation of data across drives, ensuring improved access speeds and overall system efficiency. This dynamic management of data not only enhances performance but also extends the lifespan of the storage devices.

Data protection is another critical component of the MD3000. The system features various RAID configurations, allowing users to choose the level of redundancy that suits their operational requirements. Additionally, robust snapshot capabilities help businesses create point-in-time copies of their data, enabling quick recovery in case of data loss or corruption.

Connectivity options are abundant with the MD3000. It supports both iSCSI and Fibre Channel, providing users the flexibility to integrate it seamlessly into existing network infrastructures. This adaptability makes it an attractive option for organizations looking to modernize their storage systems without overhauling their entire architecture.

Furthermore, the MD3000 is equipped with a user-friendly management interface. The GUI enables quick provisioning and monitoring of storage resources while providing insightful analytics and alerts, allowing IT teams to maintain optimal performance with ease.

In summary, the Dell MD3000 is a highly versatile and efficient storage solution that meets diverse organizational needs. Its scalable architecture, advanced features, and strong support for data protection and management make it an ideal choice for businesses aiming to enhance their storage capabilities while ensuring reliability and performance. Whether for virtualization, database management, or general storage needs, the MD3000 stands out as an excellent investment in enterprise storage technology.

Dell MD3000 owner manual RAID Controller Modules

Models: MD3000