Dell PowerVault MD3200 Series Manuale d'uso - Pagina 10

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About the Storage Array Connections

The storage array is connected to a host using two hot-swappable RAID

controller modules. The RAID controller modules are identified as RAID

controller module 0 and RAID controller module 1. For more information, see

the Getting Started Guide.

Each RAID controller module has four SAS In port connectors that provide

SAS connections to the host or node. Each RAID controller module also

contains an Ethernet management port and a SAS Out port connector. The

Ethernet management port allows you to install a dedicated management

station (server or stand-alone system). The SAS Out port allows you to

connect the storage array to optional expansion enclosures for additional

storage capacity. For more information, see the Getting Started Guide.

Each PowerVault MD3200 Series storage array can be expanded to a

maximum of 96 physical disks through a maximum of seven PowerVault

MD1200 Series expansion enclosures.

NOTE:

When you connect a host server to a storage array SAS In port connector,

any Out port connector of the server's host bus adapter (HBA) can be used.

You can cable the storage array to host servers with:

•

Single path data configuration—A single path configuration allows you to

connect a maximum of eight hosts. This is a non-redundant configuration.

•

Dual path data configuration—A dual path configuration allows you to

connect a maximum of four hosts.

You choose the data configuration based on:

•

Number of hosts required

•

Level of data redundancy required

Non-redundant configurations are configurations that provide only a single

data path from a host to the storage array. This type of configuration is only

recommended for non-critical data storage. Path failure from a failed or

removed cable, a failed HBA, or a failed or removed RAID controller module

results in loss of host access to storage on the storage array.

Hardware Installation