Intel ZT 4901 manual Contents

					Contents
Contents
1	Document Organization				9
2	Introduction		..................................................................................................................................		11
	2.1	Terminology			11
	2.2 High Availability Hardware Approach				14
		2.2.1	Processor Boards		15
		2.2.2	Bridge Mezzanine		16
		2.2.3	Backplane		17
	2.3	High-Availability Software Approach			18
		2.3.1	Host Application		18
		2.3.2	System Management		19
		2.3.3	Backplane Device Drivers		20
3	Host Application Software				21
	3.1 Goals of the Host Application				21
		3.1.1	Serviceability		21
		3.1.2	Portability	...............................................................................................................	21
		3.1.3	Redundancy		21
	3.2	Division of Labor			22
	3.3	Development Issues			23
		3.3.1	Redundancy		23
		3.3.2	Graceful Switchover		24
		3.3.3	Hardened Applications		24
		3.3.4	Code Modularity		24
4	System Management				25
	4.1	Redundant Host API			25
		4.1.1	IPMI API		25
		4.1.2	Hot Swap API		26
			4.1.2.1	Slot Control API	26
	4.2 Baseboard Management Controller Firmware Enhancements				26
		4.2.1	Fault Configuration		26
		4.2.2	Isolation Strategies		27
		4.2.3 IPMI RH Channel Commands			28
			4.2.3.1	RH Channel Enabled	28
			4.2.3.2 RH Channel Get RH BMC Address		28
5	High Availability CompactPCI Device Drivers				31
	5.1	Device Driver Design			31
		5.1.1	Device Driver States		32
			5.1.1.1	Initialization	32
			5.1.1.2	Quiesced	32
			5.1.1.3	Activation	32
		5.1.2	Adding High-Availability Functionality		33
			5.1.2.1	Add Device	34
			5.1.2.2	Resume Operations	34
			5.1.2.3	Suspend Operations	35

High Availability Software for the Intel® NetStructureTM ZT 4901 Technical Product Specification 3