each enclosure management module (EMM) in a split-mode configuration. See Figure 2-4 for a cabling diagram of a split-mode configuration.

Table 2-1. Split-Mode Configuration

Enclosure

EMM 0

EMM 1

 

 

 

Dell PowerVault MD1200

Drives 6 to 11

Drives 0 to 5

Dell PowerVault MD1220

Drives 12 to 23

Drives 0 to 11

 

 

 

NOTE: Clustering is not supported on PowerVault MD1200 and

PowerVault M1220 enclosures.

The operating mode is selected using the enclosure mode switch on the front panel of the enclosure.

NOTE: The enclosure mode switch must be set to either unified mode or split mode before the enclosure is turned on. Changing the configuration mode after turning on the enclosure has no effect on the enclosure configuration until the enclosure

is rebooted.

Connecting the Enclosure

1Ensure that the latest version of Dell OpenManage™ Server Administrator is installed. For installation instructions and supported operating systems, see the Server Administrator documentation.

NOTE: The minimum version of Server Administrator supported on your enclosure is 6.2.

2Turn off the host system and all attached devices.

3Connect the SAS cable(s) to the EMM SAS connector on the storage enclosure and to the RAID controller on the host system. Push the cable into the connector until it clicks into place. See Figure 2-1.

NOTE: Connectors on both ends of the SAS cable are universally keyed. You can connect either end of the cable to the EMM or the RAID controller.

NOTE: To remove the SAS cable, you must pull the pull-tab to release the cable from the connector on the EMM and the host system. See Figure 2-1.

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Operating Your Storage Enclosure

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Dell MD1200, MD1220 manual Connecting the Enclosure

MD1200, MD1220 specifications

The Dell MD1200 and MD1220 are robust direct-attached storage solutions designed to enhance data management and storage capabilities in enterprise environments. Both systems are characterized by their scalability, performance, and ease of integration, making them ideal for businesses with evolving storage requirements.

The Dell MD1200 supports up to 12 drives, while the MD1220 scales up to 24 drives, providing ample capacity for various workloads. These storage arrays are equipped with a mix of SAS and SATA drive options, allowing organizations to balance performance and cost based on their unique needs. The flexibility in drive choice facilitates effective data tiering; users can deploy high-speed SSDs for critical applications alongside cost-effective HDDs for archival data.

One of the key features of both models is their adherence to the latest SAS technology standards. The MD1200 and MD1220 utilize Serial Attached SCSI (SAS) 6Gb/s interface, ensuring high-speed data transfer rates and low latency. This technology is integral for businesses dealing with data-intensive applications such as databases, virtualization, and backup operations.

The systems also come equipped with advanced data management features. They support RAID configurations, including RAID 0, 1, 5, 6, and 10, enabling users to choose the right level of redundancy and performance. RAID ensures data integrity and availability, which is crucial for mission-critical applications.

Additionally, the MD1200 and MD1220 support hot-swappable drives, allowing users to replace malfunctioning units without shutting down the system. This capability minimizes downtime and boosts overall productivity. Coupled with built-in battery backup units, these storage solutions provide a layer of data protection in case of power failures.

Both models feature a user-friendly management interface, which simplifies the deployment and monitoring of storage resources. This web-based console offers a centralized view, enabling IT administrators to manage alerts, configure settings, and analyze performance metrics easily.

In conclusion, the Dell MD1200 and MD1220 storage systems stand out in the market due to their blend of scalability, performance, and user-centric features. They are designed to meet the demanding storage needs of modern enterprises, ensuring reliable data management and operational efficiency. With their flexibility and advanced technology, both models are solid choices for businesses seeking to optimize their storage infrastructure.