Dell PowerVault MD3800i User Manual download pdf (Page 13)

Controller Modules

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 4GB or 8GB of mirrored

cache for high availability and a battery-powered cache offload mechanism.

NOTE: The 8GB mirrored cache is an optional feature.

RAID controller modules provide the following data path and enclosure management functions:

• 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 and management station

Each RAID controller module has multiple iSCSI IN ports for host access. The ports provide redundant

host connections and support a high availability storage environment. Various configurations can be

utilized, in both single controller (simplex) and dual controller (duplex) modes, to connect the storage

enclosure to hosts depending on specific redundancy needs.

For information on cabling, see the MD3800i and MD3820i Series Storage Arrays Deployment Guide, at

dell.com/powervaultmanuals.

RAID Controller Module Connectors And Features

Figure 7. MD3800i and MD3820i Series iSCSI RAID Controller Module

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 46 47

No comments

Dell PowerVault MD3800i User Manual Page 13