About DAE2 Disk Enclosures

A latch on the LCC locks it into place to ensure proper connection to the midplane. You can add or replace an LCC while the disk enclosure is powered up.

Disk Modules

Each disk module consists of one disk drive in a carrier. You can add or remove a disk module while the DAE2 is powered up, but should exercise special care when removing modules while they are in use.

Drive modules are extremely sensitive electronic components. Refer to the instructions on Handling FRUs and Replacing or Adding a Disk Module in Chapter 3 whenever you handle a disk module.

Fibre Channel disk modules will not work in an ATA enclosure, and vice versa. You can visually distinguish between module types by their different latch and handle mechanisms. ATA drive modules also include a small printed-circuit adapter board in the back (connector side) of the carrier. Figure 1-7 shows the DAE2 disk modules.

Fibre Channel Disk Module

ATA Disk Module

Carrier

Disk

Carrier

 

Adapter

 

Drive

 

Board

 

 

Latch

 

Latch

 

 

 

 

Disk Drive

Handle

EMC1758

Handle

Figure 1-7Disk Modules

 

Disk Drives

DAE2 disk drives conform to either FC-AL or ATA 6 specifications,

 

and either 1-Gbit and 2-Gbit Fibre Channel or 1.5-Gbit serial ATA

 

interface standards. The disk module slots in the enclosure

 

accommodate 1-inch (2.54 cm) by 3.5-inch (8.75 cm) disk drives.

Drive Carrier

The disk drive carriers are metal and plastic assemblies that provide

 

smooth, reliable contact with the enclosure slot guides and midplane

 

connectors. Each carrier has a handle with a latch and spring clips.

1-8

2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference

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EMC FC, ATA manual Disk Modules, Disk Drives, Drive Carrier

FC, ATA specifications

EMC ATA (Advanced Technology Attachment) and FC (Fibre Channel) are two significant technologies in storage networking that enhance data management and access in enterprise environments.

EMC ATA, often associated with ATA storage devices, offers a cost-effective solution for managing large volumes of data. Shipments of ATA drives have become increasingly popular in the realm of consumer electronics due to their affordability and capacity. EMC utilizes ATA drives in various storage solutions, primarily focusing on performance and reliability. These drives handle particular workloads effectively, making them suitable for environments that require mass data storage, such as digital media and backup solutions.

In terms of key features, EMC ATA solutions provide high capacity, reliability, and cost-effectiveness. They are designed to manage routine data storage tasks with ease. These storage devices utilize interfaces that provide straightforward integration with various computer systems. Additionally, EMC ATA solutions come with error detection features and are generally simple to deploy, which is beneficial for teams seeking efficiency without an extensive learning curve.

On the other hand, Fibre Channel (FC) is a high-speed network technology primarily used for interconnecting storage area networks (SANs). Its robust architecture allows for high-speed data transfer rates, typically ranging from 2 Gbps up to 128 Gbps in contemporary systems. The strengths of FC lie in its ability to provide low-latency communications and its reliability in handling large volumes of data traffic.

Fibre Channel's main characteristics include its ability to support multiple protocols, such as SCSI and IP. This compatibility makes it a flexible choice for various storage solutions, especially in large-scale enterprise environments. Additionally, FC switches and directors enable the creation of complex SAN architectures, which can be both scalable and high-performing.

Furthermore, FC ensures data integrity through features such as error correction and data recovery mechanisms, making it an ideal choice for mission-critical applications. Secure connectivity is also a fundamental aspect of Fibre Channel technology, as it continuously secures data as it flows through the network.

Combining the strengths of EMC ATA's cost-effectiveness in bulk storage and the high-performance capabilities of Fibre Channel, organizations can achieve a balanced storage solution tailored to their operational needs. As data storage demands continue to grow, these technologies remain relevant, supporting both traditional and cutting-edge applications in enterprise IT environments.