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Introduction to SAS

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Introduction to SAS A In this appendix... Terminology Used in This Chapter 66 What is SAS? ...66 How Do SAS Devices Communicate 67 What's a Phy? ...67 What's a SAS Port?...68 What's a SAS Address?...68 What's a SAS Connector? ...68 What do SAS Cables Look Like 68 How are Disk Drives Identified in SAS 69 What are the SAS Connection Options 69 How is SAS Different from Parallel SCSI 71 This section provides a basic overview of the main features of SAS, introduces some common SAS terms, and explains how SAS differs from parallel SCSI. Note: For technical articles and tutorials about SAS, refer to the SCSI Trade Association (STATM) Web site at www.scsita.org.

Section	Page
About This Guide	11
What You Need to Know Before You Begin	11
Terminology Used in this Guide	12
How to Find More Information	12
Kit Contents and System Requirements	13
Kit Contents	14
System Requirements	14
About Your RAID Controller	15
Standard RAID Controller Features	16
Array-level Features	16
Advanced Data Protection Suite	16
Adding a Battery Backup Module	17
Upgrading the Controller Firmware	17
About the Adaptec RAID 5085	18
About the Adaptec RAID 5405	19
About the Adaptec RAID 5445	20
About the Adaptec RAID 5805	21
About the Adaptec RAID 51245	22
About the Adaptec RAID 51645	23
About the Adaptec RAID 52445	24
About the Adaptec RAID 5405Z	25
About the Adaptec RAID 5445Z	26
About the Adaptec RAID 5805Z	27
About the Adaptec RAID 2045	28
About the Adaptec RAID 2405	29
Getting Started	30
Choosing a RAID Level	31
Selecting Disk Drives and Cables	32
Disk Drives	32
Cables	32
Installation Options	33
Basic Installation Steps	34
Installing with an Operating System	34
Installing on an Existing Operating System	34
Installing the Controller and Disk Drives	35
Before You Begin	36
Installing the Controller	36
Installing a RAID Controller	36
Installing a RAID Controller with Zero Maintenance Cache Protection	37
Connecting Disk Drives to Your Controllers	38
Connecting Directly to the Controller	38
Connecting to a System Backplane	39
Connecting External Devices	40
Next Steps	40
Creating a Bootable Array	41
Setting the Boot Controller	42
Creating an Array	42
Creating an Array with the ACU	42
Creating an Array with Adaptec Storage Manager	44
Making Your Array Bootable	45
Installing the Driver and an Operating System	46
Before You Begin	47
Creating a Driver Disk	47
Installing with Windows	47
Installing with Windows Server 2003 or Windows XP	48
Installing with Windows Server 2008 or Windows Vista	48
Installing with Red Hat Linux	49
Installing with SUSE Linux	49
Installing with OpenServer	49
Installing with UnixWare	50
Installing with Solaris	50
Installing with VMware	51
Installing with FreeBSD	51
Installing the Driver on an Existing Operating System	52
Before You Begin	53
Creating a Driver Disk	53
Installing on Windows	54
Installing on Windows Server 2003 or Windows XP	54
Installing with Windows Server 2008 or Windows Vista	54
Installing on Red Hat or SUSE Linux	54
Installing on OpenServer	55
Installing on UnixWare	55
Installing on Solaris	55
Installing on VMware	56
Installing on FreeBSD	56
Managing Your Storage Space	57
About Adaptec Storage Manager	58
Installing Adaptec Storage Manager	58
About the Adaptec RAID Controller Configuration Utility	58
About the Adaptec RAID Configuration Utility	59
About the Adaptec Flash Utility	59
Which Utility Should I Use?	59
Solving Problems	60
Troubleshooting Checklist	61
Monitoring Disk Drives Status	61
Silencing the Alarm	61
Recovering from a Disk Drive Failure	62
Failed Disk Drive Protected by a Hot Spare	62
Failed Disk Drive Not Protected by a Hot Spare	62
Failure in Multiple Arrays Simultaneously	62
Disk Drive Failure in a RAID 0 Array	63
Multiple Failures in the Same Array	63
Resetting the Controller	63
Introduction to SAS	65
Terminology Used in This Chapter	66
What is SAS?	66
How Do SAS Devices Communicate?	67
What’s a Phy?	67
What’s a SAS Port?	68
What’s a SAS Address?	68
What’s a SAS Connector?	68
What do SAS Cables Look Like?	68
How are Disk Drives Identified in SAS?	69
What are the SAS Connection Options?	69
Direct-attach Connections	69
Backplane Connections	69
SAS Expander Connections	70
How is SAS Different from Parallel SCSI?	71
Understanding RAID	72
Understanding Drive Segments	73
Non-redundant Arrays (RAID 0)	73
RAID 1 Arrays	74
RAID 1 Enhanced Arrays	74
RAID 10 Arrays	75
RAID 5 Arrays	76
RAID 5EE Arrays	77
RAID 50 Arrays	78
RAID 6 Arrays	79
RAID 60 Arrays	79
Selecting the Best RAID Level	80
Using the Adaptec RAID Configuration Utility	81
Introduction to the ARC Utility	82
Running the ARC Utility	82
Navigating the ARC Utility	82
Using the ACU to Create and Manage Arrays	82
Creating a New Array	82
Managing Existing Arrays	83
Creating Bootable Arrays	83
Modifying Power Management Settings	83
Modifying Cache Settings	84
Initializing Disk Drives	84
Rescanning Disk Drives	84
Secure Erasing Disk Drives	84
Stopping a Secure Erase	85
Managing Global Hot Spares	85
Using the ACU to Create and Manage JBODs	85
Creating a New JBOD	85
Managing Existing JBODs	86
Converting a JBOD Into a Simple Volume	86
Using SerialSelect to Modify Controller Settings	86
Opening SerialSelect	86
Applying Changes and Exiting	86
Modifying Your Controller’s Configuration	86
General Controller Settings	87
Power Management Settings	88
PHY Settings	88
Formatting and Verifying Disk Drives	88
Locating Disk Drives	89
Identifying Disk Drives	89
Viewing the Event Log	90
Using the Array Configuration Utility for DOS	91
Getting Started	92
Working in the ACU Using Menus	92
Running the ACU Using Scripts	93
About Playback Mode	93
About Record Mode	94
Creating the Script File Manually	94
Entering Comments in the Script File	94
Array Definition Block Keywords	95
Array Keyword	95
Drives Keyword	95
End Keyword	96
HotspareDrives Keyword	96
InitializeAll Keyword	96
Method Keyword	97
ReadCache Keyword	97
Size Keyword	97
StripeSize Keyword	97
Type Keyword	98
Wait Keyword	98
WriteCache Keyword	98
ACU Error Codes	98
Sample Scripts	99
Using the Adaptec Flash Utility	101
System Requirements	102
Compatibility Notes	102
Before You Begin	102
Obtaining the Firmware	102
Creating the Firmware Update Disks	103
Running the Menu-based AFU	103
Running the AFU from the Command Line	104
AFU Commands	104
List	104
Save	104
Update	105
Verify	106
Version	106
Help	106
Updating the Flash Using the AFU Command Line	107
Controller LED and I2C Connector Quick Reference	108
Adaptec RAID 5085 LED Connector Specification	109
Adaptec RAID 5405/5405Z LED and I2C Connector Specification	111
Adaptec RAID 5445/5445Z LED and I2C Connector Specification	112
Adaptec RAID 5805/5805Z LED and I2C Connector Specification	114
Adaptec RAID 51245 LED and I2C Connector Specification	116
Adaptec RAID 51645 LED and I2C Connector Specification	118
Adaptec RAID 52445 LED and I2C Connector Specification	120
Adaptec RAID 2045 LED Connector Specification	123
Adaptec RAID 2405 LED and I2C Connector Specification	123
Safety Information	125
Electrostatic Discharge (ESD)	125
Technical Specifications	126
Environmental Specifications	127
DC Power Requirements	127
Current Requirements	127

Match case Limit results 1 per page

Introduction to SAS

In this appendix...

Terminology Used in This Chapter

.......................................................................................

What is SAS?

...........................................................................................................................

How Do SAS Devices Communicate?

...................................................................................

What’s a Phy?

..........................................................................................................................

What’s a SAS Port?

..................................................................................................................

What’s a SAS Address?

............................................................................................................

What’s a SAS Connector?

.......................................................................................................

What do SAS Cables Look Like?

............................................................................................

How are Disk Drives Identified in SAS?

................................................................................

What are the SAS Connection Options?

...............................................................................

How is SAS Different from Parallel SCSI?

.............................................................................

This section provides a basic overview of the main features of SAS, introduces some common

SAS terms, and explains how SAS differs from parallel SCSI.

Note:

For technical articles and tutorials about SAS, refer to the SCSI Trade Association

(STA

) Web site at www.scsita.org.