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SAN (S T O R A G E A R E A N E T W O R K ) — A high-performance, typically enterprise-level network that attaches disk storage subsystems to servers. The storage devices are accessible to multiple hosts at the same time.

SAS (S E R I A L A T T A C H E D SCSI) — SAS is a serial, point-to-point, enterprise-level device interface that leverages the proven Small Computer System Interface (SCSI) protocol set. The SAS interface provides improved performance, simplified cabling, smaller connectors, lower pin count, and lower power requirements when compared to parallel SCSI. SAS physical disks are supported only by the PERC S300 controller.

SATA (S E R I A L A D V A N C E D TE C H N O L O G Y A T T A C H M E N T ) — A physical storage interface standard, is a serial link that provides point-to-point connections between devices. The thinner serial cables allow for better airflow within the system and permit smaller chassis designs. The PERC S100 controller and PERC S300 controller leverage a common electrical and physical connection interface that is compatible with Serial ATA technology.

SCSI (S M A L L C O M P U T E R S YS T E M I N T E R F A C E ) — A standard that allows multiple devices to be connected in a daisy-chain format. The fastest hard-drives are SCSI- based, rather than IDE-based.

S P A N N I N G The method by which nested RAID levels (such as RAID 10) are constructed from multiple sets of basic, or single RAID types. For example, a RAID 10 is made up of multiple sets of RAID 1 arrays where each RAID 1 set is considered a span. Data is then striped (RAID 0) across the RAID 1 spans to create a RAID 10 virtual disk. Spanning is generally used when referencing these nested RAID levels.

S P A R E A physical disk available to replace another physical disk in case that physical disk fails.

SSD (S O L I D S T A T E D I S K ) — A high-performance storage media that contains no moving parts. It contains a memory board, a memory board bus, a CPU, and a battery card.

S T O R P O R T The Storport driver has been designed to replace SCSIport and work with Windows 2003 and beyond. In addition, it offers better performance for newer RAID controller protocols (like SAS), provides higher I/O throughput rates, improves manageability, and has an upgraded miniport interface. For example, while SCSIport allows a maximum of 254 commands per controller, Storport allows 254 commands per logical unit number (LUN).

S T O R A G E A R R A YS A storage entity that is managed entirely by storage management software. A storage array consists of a collection of physical components (drives, controllers, fans, and power supplies) and logical components (such as virtual disks). A storage array can span multiple physical enclosures.

Glossary

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Contents User’s Guide February Contents Complete the Hardware Installation Installing the Perc S300 AdapterInstalling the Microsoft Windows Drivers Physical Disk-Related ErrorsIndustry Canada Notice Canada Only RAID Technology Understanding Disk ArraysContents Page Safety When Working Inside Your System Safety GeneralProtecting Against Electrostatic Discharge Page Introduction OverviewOverview Supported Platforms Physical disks RequirementsOverview Boot to it Summary of RAID Levels About RAIDDisk Striping RAID TerminologyDisk Mirroring Parity Data Spanned RAID LevelsExample of Distributed Parity RAID General Features FeaturesDescription Description Allows hot-swapping Physical disks, in the same virtual disk That supports hot-swapping DisksBackplane with hot-swap capability Features Migration during an OCE Virtual diskSpecifications RAID Before You Begin Hardware InstallationGeneral Considerations Installing the Perc S300 Adapter Installing a Perc S300 Adapter Connecting the Cables Connect Physical Disks to the Perc S300 Adapter Complete the Hardware InstallationHardware Installation Installing the Microsoft Windows Drivers Installing the DriversDownloading the Controller Driver Media Operating System And Device Driver Media Pre-Installation Requirements for the Controller DriversTo Use Sata Controller to either ATA Mode or Ahci Pre-Installation Procedures For The Controller Drivers Steps DVD, and so on, perform the following For Microsoft Windows Server 2008 and Windows Server 2008 R2 For Microsoft Windows Server For Microsoft Windows Server 2008 and Windows Server 2008 R2 Installing the Drivers Installing the Drivers Perc Virtual Disk Management Utility Operations Description RAID Configuration ManagementAccessing the Perc Virtual Disk Management Utility Perc Virtual Disk Management Text Colors Description Initializing Physical Disks Before You Begin Creating Virtual DisksRAID Configuration and Management Deleting Virtual Disks RAID Configuration and Management Swapping Two Virtual Disks Create a Global Hot Spare Managing Global Hot SparesDelete a Global Hot Spare Viewing Virtual Disk Details Viewing Physical Disk DetailsRescanning Disks Controller Options Description How to OperateController Options Pause if Degraded Continuing to BootRAID Configuration and Management System Startup Problems TroubleshootingRAID Mode to ATA Mode Boot Mode, Boot Sequence Bios Bios Screen Corrective Action Lost This warning message appears when multiple virtual disks are This warning message appears when From virtual disk creation Virtual Disk-Related Errors A Virtual Disk is in a Failed State On the virtual diskRedundant virtual disk 12. Cannot Create a Global Hot Spare Select View Virtual Disk Details 14. a Dedicated Hot Spare Fails Physical Disk-Related ErrorsTroubleshooting Appendix a Controller SpecificationsRead, Write, and Cache Policy S300 adapterPhysical Disk Tasks Controller TasksTable A-3. Physical Disk Tasks Physical Disk Task Name Perc S300 adapterSupported RAID Levels Virtual Disk TasksTable A-4. Virtual Disk Tasks Virtual Disk Task Name AdapterVirtual Disk Specifications RAID Technology Understanding Disk Arrays and Virtual Disks Appendix BUnderstanding RAID Levels Appendix B Table B-2. Physical Disk States Definition Disk States Virtual and Physical DisksTable B-3. Virtual Disk States State Definition Failure StatesCreating Virtual Disks Future Expansion Table B-5. Minimum and Maximum Physical Disk ConfigurationsUnderstanding Physical Disks Physical Disk StatesRescanning Physical Disks for Changes in State Dedicated Hot SparesGlobal Hot Spares Regulatory Notices Appendix CFCC, Class a FCC Notice U.S. OnlyFCC, Class B CE Notice European Union Industry Canada Notice Canada OnlyIndustry Canada, Class a Industry Canada, Class BAppendix C CE Mark Notice Contacting Dell Appendix DAppendix D Index Index Index 100 101 102 103 Glossary104 105 106 Acronym for nanoseconds, one billionth of a second 107108 109 110
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