Intel SE7520AF2 Technical Product Specification page 6

Table of Contents
3.4.3 SCSI Support......................................................................................................... 60
3.4.4 RAID Functionality ................................................................................................. 62
3.4.5 Parallel ATA (PATA) Support ................................................................................ 63
3.4.6 Serial ATA (SATA) Support ................................................................................... 64
3.4.7 Video Controller ..................................................................................................... 65
3.4.8 Network Interface Controller (NIC) ........................................................................ 67
3.4.9 USB 2.0 Support.................................................................................................... 68
3.4.10 Super I/O ............................................................................................................... 68
3.4.11 BIOS Flash ............................................................................................................ 70
3.5 Configuration and Initialization............................................................................... 70
3.5.1 Memory Space....................................................................................................... 70
3.5.2 I/O Map .................................................................................................................. 76
3.5.3 Accessing Configuration Space............................................................................. 78
3.5.4 Hardware Initialization ........................................................................................... 80
3.6 Clock Generation and Distribution ......................................................................... 81
4. Integrated Intel® RAID Controller SROMBU42E.............................................................. 83
4.1 Overview................................................................................................................ 83
4.2 Primary Integrated Intel RAID Controller SROMBU42E Features ......................... 83
4.2.1 Configuration on Disk ............................................................................................ 85
4.2.2 Array Performance Features ................................................................................. 85
4.2.3 Fault Tolerance Capabilities .................................................................................. 85
4.3 RAID Software Stack ............................................................................................. 86
4.3.1 General RAID Features ......................................................................................... 86
4.3.2 RAID Level Migration............................................................................................. 87
4.3.3 Fault Tolerant Features ......................................................................................... 87
4.3.4 Cache Options and Settings .................................................................................. 87
4.3.5 Background Tasks ................................................................................................. 88
4.3.6 Error Handling........................................................................................................ 88
4.3.7 Decoding an Audible Alarm ................................................................................... 89
4.4 Levels of RAID....................................................................................................... 89
4.4.1 RAID 0 - Data Striping ........................................................................................... 89
4.4.2 RAID 1 - Disk Mirroring/Disk Duplexing ................................................................. 90
4.4.3 RAID 5 - Data Striping with Striped Parity ............................................................. 90
4.4.4 RAID 10 - Combination of RAID 1 and RAID 0...................................................... 91
4.4.5 RAID 50 - Combination of RAID 5 and RAID 0...................................................... 91
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Intel order number C77866-003
Intel® Server Board SE7520AF2 TPS
Revision 1.2