Adaptec 6320SS - DuraStor Hard Drive Array Guide de l'utilisateur Page 105
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- Table des matières
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- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
A-2
Storage Concepts
Controllers
A controller is a hardware device that performs input/output (I/O)
functions. Controllers also perform other functions such as read
and write caching and RAID management. They can be internal
(inside the host computer) or external (in an enclosure). Controllers
are also known as an adapters, embedded storage controllers, or
Host Bus Adapters (HBA).
Storage Systems
A storage system exists when the RAID controller resides outside of
the server enclosure. The storage system is controlled from the host
system using storage manager software such as Disk Array
Administrator. Since the controller is located in an external
enclosure and accessed using standard SCSI protocols, the need for
specific operating system drivers is eliminated. Some external
RAID controllers can be configured with single or dual host
channels and can support either standalone mode, or an active-
active failover pair.
Channels
A channel is any path used for the transfer of data and control
information between storage devices and the controller or storage
system. Each controller’s channel is identified by a number. A
channel is also known as a bus.
Disk Drives
The term disk drive refers to the physical disk devices that store
your data. Depending on your controller, you may use either SCSI
or ATA drives.
A SCSI drive is identified by a disk ID, which is displayed in the
following format:
2:04:0
Channel Number
SCSI ID
Logical Unit Number
(LUN)
- 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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