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Storage Controller Module View, Architectural Overview - modular server firmware

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Intel® Modular Server System TPS 3.7.3 Storage Controller Module View System Details Figure 23. Front View of Storage Controller Module 3.7.4 Architectural Overview 3.7.4.1 Storage Controller Module Interface The Interposer SAS signals from the storage controller module (SCM) originate from the LSI* 1068 and PM8399* devices. A hardware reset line for each expander originates from each SCM. One SAS expander on the Interposer is managed by one SCM; the second expander is managed by the second SCM (if installed). An I²C bus connects the SCM(s) to the Interposer VPD SEEPROM and each expander. The SCM(s) can retrieve hardware monitor and drive backplane IDROM information from the expanders, which are connected through I²C to these devices. Disk drive status is communicated through SES pages to the expanders from the RAID stack in the SCM, and this status is exported to GPIO LED signals, one for each disk drive. One overall RAID status LED is also sent through SES and exported to a single LED. Expander firmware can be downloaded from the SCM. 3.7.4.2 Interposer Card Functionality SAS expander-1 provides connectivity to all disk drive "A" ports; SAS expander-2 provides connectivity to all disk drive "B" ports. "A" port SAS traffic originates only from SCM-1, and "B" port SAS traffic originates only from SCM-2. The SAS connection from SCM-1 to expander-2 (and SCM-2 to expander-1) is intended for high-speed controller to controller traffic only (write cache mirroring). Revision 1.7 31 Intel order number E15155-010

Section	Page
Title Page	1
Revision History	2
Table of Contents	3
List of Figures	5
List of Tables	6
1. Product Overview	8
2. System Overview	9
2.1 Introduction	9
2.2 External Chassis Features – Front	12
2.2.1 Compute Module	13
2.2.2 Storage Enclosure	13
2.2.3 I/O Cooling Module	13
2.3 External Chassis Features – Rear	14
2.3.1 Power Supply Module	14
2.3.2 I/O Slots	14
2.3.2.1 Ethernet Switch Module	14
2.3.2.2 Storage Controller Module	15
2.3.3 Chassis Management Module	15
2.3.4 Main Cooling Module	15
2.4 Internal Chassis Features	15
2.4.1 Midplane Board	17
2.4.2 Storage Interposer Board	18
2.5 Mounting and Service Features	18
2.5.1 Chassis	18
2.5.2 Rails	18
2.6 Server Management	18
2.6.1 Chassis Management Module	19
2.6.2 Compute Module Management	19
2.7 Reliability, Availability, Serviceability, Usability, Manageability (RASUM)	20
3. System Details	21
3.1 Specifications	21
3.1.1 Environmental Specifications Summary	21
3.1.2 Physical Specifications Summary	21
3.1.3 Power Specifications Summary	22
3.2 Chassis	23
3.3 Midplane Board	26
3.3.1 Mechanical Outline	26
3.3.2 3D Renderings	27
3.4 Compute Module	28
3.4.1 Introduction	28
3.4.2 Drawings	29
3.5 Chassis Management Module	29
3.5.1 Introduction	29
3.5.1.1 CMM	29
3.5.1.2 CMM2	29
3.5.2 Mechanical Outline	31
3.5.3 Block Diagram	32
3.5.3.1 CMM	32
3.5.3.2 CMM2	32
3.5.4 Drawings	33
3.5.5 Architectural Overview	33
3.6 Ethernet Switch Module	34
3.6.1 Introduction	34
3.6.2 Mechanical Outline	35
3.6.3 Block Diagram	36
3.6.4 Architectural Overview	36
3.7 Storage Controller Module	37
3.7.1 Storage Subsystem Introduction	37
3.7.2 Mechanical Outline	37
3.7.3 Storage Controller Module View	38
3.7.4 Architectural Overview	38
3.7.4.1 Storage Controller Module Interface	38
3.7.4.2 Interposer Card Functionality	38
3.7.4.3 Drive Backplane Interface	39
3.8 Power Supply Module	39
3.9 Jumpers and LEDs	40
4. Product Regulatory Requirements	41
4.1 Product Regulatory Compliance	41
4.1.1 Product Safety Compliance	41
4.1.2 Product EMC Compliance - Class A Compliance	41
4.1.3 Product Ecology Compliance	41
4.1.4 Certifications/Registrations/Declarations	42
4.2 Product Regulatory Compliance Markings	42
4.3 Regulated Specified Components	47
4.4 Electromagnetic Compatibility Notices	48
4.4.1 FCC Verification Statement (USA)	48
4.4.2 ICES-003 (Canada)	49
4.4.3 Europe (CE Declaration of Conformity)	49
4.4.4 VCCI (Japan)	50
4.4.5 BSMI (Taiwan)	50
Glossary	52

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Intel® Modular Server System TPS

System Details

Revision 1.7

Intel order number E15155-010

3.7.3

Storage Controller Module View

Figure 23. Front View of Storage Controller Module

3.7.4

Architectural Overview

3.7.4.1

Storage Controller Module Interface

The Interposer SAS signals from the storage controller module (SCM) originate from the LSI*

1068 and PM8399* devices.

A hardware reset line for each expander originates from each SCM. One SAS expander on the

Interposer is managed by one SCM; the second expander is managed by the second SCM

(if installed).

An I²C bus connects the SCM(s) to the Interposer VPD SEEPROM and each expander. The

SCM(s) can retrieve hardware monitor and drive backplane IDROM information from the

expanders, which are connected through I²C to these devices.

Disk drive status is communicated through SES pages to the expanders from the RAID stack in

the SCM, and this status is exported to GPIO LED signals, one for each disk drive. One overall

RAID status LED is also sent through SES and exported to a single LED.

Expander firmware can be downloaded from the SCM.

3.7.4.2

Interposer Card Functionality

SAS expander-1 provides connectivity to all disk drive “A” ports; SAS expander-2 provides

connectivity to all disk drive “B” ports. “A” port SAS traffic originates only from SCM-1, and “B”

port SAS traffic originates only from SCM-2. The SAS connection from SCM-1 to expander-2

(and SCM-2 to expander-1) is intended for high-speed controller to controller traffic only (write

cache mirroring).