Single-Ended and LVD Scsi Buses | Dell 3 specs

w w w . d e l l . c o m s u p p o r t . d e l l . c o m

PERC 3/SC has one ultra-high-density 68-pin external connector for the external storage subsystem and one high-density 68-pin internal connector.

Single-Ended and LVD SCSI Buses

The SCSI standard defines two electrical buses: a single-ended bus and an LVD bus. PERC 3 supports both standards.

Maximum Cable Length for SCSI Standards

Table 1-1 displays the maximum length of cable that you can use for various SCSI standards.

Ta b l e 1 - 1 . M a xi m u m C a bl e Le n g t h f o r S C S I S t an d a r d s

SCSI Standard	Single-ended	LVD	Maximum # of
			Drives

SCSI I	6 m	12 m	7

Fast SCSI	6 m	12 m	7

Fast Wide SCSI	6 m	12 m	15

Ultra SCSI	1.5 m	12 m	7

Ultra SCSI	3 m	12 m	3

Wide Ultra SCSI	N/A	12 m	15

Wide Ultra SCSI	1.5 m	12 m	7

Wide Ultra SCSI	3 m	12 m	3

Ultra 2 SCSI	N/A	25 m	1

Ultra 2 SCSI	N/A	12 m	7

Wide Ultra 2 SCSI	N/A	25 m	1

Wide Ultra 2 SCSI	N/A	12 m	15

SCSI Bus Widths and Maximum Throughput

Table 1-2 displays the SCSI bus widths and maximum throughput for each of the SCSI standards.

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Dell 3 Single-Ended and LVD Scsi Buses, Maximum Cable Length for Scsi Standards, Scsi Bus Widths and Maximum Throughput

Contents

Perc 3 User’s Guide July 5C229 Safety Instructions General When Using Your Computer When Working Inside Your Computer Protecting Against Electrostatic Discharge Ergonomic Computing Habits Battery Disposal W . d e l l . c o m s u p p o r t . d e l l . c o m Contents Perc 3/SC Fault Tolerance Features Configuration on Disk ConfigurationOperating System Software Drivers Hardware Architecture Features Array Performance Features Perc 3/SC Bios Perc 3/QC Features Configuring Scsi Physical Drives 102 Planning the Array Configuration103 118 119120 131 136 135150 Enabling and Disabling the Cluster Mode 185 163167 173 190 Designating Drives as Hot Spares 195196 197 Glossary Index Figures Figures Tables Perc 3/QC Specifications 182 Bios Boot Error Messages E r v i e w C T I O N Perc 3 Features Perc 3 Overview Scsi Connectors Scsi Channels Maximum Cable Length for Scsi Standards Single-Ended and LVD Scsi BusesScsi Bus Widths and Maximum Throughput Operating System Support Scsi Standard Scsi Bus Width Scsi Throughput Over view Introduction to RAID Perc 3 Host-Based RAID Solution RAID Definition Components and Features Fault TolerancePhysical Array Logical Drive Consistency Check Disk Striping Stripe Size Stripe WidthG u r e 2 1 . E x a m pl e o f D i s k S t r i p i n g Disk Mirroring G u r e 2 2 . E xa m pl e o f D i s k M i r r or i n g Disk Spanning G u r e 2 3 . E x a m pl e o f D i s k S p an n i n g Describes how to configure RAID 10 and RAID 50 by spanning Spanning for RAID 10 or RAIDParity Ta b l e 2 2 . Ty pe s o f Par i t y Hot Spares G u r e 2 4 . E x a m pl e o f Par i t y Global Hot Spare Disk RebuildsDedicated Hot Spare Hot Swap Scsi Drive StatesRebuild Rate Scsi drive states are listed in Table Logical Drive States Enclosure ManagementLogical drive states are listed in Table Ta b l e 2 3 . S C S I D r i v e S t a t e s RAID Levels Perc 3 also supports independent drives configured as RAID OverviewSelecting a RAID Level Tab l e 3 1 . R a I D Le v el s Fault tolerance Does not provide fault tolerance. All data lost if anyRAID 0 provides high data throughput, especially for Large files. Any environment that does not require Displays an example of a RAID 0 array G u r e 3 1 . R a I D 0 a r r a y Environment that requires fault tolerance but small Ideal for any application that requires fault toleranceUse RAID 1 for small databases or any other Capacity G u r e 3 2 . R a I D 1 a r r a y Office automation and online customer service that Requires fault tolerance. Use for any application thatRAID 5 provides high data throughput, especially for Large files. Use RAID 5 for transaction processing Displays an example of a RAID 5 array G u r e 3 3 . R a I D 5 a r r a y Any environment that requires a higher degree of fault 2n, where n is greater than 1. The maximum numberRAID 10 works best for data storage that needs 100% Redundancy of mirrored arrays and that also needs G u r e 3 4 . R a I D 1 0 a r r a y RAID 50 works best when used with data that requires High reliability, high request rates, and high dataTransfer and medium to large capacity RAID 50 provides high data throughput, data Displays an example of a RAID 50 array G u r e 3 5 . R a I D 5 0 a r r a y Perc 3/SC Features Configuration Features Specification FeatureHardware Requirements Ta b l e 4 1 . C o nf i g u r a t i o n Fe at u r e s Smart Technology Configuration on Disk ConfigurationTa b l e 4 1 . C on f i g u r a t i o n Fe at ur e s Hardware Architecture Features Array Performance FeaturesPerc 3/SC hardware architecture features are shown in Table Perc 3/SC array performance features are shown in Table Perc 3/SC Fault Tolerance Features Perc 3/SC fault tolerance features are shown in TableSoftware Utilities Perc 3/SC software utilities are shown in Table Perc 3/SC Specifications Perc 3/SC specifications are shown in TableTa b l e 4 7 . P E R C 3 / S C Specification s Operating System Software Drivers PCI Bridge/CPU Cache Memory Onboard Speaker Serial PortScsi Bus Scsi Termination Perc 3 Bios Configuration Utility Feature DescriptionScsi Firmware RAID Management Dell Manager WebBIOS Configuration UtilityDell OpenManage Array Manager Perc 3/DC and Perc 3/DCL Features Ta b l e 5 1 . C o nf i g u r a t i o n Fe at u r e s MB Dimm Perc 3/DC Configuration on Disk Fe a t u r es Fault Tolerance Features Lists the fault tolerance featuresTa b l e 5 4 . a r r a y Pe r f o r m a nc e Fe at u r e s Ta b l e 5 5 . Fa u l t To l e r a n ce Fe at u r e s Perc 3/DC and Perc 3/DCL Specifications Lists the Perc 3/DC and Perc 3/DCL specificationsLists the software utilities Ta b l e 5 6 . S o f t w a r e U t i l i t i e s PCI Bridge/CPU Perc 3/DC and Perc 3/DCL Bios Ta b l e 5 8 . S C S I F i r mw ar e RAID Management Perc 3/QC Features Lists the Perc 3/QC configuration features Ta b l e 6 1 . C o n f i g u r at i on Fe a t u r e s Smart Technology Lists the Perc 3/QC hardware architecture features Lists the array performance featuresS k Fe a t u r es Ta b l e 6 4 . a r r a y Pe r f o r m a n ce Fe at u r e s Fault tolerance features are listed in Table Software utilities are listed in TableTa b l e 6 4 . a r r a y Pe r f o r m a nc e Fe at u r e s Ta b l e 6 5 . Fa u l t To l e r a n ce Fe at u r e s Perc 3/QC Specifications Perc 3/QC specifications are listed in TableTa b l e 6 6 . S o f t w a r e U t i l i t i e s Ta b l e 6 7 . P E R C 3 / Q C S pe c i f i c a t i o n s Ta b l e 6 7 . P E R C 3 / Q C Pe c i f i c a t i o n s Perc 3/QC Bios Ta b l e 6 8 . S C S I F i r mw ar e Dell Manager Configuring Perc Configuring Scsi Physical Drives Current ConfigurationDevice Description Scsi Channel Scsi ID Scsi ID Logical Drive Configuration Logical LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 Ta b l e 7 6 . P h y s i c al D ev i c e L a y o ut Physical Device LayoutChannel W . d e l l . c o m s u p p o r t . d e l l . c o m Ta b l e 7 6 . P h y s i c al D ev i c e L a y o ut Configuring Arrays Configuration Strategies Arranging ArraysCreating Hot Spares Creating Logical Drives Fault Tolerance Protection Maximizing CapacityMaximizing Drive Availability Description Drives Capacity Level Required Assigning RAID Levels Maximizing Drive Performance Data Access Requirements Configuring Logical DrivesOptimizing Data Storage Array Functions Planning the Array ConfigurationQuestion Answer Using the Array Configuration Planner Overview Random Array DeletionTa b l e 7 1 Configuration Module 100 Perc 3/SC Hardware Installation Requirements Optional Equipment Perc 3/SC Card Layout Installation StepsG u r e 8 1 . P E R C 3 / S C C a r d L a yo u t Power Down License agreement Perc 3 configuration utilities disketteUnpack 104 Set Jumpers J1 Termination EnableTab l e 8 1 . P E R C 3 / S C J u mp e r s J9 I2C Interface Connector J5 Serial PortTa b l e 8 3 . J9 N o u t J10 Term Power J8 Hard Disk LEDJ15 Rubi Slot Interrupt Steering Ta b l e 8 5 . J 8 H a r d D i s k L E D Set Scsi Termination J16, J17 Rubi Slot Interrupt SteeringG u r e 8 2 . E xa m pl e o f S C S I Te r m i n at i on 108 Scsi Termination Selecting a TerminatorTerminating Internal Scsi Disk Arrays 109 ID2 G u r e 8 4 . P C I S l o t s o n M o t h e r b o ar d Install Perc 3/SC111 112 Connect Scsi Cables Connect Scsi DevicesG u r e 8 6 . C o n n e ct i n g S C S I C a b l e s 113 Cable Suggestions Set Target IDs114 Power On Host System Ta b l e 8 Tar g etPriority Highest Lowest 115 Install Operating System Software Drivers Run Perc 3 Bios Configuration Utility or WebBIOS Utility116 Perc 3/DC or Perc 3/DCL Hardware Installation Perc 3/DC or Perc 3/DCL Hardware Installation Perc 3/DC Card Layout G u r e 9 1 . P E R C 3 / D C C a r d L a y ou t Perc 3/DCL Card Layout G u r e 9 2 . P E R C 3 / D C L C ar d L ay o u t Ta b l e 9 1 . J u mp e r S e t t i n g s Unpack the Perc 3/DC or Perc 3/DCL121 J2, and J3 Termination Enable J9 Onboard Bios EnableJ9 Setting Onboard Bios Status Jumper J11 Serial Port J10 Nvram ClearJ13 Dirty Cache LED J16 and J18 Termpwr Enable J14 Scsi Activity LEDTab l e 9 6 . J 1 3 D i r t y C ac h e L E D P i n ou t Ta b l e 9 7 . J1 4 S C S I a c t i v i t y P i n o u t J17 I2C Connector J17 is a 4-pin header. -9 displays the J17 pinoutTa b l e 9 9 . J 1 7 I 2 C C o n n e ct or P i n o u t 125 Install the Perc 3/DC or Perc 3/DCL Controller 126 127 Select and Set Target IDs for Scsi Devices 128 129 130 Install Operating System Software Driver Using Driver 5.22.1 or 5.22.2 and Firmware 161J or 161NUsing Driver 5.30 and Firmware Proceed to the Windows Device Manager 132 Perc 3/QC Hardware Installation C T I O N 1 134 Perc 3/QC Card Layout G u r e 1 0 1 . P E R C 3 / Q C C a r d L a yo u t License agreement Perc 3/QC Configuration Utilities diskette Unpack the Perc 3/QC Controller Ta b l e 1 0 1 . P E R C 3 / Q C J u m p er S et t i n g s 137 J2, J3, J5, and J7 Termination Enable J9, J10, J11, and J12 Termpwr EnableJumper Term Settings Power Channel 138 J14 Serial Port J19 Onboard Bios EnableJ17 Dirty Cache LED J23 External Battery J19 Setting Onboard Bios StatusTab l e 140 G u r e 1 0 3 . E x a mp l e o f Te r m i n at i o n 141 142 G u r e 1 0 5 . P C I S l o t s o n M o t h e r b o ar d Install Perc 3/QC143 144 G u r e 1 0 7 . C o n n e ct i n g S C S I C a b l e s 145 146 Install Operating System Driver 147 Perc 3/QC Hardware Installation Perc 3 Bios Configuration Utility Starting the Perc 3 Bios Configuration Utility Configuration On DiskSelect Configure Menu-View/Add Configuration Bios Configuration Utility Menu Options Option Description Configure Menu 152 Initialize Menu Objects MenuAdapter Ta b l e 1 1 3 . a d ap t er M en u O p t i on s 154 Cluster Mode and the Initiator ID Logical DriveVirtual Sizing Ta b l e 1 1 Log i c a l D r i v e M en u O p t i o ns Physical Drive Select Enabled to enable Virtual Sizing156 Battery Information ChannelTa b l e 1 1 6 . S C S I C h an n e l M e nu O pt i o n s Menu Item Explanation Reset Battery Charge Counter Select Reset Battery Charge CounterFormat Menu Rebuild Menu Configuring Arrays and Logical Drives Check Consistency Menu Easy Configuration Choosing the Configuration MethodNew Configuration View/Add Configuration Perc 3/QC and Perc 3/DC Default SettingsPerc 3/SC and Perc 3/DCL Default Settings Displays the default settings for Perc 3/QC and Perc 3/DC Reserved Disk Space during Configuration Using the Objects-Physical Drive menuDesignating Drives as Hot Spares Press F4 Using Easy Configuration 164 Set the Stripe Size from the Advanced Menu 165 Set the Read Policy from the Advanced Menu Set the Write Policy from the Advanced Menu166 Using New Configuration Choose Configure-New Configuration from the Management Menu 168 169 170 Set the Stripe Size Set the Write PolicySet the Read Policy 171 Set the Cache Policy 172 Using View/Add Configuration 174 175 176 177 Initializing Logical Drives Batch Initialization Deleting Logical Drives Random Array Deletion Individual Initialization Media Errors Formatting Physical DrivesFormatting Drives Select Objects-Physical Drives from the Management Menu Physical Drive action menu for a physical drive Batch FormattingSelect Format from the Management Menu Individual Formatting Manual Rebuild Batch Mode Rebuilding Failed Disk DrivesManual Rebuild Rebuilding an Individual Drive Choose Rebuild from the Management Menu Using a Pre-loaded Scsi Drive As-is Select Configure-Easy Configuration Exiting the Perc 3 Bios Configuration Utility Setting Hardware Termination Enabling and Disabling the Cluster Mode Cluster ModeClustering Select Objects-Adapter-Cluster Mode Select Enable or Disable 186 Dell Manager First Dell Manager screen displays the Management Menu Starting Dell ManagerType this Using Dell Manager in Red Hat Linux GUI Mode Management Menu OptionsDisplays the options for the Dell Manager Management Menu Ta b l e 1 2 2 . M a na g e me n t M e n u O p t i o n s Dell Manager Menu Options Ta b l e 1 2 3 . a d ap t er M en u O p t i on s Logical Drive Settings Parameter SettingTa b l e 1 2 3 . a d ap t er Me n u O p t i on s 191 Physical Drive Menu Displays the options in the physical drive menuTab l e 1 2 192 Battery Backup Scsi ChannelTa b l e 1 2 7 . S C S I C h an n e l O p t i on s Ta b l e 1 2 8 . B a t t er y B a ck u p M e n u I t e m s 194 Reconstruct Menu Parameters Initializing Logical Drives Perform the following steps to initialize one logical drive Select Objects-Logical Drive Choose Objects-Logical Drive. The logical drives display Select Physical Drive-Objects Choose Format on the Management Menu Select Objects-Physical Drive on the Management Menu Perform the following steps to rebuild one drive Ta b l e 1 2 Re b u i l d Typ e s Exiting Dell Manager Perform the following steps to rebuild more than one drive Tr o u b l e s h o o t i n g Problem Suggested Solution Ta b l e 1 3 2 . B I O S B o ot Error M e s s a ge s Bios Boot Error MessagesMessage Problem Suggested Solution View/Add Configuration 206 207 Explains the other Bios error messages that can display Other Bios Error MessagesTa b l e 1 3 3 . O t h er B I O S Error Me s s a g e s Other Potential Problems Describes other items that might cause problemsTa b l e 1 3 4 . O t h e r Po t e n t i a l P r o b l e ms Topic Information Ta b l e 1 3 5 . a u di bl e Wa r n i n g s Audible WarningsTone Pattern Meaning Examples Appendix a Scsi Cables and Connectors Appendix a Scsi Cables and Connectors Appendix B Warranties and Return Policy One-Year Limited Warranty U.S. Only 214 215 Two-Year Limited Warranty U.S. Only 216 Limited Warranty Coverage During Year One 217 Limited Warranty Coverage During Year Two 218 General Provisions 219 Three-Year Limited Warranty U.S. Only 220 Limited Warranty Coverage During Years Two and Three 221 222 Four-Year Limited Warranty U.S. Only 223 Limited Warranty Coverage During Years Two, Three, and Four 224 225 One-Year Limited Warranty Canada Only 226 227 Two-Year Limited Warranty Canada Only 228 229 230 Three-Year Limited Warranty Canada Only 231 232 233 Total Satisfaction Return Policy U.S. Only 234 Guarantee ExclusionsMaking a Claim 235 Limitation and Statutory Rights Dell World Trade LPDell Computer de Colombia Corporation Carrera 7 #115-33 Oficina Bogota, Colombia Glossary 237 238 239 240 241 242 243 244 245 Gl ossar y D ex 247 248 249 250 Page 5C229 Rev. A04