Dell S300, S100 manual Example of Distributed Parity RAID

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Figure 2-3. Example of Distributed Parity (RAID 5)

stripe element1	stripe element2	stripe element3	stripe element4	stripe element5	parity (1-5)
stripe element7	stripe element8	stripe element9	stripe element10	parity (6-10)	stripe element6
stripe element13	stripe element14	stripe element15	parity (11-15)	stripe element11	stripe element12
stripe element19	stripe element20	parity (16-20)	stripe element16	stripe element17	stripe element18
stripe element25	parity (21-25)	stripe element21	stripe element22	stripe element23	stripe element24
parity (26-30)	stripe element26	stripe element27	stripe element28	stripe element29	stripe element30

20

Overview

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Contents User’s Guide February Contents Installing the Perc S300 Adapter Complete the Hardware InstallationInstalling the Microsoft Windows Drivers Physical Disk-Related ErrorsRAID Technology Understanding Disk Arrays Industry Canada Notice Canada OnlyContents Page Safety General Safety When Working Inside Your SystemProtecting Against Electrostatic Discharge Page Overview IntroductionOverview Supported Platforms Requirements Physical disksOverview Boot to it About RAID Summary of RAID LevelsDisk Mirroring RAID TerminologyDisk Striping Spanned RAID Levels Parity DataExample of Distributed Parity RAID Description FeaturesGeneral Features Description Allows hot-swapping Physical disks, in the same virtual disk Disks That supports hot-swappingBackplane with hot-swap capability Features Virtual disk Migration during an OCESpecifications RAID General Considerations Hardware InstallationBefore You Begin Installing the Perc S300 Adapter Installing a Perc S300 Adapter Connecting the Cables Complete the Hardware Installation Connect Physical Disks to the Perc S300 AdapterHardware Installation Downloading the Controller Driver Media Installing the DriversInstalling the Microsoft Windows Drivers To Use Pre-Installation Requirements for the Controller DriversOperating System And Device Driver Media 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 RAID Configuration Management Perc Virtual Disk Management Utility Operations DescriptionAccessing the Perc Virtual Disk Management Utility Perc Virtual Disk Management Text Colors Description Initializing Physical Disks Creating Virtual Disks Before You BeginRAID Configuration and Management Deleting Virtual Disks RAID Configuration and Management Swapping Two Virtual Disks Delete a Global Hot Spare Managing Global Hot SparesCreate a Global Hot Spare Viewing Physical Disk Details Viewing Virtual Disk DetailsController Options Controller Options Description How to OperateRescanning Disks Continuing to Boot Pause if DegradedRAID Configuration and Management RAID Mode to ATA Mode TroubleshootingSystem Startup Problems 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 On the virtual disk A Virtual Disk is in a Failed StateRedundant virtual disk 12. Cannot Create a Global Hot Spare Select View Virtual Disk Details Physical Disk-Related Errors 14. a Dedicated Hot Spare FailsTroubleshooting Controller Specifications Appendix aRead, Write, and Cache Policy S300 adapterController Tasks Physical Disk TasksTable A-3. Physical Disk Tasks Physical Disk Task Name Perc S300 adapterVirtual Disk Tasks Supported RAID LevelsTable A-4. Virtual Disk Tasks Virtual Disk Task Name AdapterVirtual Disk Specifications Appendix B RAID Technology Understanding Disk Arrays and Virtual DisksUnderstanding RAID Levels Appendix B Disk States Virtual and Physical Disks Table B-2. Physical Disk States DefinitionFailure States Table B-3. Virtual Disk States State DefinitionTable B-5. Minimum and Maximum Physical Disk Configurations Creating Virtual Disks Future ExpansionUnderstanding Physical Disks Physical Disk StatesDedicated Hot Spares Rescanning Physical Disks for Changes in StateGlobal Hot Spares Appendix C Regulatory NoticesFCC Notice U.S. Only FCC, Class aFCC, Class B Industry Canada Notice Canada Only CE Notice European UnionIndustry Canada, Class a Industry Canada, Class BAppendix C CE Mark Notice Appendix D Contacting DellAppendix D Index Index Index 100 101 102 Glossary 103104 105 106 107 Acronym for nanoseconds, one billionth of a second108 109 110

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