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PowerVault MD3000 Direct Attached Storage

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Modular Disk Array

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High performance, direct attached storage for high data availability

  • Supports up to four PowerEdge servers
  • Ideal for 2 node cluster configurations
  • Up to 45 disk drives and 90TB of capacity
  • Supports both SAS and SATA drives

PowerVault MD3000 Modular Disk Storage Array
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Features

Features

Suggested Product

Connectivity

  • Support for either up to 2 Highly Available (redundant data paths) hosts or up to 4 non-HA (single data path) hosts using SAS 5/E HBA

Operating System

  • Microsoft Windows Server 2008
    Microsoft Windows 2003 32-bit Standard Server and Enterprise Edition
    Microsoft Windows 2003 64-bit Edition
    Microsoft Windows 2000 Standard and Advanced Server
    Red Hat Linux
    SUSE Linux Enterprise Server
    Microsoft Windows 2003 32-bit 2 node clusters
    Microsoft Windows Storage Server 2003

    Click here for a detailed list of supported operating systems

Chassis

  • PowerVault MD3000 Control Module

    Height: 13.11 cm (5.16 inches)

    Width: 44.63 cm (17.57 inches)

    Depth: 48.01 cm (18.9 inches)

    Weight: 35.37 kg (78 lb) (maximum configuration)

    PowerVault MD1000 expansion module

    Height: 13.11 cm (5.16 inches)

    Width: 44.63 cm (17.57 inches)

    Depth: 48.01 cm (18.9 inches)

    Weight: 35.37 kg (78 lb) (maximum configuration)

Power

  • PowerVault MD3000 Control Module

    Wattage: 478 W maximum continuous; 550 W peak
    Maximum Heat dissipation: 200 W
    Input Voltage Range: 100-240 V rated (actual 90-264 V)
    Frequency Range: 47-63 Hz
    Maximum Input Current at Rated Power: 7.93 A at 90 V, 3.96 A at 180 V
    PowerVault MD1000 expansion module
    Wattage: 488 W maximum continuous; 550 W peak
    Heat dissipation: 200 W
    Voltage: 100-240 V rated (actual 90-264 V)
    Frequency: 47-63 Hz
    Amperage: 7.2 A at 100 V, 3.6 A at 200 V


    PowerVault MD1000 expansion module

    Wattage: 488 W maximum continuous; 550 W peak
    Heat dissipation: 200 W
    Voltage: 100-240 V rated (actual 90-264 V)
    Frequency: 47-63 Hz
    Amperage: 7.2 A at 100 V, 3.6 A at 200 V


    Available Hard Drive Power (per slot)
    Supported continuous consumption Up to 1.3 A at +12 V; Up to 1.5 A at +5 V

Management

  • Management Software: Modular Disk Storage Manager, Java-Based task-oriented UI

    Multi-path (failover) SW provides management of redundant data paths between host and storage

    Optional Premium Software Features:

    Enhanced Snapshots: up to 8 snapshots per virtual disk and 128 per system

    Enhanced Snapshots PLUS Virtual Disk Copy: up to 8 snapshots and up to 8 simultaneous virtual disk copies

Environmental Operating Conditions

  • Temperature

    Operating: 10° to 35°C (50° to 95°F)
    Storage: -40° to 65°C (-40° to 149°F)

    Relative humidity

    Operating: 20% to 80% (non-condensing)
    Storage: 5% to 95% (non-condensing)

    Altitude

    Operating: -15 to 3048 m (-50 to 10,000 ft)
    Storage: -15 to 10,668 m (-50 to 35,000 ft)

    Thermal Output

    1430 BTU/hour (Maximum)
Dell PowerVault MD3000

PowerVault MD3000 Direct-Attached Storage Array

Built for high-performance 2-node clusters or direct attachment up to four PowerEdge servers, the PowerVault MD3000 is a modular disk storage array capable of housing up to fifteen 3.5-inch SAS or SATA disk drives in a single 3U rack enclosure. The PowerVault MD3000 is expandable by simply adding up to two additional expansion enclosures for a total of 45 drives and 90TB of capacity. The entire array subsystem is managed from a single software application-known as the Modular Disk Storage Manager-which streamlines the management and maintenance of storage as it scales. With the PowerVault MD3000, storage can be quickly and easily added as needed without disruption to operations.
Benefits of Clustering with the PowerVault MD3000

Benefits of Clustering with the PowerVault MD3000

The Dell PowerVault MD3000 direct attached array is loaded with data-protection features to help keep your application up and running. The storage array is architected to avoid single points of failure.

External RAID storage arrays are designed to increase cluster performance & functionality
.
  • Raid controllers reside in the external storage array, enabling direct communication between them.
  • Cache coherency is maintained through direct mirroring. Both controllers contain both sets of cached data.
  • Allows users to protect their data without having to sacrifice the performance benefits of caching.
More about High Availability Clustering

Redundant components:
Supports redundant active/active RAID controllers, management ports and power/cooling to provide real security at the hardware level.
Automated drive failure detection: Capable of automatically rebuilding a failed drive using an available hot-spare drive.
Intelligent battery monitoring: Intelligent software notifies you before the battery fails, helping to reduce unplanned downtime.
Hot-pluggable components: Remove and replace disk drives, storage controllers, power supplies, and cooling fan modules while the system remains running - without impacting operations.
RAID Levels: Supporting RAID levels 0, 1, 10, 5 and 6 offering flexibility in data protection and system performance characteristics.
Premium management functionality: Snapshot and virtual-disk copy capabilities that support hourly, real-time backups of your entire data environment.
Dell PowerVault MD3000 complete management

Simple Yet Powerful Storage Management

The MD3000 direct attached storage array delivers a seamless suite of intuitive task-based management capabilities. The Modular Disk Storage Manager can help automatically configure the system for optimal performance and availability.

Multi-host management: Flexibility to manage the entire network from a single console
Recovery guru: A support tool to help diagnose system problems and help determine an appropriate recovery procedure
Enhanced data protection: Optional snapshot and virtual disk copy features
Advanced Data Management

Advanced Data Management

For advanced availability, the PowerVault™ MD3000 disk storage array offers optional backup and data protection features; Snapshot and Virtual Disk Copy (VDC).

Snapshots are point in time copies of the data, so if a file is accidentally altered of deleted it can be recovered easily by reverting to a previous state. Snapshots can be taken instantaneously, minimizing application downtime.
Virtual Disk Copy (VDC) is a full, replicated copy of a source data taken at a discrete point in time, enabling quick and seamless virtual disk relocation, and disk based backup and recovery.
SAS drives are used for high performance storage

Dual Drive Functionality

The PowerVault MD Family enables organizations to mix SAS and SATA drives in a single enclosure delivering additional flexibility to optimize drive speed and capacity while maximizing storage spend and footprint.

SAS for Performance

The PowerVault MD3000 has 3.5-inch SAS drive technology providing up to twice the storage capacity available on 2.5-inch size drives. When configured with SAS disk drives, the PowerVault MD3000 can deliver the speed, performance and reliability to satisfy mainstream and demanding server applications such as email or database applications that store active and frequently changing information. SAS specifies a transfer rate of 3.0 Gbps (300 MB/sec) for each drive on the channel to help provide these high levels of performance.

SATA for Capacity


SATA disk drives easily handle large volumes of data at an excellent cost-per-Gigabyte. SATA drives are ideal support for digital images, file archiving, audio/video storage, or back-up to disk applications. Each high-volume SATA disk can manage an impressive capacity of up to 1TB, making them an ideal complement to the faster but lower capacity SAS drives.
Active-Active RAID controllers for high redundancy

Active RAID Controllers

RAID controllers are the brains that govern everything that occurs within the PowerVault MD3000 storage enclosure, performing necessary calculations, controlling I/O performance operations, handling communication with management applications, and storing firmware. The PowerVault MD3000 was designed to incorporate twin active/active RAID controllers with mirrored cache for high-availability. If one controller should fail, the surviving controller can handle the full processing load until its mate is brought back online.
Dell PowerVault MD3000 Hot-pluggable Technology

Hot-pluggable Technology

Dell's PowerVault MD3000 storage array allows you to remove and replace redundant components without disruption to operation. In the rare event of component failure, disk drives, storage controllers, power supplies, and cooling fan modules are all hot-pluggable - you can remove and replace them for easy repair while the system remains up and running. The PowerVault MD3000 enclosure contains two integrated power supply and fan modules - if one is removed the other can handle the demand, virtually eliminating downtime to your storage array.
Dell PowerVault MD3000 Hot-Spare Drives

Hot-Spare Drives

If a physical disk should fail in the PowerVault MD3000 storage array, the lost data can be automatically reconstructed onto a hot-spare drive using redundant data found on the surviving disks. When the failed disk is removed, a new physical drive can be inserted in its place, which is used as a new hot spare for other disks that might fail.

The Dell™ PowerVault™ MD3000 modular disk array is designed to provide simple, high-availability storage for Dell PowerEdge™ servers, particularly in two-node clustered solutions.

Using a cluster of two PowerEdge servers with shared access to the data in an MD3000 storage array can greatly enhance IT service levels. Clustering also enables planned maintenance without downtime and can increase performance for applications that support active/active clustering.

Without continuously available data, organizations may suffer the following effects of downtime:

  • Lost revenue
  • Reduced customer satisfaction
  • Decreased productivity for the company and its employees
  • Lost market opportunities
  • Threatened company reputation

Benefits of Clustering with the PowerVault MD3000

The Dell PowerVault MD3000 array is loaded with data-protection features to help keep your application up and running. The hardware is architected to avoid single points of failure, featuring redundant active/active RAID controllers with mirrored cache and IO multi-pathing. The redundant controller paths permit non-disruptive core code upgrades as well as automatic failover. The chassis also features hot-pluggable, redundant power supplies, cooling modules and disk drives. In addition to these hardware features, the PowerVault MD3000 also provides an extra level of software protection through features like active disk scrubbing, global or dedicated hot-sparing, and optional Snap-shot and Virtual disk copy. Finally, the MD Storage Manager console makes it easy to configure your storage for a clustered environment, with features like special real-time cluster set-up guidance and automatic cluster-optimized configuration of virtual disk settings.

External RAID configurations are designed to increase cluster performance & functionality vs host-based-RAID clusters

  • Raid controllers reside in the external storage array, enabling direct communication between them.
  • Cache coherency is maintained through direct mirroring. Both controllers contain both sets of cached data.
  • Allows users to protect their data without having to sacrifice the performance benefits of caching.

Benefits of SAS architecture: Scale IOPs performance as you add hard drives

  • Point-to-point architecture helps ensure that each drive has it’s own "dedicated" bandwidth.
  • SAS is a point to point architecture thus has dedicated bandwidth for each drive and performance continues to scale beyond the traditional SCSI limitation of 16 devices.
  • Easily scale up to 45 drives by adding up to two PowerVault MD1000 expansion modules.

Reliability and redundancy

  • Redundant active/active RAID controllers with mirrored cache and automated I/O path failover.
  • Redundant data paths.

Advanced array-based data protection capabilities

  • Snapshot capability allows you to take point-in-time data copies for quick restoration without interrupting your application's performance.
  • Volume Copy feature allows complete replication of data sets for analysis, testing, or disk-based backup.
  • Integration with VSS provides for application level backups.
Additional Resources:

Dell Power Solutions Article:
Building Highly Available Systems: The Dell PowerEdge Cluster SE600W and PowerVault MD3000

High Availability website:
SAS Clustering Solution with PowerEdge Cluster SC600W and PowerVault MD3000

Microsoft Exchange ESRP Review for MD3000
Microsoft Exchange ESRP Review for MD3000

Dell PowerVault Solutions for Microsoft SQL Server 2005 Always On Technologies
Dell PowerVault Solutions for Microsoft SQL Server 2005 Always On Technologies
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