SUPER MICRO Computer AOC-USAS-L4iR manual RAID Minimum Drive Requirements, RAID 1 Arrays

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Safety Information and Technical Speciﬁcations

RAID Minimum Drive Requirements

Use the following chart to determine the minimum number of hard drives needed to set up a RAID environment.


RAID	Minimum Hard Drives
RAID 0	2
RAID 1	2
RAID 5*	3*
RAID 10	4 (2 RAID 1 Arrays)

* Raid 5 is supported by the AOC-USAS-L4iR add-on card.

2-5

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Contents AOC-USAS-L4i AOC-USAS-L4iR Manual Revision 1.0b Release Date October 17 Table of Contents MegaRAID Storage Manager SoftwareOverview and Installation Adding a Saved Storage Conﬁguration Add-on Card Users Guide An Important Note to Users Product FeaturesOverview Operating Systems SupportedAsia-Paciﬁc Contacting SuperMicroHeadquarters EuropeESD Safety Guidelines General Safety GuidelinesAn Important Note to Users Add-on Card Users Guide Front Connectors Front Connectors and Jumpers #1. Internal SAS Connector Front Connector and Pin DeﬁnitionsFront Jumper Locations and Pin Deﬁnitions Jumper SettingsFront Pane LEDs LED IndicatorsRAID 1 Arrays RAID Minimum Drive RequirementsAdd-on Card Users Guide Performing a Quick Conﬁguration Chapter Driver InstallationConﬁguring Arrays and Logic Drives Starting the MegaRAID Bios CUUsing Easy Conﬁguration Logical Drive Conﬁguration Using New Conﬁguration and View/Add ConﬁgurationSafety Information and Technical Speciﬁcations Creating a Global Hotspare Drive Initializing Logical Drives Logical Drive Submenu Setting the Hard Disk Write Cache and Read Ahead Policies Rebuilding a Drive Hot Plug Support Checking Data Consistency Viewing and Changing Device Properties Viewing and Changing Adapter Properties Forcing Drives Online or Ofﬂine Viewing and Changing Logical Drive PropertiesViewing Physical Drive Properties Conﬁguring a Bootable Logical Drive Deleting a Logical DriveClearing a Storage Conﬁguration Creating Storage Conﬁgurations OverviewHardware and Software Requirements Monitoring Storage DevicesMaintaining Storage Conﬁgurations Installation Customer Information Screen Customer Information Screen Installing MegaRAID Storage Manager Software for Linux Linux Error Messages Add-on Card Users Guide Starting MegaRAID Storage Manager Software Chapter MegaRAID Storage Manager Window and MenusSelect Server Window Select Server Window MegaRAID Storage Manager Window Physical/Logical View Panel Event Log Panel Properties/Operations/Graphical View PanelFile Menu Menu BarLog Menu Creating a New Storage Conﬁguration Chapter ConﬁgurationFirst Screen Conﬁguration Wizard Understanding Virtual Disk Parameters Auto Conﬁguration Screen Using Auto ConﬁgurationUsing Guided Conﬁguration First Guided Conguration Screen Second Guided Conﬁguration Screen Manual Conﬁguration First Manual Conﬁguration Screen Using Manual Conﬁguration RAIDManual Conﬁguration Deﬁning a Virtual Disk Manual Conﬁguration Adding a Hotspare Safety Information and Technical Speciﬁcations Using Manual Conﬁguration RAID Using Manual Conﬁguration RAID Adding Hotspare Disks Changing Adjustable Task Rates Deleting a Virtual Disk Changing Virtual Disk PropertiesClearing a Storage Conﬁguration from a Controller Saving a Storage Conﬁguration to DiskAdding a Saved Storage Conﬁguration