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System Overview : Dell PowerVault 220S and 221S Systems Service Manual
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System Overview
Dell™ PowerVault™ 220S and 221S Systems Service Manual
Overview
System Features
Service Features
Overview
Dell™ PowerVault™ 220S and 221S systems are reliable, flexible, external SCSI expansion enclosures designed to support multiple Dell storage environments and RAID configurations.
Each system offers maximized drive-spindle count, hot-plug hard drives, optional redundant power supplies, redundant cooling modules, rackmount capability, systems management
features, and a modular design for easy upgrades. Most major components, including hard drives and power supply/cooling modules are hot-pluggable and can be removed and replaced
easily. The enclosure management module (EMM), split-bus module, and SCSI terminator card are "warm-pluggable." This means they can be removed or inserted while the power is
on, but all I/O activity has ceased.
This section provides an overview of system features and components, and technical specifications.
System Features
Your system offers the following features:
Tower or rack versions (3 units [U] [19 inches]).
Capacity for fourteen 1-inch hot-plug SCSI hard drives. (See
Universal hard-drive carriers.
Support for a variety of RAID controller cards, host-integrated RAID controllers, and host bus adapter (HBA) cards. (See your system's readme file for supported RAID controllers
and HBA cards.)
Hot-plug power supply and cooling modules that are combined for easy serviceability. The cooling modules are redundant. Power supply modules can be redundant or
nonredundant.
Optional redundant enclosure management modules (EMM).
Support for the following direct-attach configurations:
High-availability redundant EMM configuration in joined-bus mode (with a terminator card for nonredundant configurations).
High-availability cluster configurations (with redundant EMMs) that allow multiple-server access to the same enclosure.
Split-bus module (with redundant EMMs) to operate the enclosure using two separate buses.
Enclosure management through in-band SCSI enclosure services (SES) for power supplies and cooling modules and SCSI-accessed fault-tolerant enclosures (SAFTE).
Storage management through Dell OpenManage™ Array Manager.
Four sensors for monitoring ambient temperatures and shutdown capability when temperatures reach a critical level.
Audible warning for critical component failure.
Supported for all new Dell servers. (See your system's readme file for supported systems.)
file:///C|/Users/rishi_sood/Desktop/220s/en/sm/intro.htm[3/7/2013 12:09:13 PM]
Components and Indicators
Technical Specifications
"Technical
Specifications" or your system's readme file for supported hard-drive speeds and capacities.)