Dell 3000i manual Introduction to Storage Arrays

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Introduction to Storage Arrays

A storage array includes various hardware components, such as physical disks, RAID controller modules, fans, and power supplies, gathered into enclosures. An enclosure containing physical disks accessed through RAID controller modules is called a RAID enclosure.

One or more host servers attached to the storage array can access the data on the storage array. You can also establish multiple physical paths between the host(s) and the storage array so that loss of any single path (through failure of a host server port, for example) does not result in total loss of access to data on the storage array.

The storage array is managed by MD Storage Manager software running either on a host server or a dedicated management station. On a host server system, MD Storage Manager and the storage array communicate management requests and event information directly via iSCSI ports. On a dedicated management station, MD Storage Manager communicates with the storage array either through an Ethernet connection on the RAID controller modules or via the host agent installed on the host server.

Using MD Storage Manager, you configure the physical disks in the storage array into logical components called disk groups, then divide the disk groups into virtual disks. You can make as many disk groups and virtual disks as your storage array configuration and hardware permit. Disk groups are created in the unconfigured capacity of a storage array, while virtual disks are created in the free capacity of a disk group.

Unconfigured capacity is comprised of the physical disks not already assigned to a disk group. When a virtual disk is created using unconfigured capacity, a disk group is automatically created. If the only virtual disk in a disk group is deleted, the disk group is also deleted. Free capacity is space in a disk group that has not been assigned to a virtual disk.

Data is written to the physical disks in the storage array using RAID technology. RAID levels define the way in which data is written to physical disks. Different RAID levels offer different levels of accessibility, redundancy, and capacity. You can set a specified RAID level for each disk group and virtual disk on your storage array.

You can also provide an additional layer of data redundancy by creating disk groups that have a RAID level other than 0. Hot spares can automatically replace physical disks marked as Failed.

For more information on using RAID and managing data in your storage solution, see the Dell™ PowerVault™ Modular Disk Storage Manager User’s Guide.

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Introduction

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Contents Systems Installation Guide February Contents If you are using Rhel 5 or Sles 10 SP1 Configuring iSCSI on your Storage ArrayIf you are using Windows Server 2008 Core Version Guidelines for Configuring Your Network for iSCSI Contents Introduction System RequirementsManagement Station Hardware Requirements IntroductionIntroduction to Storage Arrays About the Enclosure Connections Hardware InstallationStorage Configuration Planning Redundancy vs. Nonredundancy Direct-Attached SolutionsCabling the Enclosure MD3000i RAID Private network Controller Hardware InstallationTwo-node cluster Ethernet Two host server Corporate, public or private network Four host server PortControllers Network-Attached Solutions Enclosure dual Private network ControllersIP SAN Gigabit Ethernet Host servers Ethernet switch Attaching MD1000 Expansion Enclosures Expanding with Previously Configured MD1000 Enclosures Expanding with New MD1000 Enclosures Hardware Installation Software Installation Software InstallationSystem Assembly and Startup Installing the iSCSI Initiator on a Windows Host Server Installing the iSCSI Initiator on a Linux Host ServerTo install the iSCSI initiator during Rhel 4 installation To install the iSCSI initiator after Rhel 4 installationTo install the iSCSI initiator during Rhel 5 installation To install the iSCSI initiator after Rhel 5 installationTo install the iSCSI initiator during Sles 9 installation To install the iSCSI initiator after Sles 9 installationInstalling MD Storage Software Software Installation Command to manually mount CD is When the installation completes, click Done Installing a Dedicated Management Station Windows and Linux Documentation for Windows Systems Viewing Resource CD ContentsInstalling the Manuals Documentation for Linux Systems Insert the CDInstalling the Manuals Terminology Array Setup and iSCSI ConfigurationBefore You Start ISCSI Configuration Worksheet Management stationStorage array TargetSubnetDefault gateway Setting Up Your iSCSI Storage Array Static IP address storage arrayISCSI controller 0, ISCSI controller 1,MD3000i Target ChapArray Using iSNSConfiguring iSCSI on Your Storage Array Default Management Port Settings Discover the Storage Array Out-of-band management onlyAutomatic Storage Array Discovery Manual Storage Array DiscoverySet Up the Array Initial Setup Tasks→ Configure Update your management stationAddresses on each controller Ethernet Management Ports, thenConfigure the iSCSI Ports on the Storage Array Perform Target Discovery from the iSCSI Initiator If you are using Windows Server 2008 Core VersionStart the iSCSI service sc start msiscsi If you are using Linux Server If you are using Rhel 5 or Sles 10 SP1 Etc/init.d/iscsi restartIscsiadm -m node -T initiatorusername -p targetip -u Configure Host Access Understanding Chap Authentication What is CHAP?Target Chap Mutual ChapChap Types Defined Description How Chap Is Set UpChap Definitions Chap Settings Selection Description None Configure Chap Authentication on the Storage Array optionalConfiguring Target Chap Authentication on the Storage Array Configuring Mutual Chap Authentication on the Storage Array Configure Chap Authentication on the Host Server optional IPaddressofiSCSIportonstoragearray CHAPusername CHAPpassword Setting Up Your iSCSI Storage Array If you are using Rhel 5 or Sles 10 SP1 If you are using SLES10 SP1 via the GUI Connect to the Target Storage Array from the Host Server TCPPortNumberOfTargetPortal is If you are using a Linux Server Iscsicli SessionListViewing the status of your iSCSI connections Optional Set Up In-Band Management Premium Features Troubleshooting ToolsSetting Up Your iSCSI Storage Array Uninstalling Software Uninstalling SoftwareUninstalling From Windows Uninstalling From Linux Uninstalldellmdstoragemanager and press EnterNetwork Configuration Guidelines Guidelines for Configuring Your Network for iSCSIWindows Host Setup Linux Host Setup Configuring TCP/IP on Linux using Dhcp root users only NETWORKING=yes HOSTNAME=mymachine.mycompany.comNetwork Configuration Guidelines Index IndexLinux, 64 static IP, 63 Wins RAID

3000i specifications

The Dell 3000i is a powerful and versatile storage solution designed to meet the needs of modern businesses. Known for its flexibility and efficiency, this entry-level storage array offers a range of features that cater to small to medium enterprises and branch offices, providing them with reliable, scalable, and high-performance data management capabilities.

One of the standout features of the Dell 3000i is its impressive performance. It is powered by Dell's proprietary technology, enabling it to handle various workloads with ease. With support for both block and file storage, the 3000i allows organizations to streamline their data operations and optimize their storage strategies. This flexibility means that regardless of the specific requirements, users can manage their data efficiently and effectively.

The Dell 3000i supports multiple connectivity options, including iSCSI and Fibre Channel, ensuring that it can be integrated seamlessly into existing IT environments. This versatility allows organizations to leverage their current infrastructure while capitalizing on the advanced capabilities of the 3000i. Additionally, it features a modular architecture, enabling users to scale their storage incrementally as their needs grow. This means businesses can start with a small footprint and expand their storage capacity without any disruption.

Data protection is a critical concern for all organizations, and the Dell 3000i addresses this with advanced RAID configurations, which safeguard data against hardware failures. Furthermore, it includes features such as snapshots and remote replication, allowing businesses to implement robust disaster recovery solutions. These capabilities ensure that data remains safe and accessible, even in the event of unexpected incidents.

Another notable characteristic of the Dell 3000i is its management interface. The system is equipped with an intuitive and user-friendly management console that simplifies administrative tasks. This console provides real-time insights into performance metrics, storage utilization, and system health, enabling IT administrators to make informed decisions quickly.

In conclusion, the Dell 3000i stands out as a reliable and efficient storage solution for organizations seeking to enhance their operational capabilities. With its high performance, flexibility, and robust data protection features, it effectively supports the growing data demands of today’s digital landscape. Businesses looking for a storage system that can evolve with their needs will find the Dell 3000i to be a compelling choice, combining advanced technology with user-friendly management for optimal data handling.