MSI X2 User Guide - Page 100

Introduction to Integrated RAID

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MS-9273 Server 1. Introduction to Integrated RAID This section provides an overview of the LSI Logic Integrated RAID solution for LSI Logic SAS controllers, its features, and its benefits. The LSI Logic Integrated RAID solution provides cost benefits for the server or workstation market where the extra performance, storage capacity, and/or redundancy of a RAID configuration are required. The two components of Integrated RAID are: Integrated Mirroring (IM), which provides features of RAID 1 and RAID 1E (RAID 1 Enhanced). RAID 1E is also called Integrated Mirroring Enhanced (IME) Integrated Striping (IS), which provides features of RAID 0 By simplifying the IM and IS configuration options and by providing firmware support in its host adapters, LSI Logic can offer the Integrated RAID solution at a lower cost than a hardware RAID implementation. Fusion-MPT™ firmware supports IM and IS volumes. You can configure IM and IS volumes together on the same LSI Logic SAS controller. Integrated RAID Benefits and Features Low cost RAID volume creation meets the needs of most internal RAID installations Easy to use - installation and configuration are not complex System can boot from an IM, IME, or IS volume No special OS-specific software required High reliability and data integrity - Non-volatile write journaling - Physical disks not visible to OS or to application software Low host CPU and PCI bus utilization Fusion-MPT architecture provides processing power - Shared memory architecture minimizes external memory requests - Functionality is contained in device hardware and firmware B-2

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B-2
MS-9273 Server
This section provides an overview of the LSI Logic Integrated RAID solution for LSI
Logic SAS controllers, its features, and its benefits.
The LSI Logic Integrated RAID solution provides cost benefits for the server or
workstation market where the extra performance, storage capacity, and/or redun-
dancy of a RAID configuration are required. The two components of Integrated RAID
are:
Integrated Mirroring
(IM), which provides features of RAID 1 and RAID 1E
(RAID 1 Enhanced). RAID 1E is also called
Integrated Mirroring Enhanced
(IME)
Integrated Striping
(IS), which provides features of RAID 0
By simplifying the IM and IS configuration options and by providing firmware support
in its host adapters, LSI Logic can offer the Integrated RAID solution at a lower cost
than a hardware RAID implementation.
Fusion-MPT
firmware supports IM and IS volumes. You can configure IM and IS
volumes together on the same LSI Logic SAS controller.
Integrated RAID Benefits and Features
Low cost RAID volume creation meets the needs of most internal RAID instal-
lations
Easy to use - installation and configuration are not complex
System can boot from an IM, IME, or IS volume
No special OS-specific software required
High reliability and data integrity
Non-volatile write journaling
Physical disks not visible to OS or to application software
Low host CPU and PCI bus utilization
Fusion-MPT architecture provides processing power
Shared memory architecture minimizes external memory requests
Functionality is contained in device hardware and firmware
1. Introduction to Integrated RAID