Dell PowerVault MD1220 User Manual download pdf (Page 9)

Getting Started With Your System 7

Technical Specifications

Drives

SAS hard drives Up to 24 2.5-inch SAS hot-swappable hard

drives (3.0 Gbps and 6.0 Gbps)

Enclosure Management Modules (EMMs)

EMMs One or two hot-swappable modules with

temperature sensors and an audio alarm

Connectivity

Configurations Support for either of the following

configurations:

• Unified mode for direct connectivity to

24 hard drives per enclosure.

– Up to four daisy-chained storage

enclosures for a total of 96 hard drives

per controller port and 192 hard drives

per controller.

– Maximum configuration of

two dual port controllers per server for

a total of 384 drives.

– Redundant path connectivity provides

redundant data paths to each hard drive.

Redundant path configuration supports

up to four daisy-chained storage

enclosures for a total of 96 hard drives

per controller and up to 192 hard drives

per server.

• Split mode with dual EMMs provides a

direct connectivity to drives 0 through 11

and a separate direct connectivity to

drives 12 to 23. Split mode configuration

does not support daisy-chaining or

redundant data paths.

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Dell PowerVault MD1220 User Manual Page 9