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ASUS PCI-DA2100/PCI-DA2200 User’s Manual
Chapter 3 Functional Description
The advantages of RAID are: Availability, Capacity and Performance.
Choosing the right RAID level and drive failure management can
increase Availability, subsequently increasing Performance and
Capacity. The ASUS PCI-DA2100/-DA2200 RAID controller provides
complete RAID functionality and enhanced drive failure
management.
3.1 RAID Management
RAID stands for Redundant Array of Independent Drives. The
advantages of using a RAID storage subsystem are:
•
Provides disk spanning by weaving all connected drives into one
single volume.
•
Increases disk access speed by breaking data into several blocks
when reading/writing to several drives in parallel. With RAID,
storage speed increases as more drives are added.
•
Provides fault-tolerance by mirroring or parity operation.
What are the RAID levels?
RAID
Level
Description
Minimum
Drives
Data
Availability
Performance
Sequential
Performance
Random
NRAID
Non-RAID
1
Drive
Drive
RAID 0
Disk Striping
N
==NRAID
R: Highest
W: Highest
R: High
W: Highest
RAID 1
(0+1)
Mirroring Plus
Striping (if N>1)
N+1
>>NRAID
==RAID 5
R: High
W: Medium
R: Medium
W: Low
RAID 3
Striping with Parity
on dedicated disk
N+1
>>NRAID
==RAID 5
R: High
W: Medium
R: Medium
W: Low
RAID 5
Striping with
interspersed parity
N+1
>>NRAID
==RAID 5
R: High
W: Medium
R: High
W: Low
Содержание PCI-DA2200
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Страница 37: ...3 37 ASUS PCI DA2100 PCI DA2200 User s Manual From the Partition menu select Extend Volume Set ...
Страница 40: ...3 40 ASUS PCI DA2100 PCI DA2200 User s Manual Drive E now has a capacity just under 1800MB ...
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Страница 88: ...8 88 ASUS PCI DA2100 PCI DA2200 User s Manual Choose the SCSI ID you wish to map then press Enter ...
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Страница 184: ...Appendix B 184 ASUS PCI DA2100 PCI DA2200 User s Manual This page is left intentionally blank ...
Страница 188: ...Appendix D 188 ASUS PCI DA2100 PCI DA2200 User s Manual This page is left intentionally blank ...
Страница 208: ...Index ASUS PCI DA2100 PCI DA2200 User s Manual 208 This page is left intentionally blank ...
Страница 209: ...GUI RAID Manager For ASUS Disk Array Controllers User s Guide Revision 1 5 ...
Страница 226: ...ASUS GUI RAID Manager Introduction 1 3 Feature Highlights 1 11 ...