Adaptec 6320SS - DuraStor Hard Drive Array User's Guide download pdf (Page 104)

A-1

Storage Concepts

In This Appendix

Disk Array Administrator uses specific terms to describe storage

concepts and configurations. If you are new to storage technology

and array configurations, this section will help you understand

basic Redundant Array of Independent Disks (RAID) technology

and terminology.

Devices

A device is any type of physical computer storage unit such as a

disk drive, controller, or enclosure.

Devices A-1

Controllers A-2

Storage Systems A-2

Channels A-2

Disk Drives A-2

Arrays A-3

Free Space A-4

Partitions A-4

Redundancy A-6

Array Types A-6

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 138 139

Adaptec Disk Array 1
Administrator 1
Copyright 2
Trademarks 2
Disclaimer 2
Contents 3
3 Monitoring System Status 4
4 Managing Spares 4
5 Configuring the Controller 4
7 Troubleshooting 5
A Storage Concepts 6
B SAF-TE Implementation 6
Getting Started 7
Getting Online Help 8
↑ or ↓ key 10
Changing the Screen Display 11
Creating and Managing 12
Arrays and Partitions 12
Managing Arrays 20
Viewing Array Status 22
Viewing Disk Drive Status 23
Verifying an Array 24
Viewing Verification Status 25
Reconstructing an Array 26
Expanding Array Capacity 27
Viewing Expansion Status 28
Changing an Array Name 29
Changing Array Ownership 29
Trusting an Array 30
Deleting an Array 32
Managing Partitions 33
Viewing Partition Status 35
Viewing Partition Statistics 36
■ I/O size 37
Expanding a Partition 38
Changing a Partition Name 38
Changing a Partition LUN 39
Deleting a Partition 40
Monitoring System Status 41
Viewing the Most Recent Event 43
Viewing One Event at a Time 43
Information 44
Displaying Overall Statistics 47
Resetting Overall Statistics 49
Managing Spares 50
Managing Dedicated Spares 51
Enabling Dynamic Spares 52
Managing the Spare Pool 54
Displaying the Spare Pool 55
Configuring the Controller 56
Rebooting the Controller 57
Changing the Date and Time 57
Configuring the Host Channels 58
Configuring the SCSI Channels 61
Understanding Operating Modes 63
Changing the Operating Mode 65
Managing the Other Controller 66
Killing the Other Controller 68
Disabling SCSI Channel 3 69
Changing the Sample Rate 70
Locking the Cache 72
Configuring the Battery 73
2 Select Yes and press Enter 74
3 Press Enter to reboot 74
Changing the Utility Priority 75
Rescanning All Channels 76
Pausing I/O 77
Restoring Default Settings 78
Managing Disk Drives and 79
Enclosures 79
Displaying All Disk Drives 80
Displaying Disk Cache Status 82
Blinking a Disk Drive LED 83
Taking Down a Disk Drive 84
Testing a Disk Drive 85
Managing SAF-TE Enclosures 86
■ Type NONE and press Enter 87
Input Problems 90
Array Problems 91
Host SCSI Channel Problems 92
Device SCSI Channel Problems 93
Problems During Bootup 94
Warning and Error Events 96
Disk Channel 99
Sense Key 99
Sense Code 99
Sense Code Qualifier 99
Disk Channel SCSI ID 101
Error Code 101
Troubleshooting 103
Storage Concepts 104
Channels 105
Disk Drives 105
Controllers 105
Storage Systems 105
Free Space 107
Partitions 107
Array on Virtual 108
Redundancy 109
Array Types 109
Volume Set 111
Stripe Set (RAID 0) 111
Mirror Set (RAID 1) 113
, with one chunk of each 114
Figure A-6 RAID 5 set 115
SAF-TE Implementation 119
Enclosure Considerations 120
Host Communication Methods 121
Glossary 122
Glossary-2 123
Glossary-3 124
Glossary-4 125
Glossary-5 126
Glossary-6 127
Glossary-7 128
. See also 129
Glossary-9 130
Glossary-10 131
Glossary-11 132
Adaptec, Inc 139
691 South Milpitas Boulevard 139
Milpitas, CA 95035 USA 139

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Adaptec 6320SS - DuraStor Hard Drive Array User's Guide Page 104

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