IBM DCS9550 1S1 Interfaces, SCM I/O Module Specification, Drive Carrier Module Specification

Introduction

• EMC EN55022 (CISPR - A), FCC A

1.4.7Interfaces

Drive support See drive carrier specification

Attachment 1 FCAL loop of 16 drives

Passive Backplane with 1 or 2 Loop Resiliency Circuit (SCM) I/O Modules.

Host Port: FC-AL	Maximum external cable length: see
SFP - SFP cables	manufacturer’s specification
Expansion Port: SFP to SFP cables

1.4.8SCM I/O Module Specification

Speed	1.5Gb/s internal to each drive, 1Gb/s or 2Gb/s external
	• Creates connections to a single loop of 16 drives
	• 1 External FC loop with two SFP connections
Mounting	Rear, single bays 3 and/or 4 (see Figure 1–3)
Connectors	• 2 x Expansion Ports: SFP connector
	• 2 x Host Ports: SFP connector (2 per port)
LED Functions
FC Host Port 0 Signal	– Green: On: Incoming FC signal is GOOD
Good	– Off: no connection or incorrect connection
	– Flashing: Invalid SFP connection
FC Host Port 1 Signal	– Green: On: Incoming FC signal is GOOD
Good	– Off: no connection or incorrect connection
	– Flashing: Invalid SFP connection
Router Status	– Green: On: Storage Router Device Ready
	– Off: Storage Router Device not ready or defective
ESI/SCM Module Fault	– Amber: On: Fault present (also On when booting)
	– Off: successful controller initialization
Power Dissipation	20W max.

1.4.9Drive Carrier Module Specification

Please contact your supplier for details of approved drives.

Important Operating the DCS9550 1S1 Storage Expansion Unit with non-approved drives may invalidate the

warranty.
Module Dimensions	Height 29.1mm Width 106.55mm Depth 44 mm
Weight	0.98kg (1.0” 36Gb drive)
Transition card	mounting locations for ATA - SATA drives with transition card attached
Operating Temperature	5° C to 40° C (when installed in an RS-1602 system enclosure with dual Power
	Supply/Cooling Modules)
Power Dissipation	17 Watts maximum

12 IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide