Hitachi 1000 manual Serviceability Features, Switch & Management Module

SVP-LAN1: For management

(Not opened to user)

LAN connection

Power control connector of multiple chassis

1000Base-TSVP-LAN0: Exclusively for maintenance Serial I/F for on site service

MAINT1 Port

PWCTRL1 Port

GLAN0-3 Port SVP-LAN Port

Figure 28. Switch & Management Module components

The Switch & Management Module contains the service processor (SVP) which controls the system and monitors the environment. A SVP is connected to the server blades or another SVP on the other Switch & Management Module (if mounting two Switch & Management Modules) through the backplane interfaced by 100M/10M Ethernet. Further, an SVP is connected to the server blades, another SVP or the I/O modules through the backplane by an I2C interface. The SVP performs tasks including system control, monitoring, and notice of a fault. The SVP is equipped with a console interface, which provides a user interface for maintaining and managing the system. Table 12 defines the components of the Switch & Management Module.

Two Switch & Management Modules can be installed on one chassis. In this case, the main SVP normally performs the SVP function. Health checking works between the main and sub-SVP as they monitor each other. If the main SVP fails, the sub-SVP takes over operation.

The Switch & Management Module houses the gigabit Ethernet switch, to which the gigabit Ethernet port of each server blade is connected over the backplane. When two Switch & Management Modules are installed, each switch operates independently.

Serviceability Features

Switch & Management Module

The Switch & Management Module is designed to control the system unit and monitor the environment. Figure 28 shows the block diagram of the module. This module and other system components are connected through I2C or other busses.

			I2C I/F
			{
			I/O Module #0,#1	To CPU Module
SerDes GB I/F	Management LAN		SAFTE#0-3 (to HDD Mod )	#0-7
From CPU	From CPU	Reserved 3ports for	For Power
module #0-7	module #0-7
		- SVP redundant	Supply Control

	- Extended switch			To Panel
	{
				Buffer	Buffer	I2C MUX
			SDRAM			I2C			I2C
			128 MB			Controller		Controller
				ECC
GB Ether	Ether Switch			Micro-	FPGA
Switch
	Ether	Ether
			processor
	Controller	Controller
				Flash		NV-	Compact
		PCI Bus				SRAM		Flash	RTC
				16MB
						1 MB		128 MB
				(OS)		ECC

40 BladeSymphony 1000 Architecture White Paper www.hitachi.com