Dell OpenManage Server Administrator Version 6.2 Instrukcja Użytkownika Strona 5
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Supported RAID Levels
Table A-7. RAID Levels Supported by the PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4/Di, 4e/Si, 4e/Di, 4e/DC, CERC ATA100/4ch, and 4/IM
Controllers
Read, Write, and Disk Cache Policy
Table A-8. Read, Write and Disk Cache Policy Supported by the PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4/Di, 4e/Si, 4e/Di, 4e/DC, CERC
ATA100/4ch,and4/IMControllers
in a RAID 50
Minimum Number of Physical Disks
that Can Be Concatenated
2
2
2
2
2
2
2
2
2
2
NA
Minimum Number of Physical Disks in
a RAID 0
1
1
1
1
1
1
1
1
1
1
NA
Minimum Number of Physical Disks in
a RAID 1
2
2
2
2
2
2
2
2
2
2
2
Minimum Number of Physical Disks in
a RAID 5
3
3
3
3
3
3
3
3
3
3
NA
Minimum Number of Physical Disks in
a RAID 10
4
4
4
4
4
4
4
4
4
4
NA
Minimum Number of Physical Disks in
a RAID 50
6
6
6
6
6
6
6
6
6
NA
NA
Maximum number of physical disks in
a RAID 6
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Maximum number of physical disks in
a RAID 60
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Minimum number of physical disks in
a RAID 6
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Minimum number of physical disks in
a RAID 60
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
RAID Level
PERC
3/SC
PERC
3/DC
PERC
3/QC
PERC
4/SC
PERC
4/DC
PERC
4/DI
PERC
4e/SI
PERC
4e/DI
PERC
4e/DC
CERC ATA
100/4ch
PERC
4/IM
Concatenation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
RAID 0
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
RAID 1
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RAID 5
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
RAID 10
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
RAID 50
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
RAID 6
No
No
No
No
No
No
No
No
No
No
No
RAID 60
No
No
No
No
No
No
No
No
No
No
No
Read, Write, and Disk
Cache Policy
PERC
3/SC
PERC
3/DC
PERC
3/QC
PERC
4/SC
PERC
4/DC
PERC
4/DI
PERC
4e/SI
PERC
4e/DI
PERC
4e/DC
CERC ATA
100/4ch
PERC
4/IM
Cache settings
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Read Policy
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Read Ahead (Enabled)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Adaptive Read Ahead
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No Read Ahead (Disabled)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Write Policy
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Write Back (Enabled)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Write Through (Disabled)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Force Write Back (Enabled
Always)
No
No
No
No
No
No
No
No
No
No
No
Write Cache Enabled
Protected
No
No
No
No
No
No
No
No
No
No
No
Disk Cache Policy
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Cache I/O
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Direct I/O
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
- Notes and Cautions 1
- Supported Features 2
- SATA1.5/6ch Controllers 6
- Battery Tasks 10
- Connector Tasks 10
- Physical Disk Tasks 10
- Virtual Disk Tasks 11
- Virtual Disk Specifications 11
- Supported RAID Levels 12
- Enclosure Support 13
- Controller Tasks 13
- Permanently Degraded 26
- Rebuilding 27
- Physical Disks 31
- Other Disk Procedures 32
- Remove Dead Segments 35
- Prepare to Remove 35
- Initialize 36
- Rebuild 36
- Cancel Rebuild 36
- Online and Offline 37
- Revertible Hot Spare 38
- Instant Secure Erase 38
- RAID Controller Batteries 40
- Battery Delay Learn Cycle 43
- BIOS Terminology 44
- Connectors 45
- Connector Health 46
- Connector Information 47
- Connector Components 47
- Connector Properties 47
- Path Health 48
- Related Tasks 49
- Controllers 50
- RAID Controller Features 51
- Read Policy 52
- Write Policy 52
- Cache Policy 52
- Disk Cache Policy 53
- Non-RAID SCSI Controllers 54
- Firmware/Driver Versions 55
- Controller Health 55
- Controller Information 56
- Controller Components 56
- Controller Properties 56
- Set Rebuild Rate 60
- Reset Configuration 61
- Export Log 61
- Set Check Consistency Rate 67
- Set Reconstruct Rate 68
- Set Patrol Read Mode 70
- Start and Stop Patrol Read 71
- Manage Preserved Cache 72
- Manage Security Key 73
- Enclosures and Backplanes 75
- SMART Thermal Shutdown 76
- Enclosure Management 77
- Enclosure Tasks 79
- Set Asset Data 81
- EMM Properties 82
- Fan Properties 83
- Power Supply Properties 83
- Related information: 87
- Getting Started 88
- Displaying the Online Help 89
- Common Storage Tasks 89
- Understanding Hot Spares 91
- 6/I Controllers 91
- S300 Controllers 92
- Required Conditions 96
- Moving the Disks 97
- Overview 105
- Supported Controllers 106
- Supported Enclosures 107
- Storage Health 108
- Storage Component Severity 108
- Alerts or Events 109
- Related Information: 110
- Storage Properties 111
- Global Tasks 111
- Storage Controllers 112
- Storage Components 113
- What Is RAID? 114
- Concatenation 115
- RAID Level 0 (Striping) 116
- RAID Level 1 (Mirroring) 117
- RAID 5 Characteristics: 118
- RAID 6 Characteristics: 118
- RAID 50 Characteristics: 119
- RAID 60 Characteristics: 120
- RAID 10 Characteristics: 121
- No-RAID 123
- Troubleshooting 124
- Replacing a Failed Disk 125
- A Rebuild Does Not Work 127
- Nonredundant Virtual Disks 128
- Virtual Disks 132
- Creating Virtual Disks 134
- Expansion 135
- SATA1.5/2s Controllers 136
- Recommendations 137
- Virtual Disk Properties 138
- Connector 0 146
- Physical Disks Selected 146
- Span Edit 147
- Controllers 149
- Considerations for Format 150
- Virtual Disk Task: Delete 151
- Virtual Disk Task: Rename 151
- Split Mirror 152
- Unmirror 153
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