EMC AX4-5

AX4-5 Series
Hardware and Operational
Overview
January 4, 2010
This overview describes the major hardware features of AX4-5 series
storage systems.
For greater clarity, the illustrations in this document show the storage-system
chassis independent of a cabinet or deskside mounting
Topics include
 Storage-system components........................................................... 2
 Disk and filler modules.................................................................. 5
 Storage processors (SPs)................................................................. 7
 Link control cards (LCCs) .............................................................. 8
 Power/cooling modules ................................................................ 9
 Standby power supplies (SPSs)....................................................... 10
 Powerup and powerdown sequence ............................................... 11
 Status lights and indicators ............................................................ 15
1

EMC AX4-5 Specifications

General

Brand	EMC
Model	AX4-5
Category	Storage
Language	English

Summary

Storage-system components

DPE-AX Components

Describes the Disk-Processor Enclosure (DPE-AX) and its main parts.

IO Modules and Host Connectivity

Details Fibre Channel and iSCSI I/O modules for host connectivity.

Disk Array Enclosures (DAE-AX)

Explains the role and components of DAE-AXs.

Disk and filler modules

System Disks (Vault Disks)

Explains the first four disks containing vital software and their placement.

Disk Modules and Carriers

Describes individual disk drives and their plastic carriers.

Storage processors (SPs)

SP Functionality and High Availability

Details the SP as the intelligent control center and its role in redundancy.

Link control cards (LCCs)

LCC Role in DAE-AX Bus

Explains LCCs used in DAE-AXs for disk capacity expansion and bus connectivity.

Powercooling modules

Module Integration and Operation

Describes power supply and blower integration, load sharing, and failure handling.

Standby power supplies (SPSS)

SPS Functionality and Indicators

Explains SPS backup power, caching, and status lights.

Powerup and powerdown sequence

Storage System Power-Up Procedure

Details steps and verification for powering up the system.

Storage System Power-Down Procedure

Outlines the controlled procedure for shutting down the system.

Status lights and indicators

DPE-AX Front and Rear Status Lights

Describes status lights for the DPE-AX, covering both front and rear views.

DAE-AX Front and Rear Status Lights

Describes status lights for the DAE-AX, covering both front and rear views.

SPS Status Lights

Details the status lights for the Standby Power Supply (SPS).