EMC FC4500 Redundancy in Configurations

Redundancy in Configurations 1-17

About the Rackmount Disk-Array Processor Enclosure

Redundancy in Configurations

Mirrored storage-system write caching requires:

•Two SPs with equal memory of at least 128 Mbytes

•Two power supplies

•Two LCCs in the DPE and each DAE

•Disks in slots 0:0 through 0:8

•SPS (standby power supply) with a fully charged battery

The following table describes the DPE’s high-availability

configurations.

These configurations provide more redundancy, and therefore a

higher degree of system availability. The drive fan packs and SP fan

pack provide redundant cooling for all the configurations listed

above.

0123456789

Database

drives for

LIC

(0 thru 2)

Vault

drives for

caching

(0 thru 8)

DPE Rackmount

Configuration SPs LCCs

Power

supplies

Disk

modules SPSs

Maximum - HA 2

3 or more

9 or more

0 (no write caching)

2 (high-availability write caching)

Contents

Main Copyright EMC Corporation 2000, 2001. All rights reserved. Trademark Information EMC Fibre Channel Disk-Array Processor Enclos ure (DPE) Hardware Reference Regulatory Notices Manufacturers Declaration of Conformity - CE mark Page Contents Preface Chapter 1 About the Rackmount Disk-Array Processor Enclosure Chapter 2 Installing a Rackmount DPE Chapter 3 Servicing and Upgrading a DPE Appendix A Technical Specifications and Operating Limits Glossary Index Figures Page Page Page Preface Page Page Introduction Page DPE Components Enclosure Page Page Page Midplane Storage Processors (SPs) Page Link Control Cards (LCCs) ! Disk Modules Disk Drives Drive Carrier Power Supplies Standby Power Supply (SPS) Drive Fan Pack SP Fan Pack Page Redundancy in Configurations Page Requirements Site Requirements Installing a Rackmount DPE Cabling Requirements Addressing Requirements Installing a DPE in a Cabinet Installing DPEs on the Mounting Rails in the Cabinet 4. Open the DPE front door as shown below. Page 7. Close the DPE front door, as shown in Figure 2-4. Figure 2-4 Closing and Locking the Front Door B. A. Page Page Page Page A. B. Page C. B. A. D. DPE Powerup and Initialization DPE Powerdown Page Page Monitoring DPE Status Servicing and Upgrading a DPE Page Page Handling CRUs Power Issues and CRUs Page Avoiding Electrostatic Discharge (ESD) Damage Precautions When Removing, Installing, or Storing CRUs Precautions When Handling Optical Cables Replacing or Adding a Disk Module angle to the enclosure, and snapping it into the hinge openings. A. B. C. Page Replacing or Adding a Disk Module 3. Close and lock the front door as shown below. Figure 3-6 Closing and Locking the Front Door B. A. Replacing the SP Fan Pack A. B. Page Replacing an Optical GBIC B A 2. Remove the optical GBIC connector(s) from the SP as shown below. Installing an Optical GBIC Connector AB AB Removing an SP or an SP Filler Module Page Page Installing or Replacing an SP Memory Module Page 3. If you want to install the SP, continue to the next section. Installing an SP or SP Filler Module Alignment notch Installing an SP or SP Filler Module F E 7 2. At the back of the deskside DPE, gently insert the SP or filler module as shown below. B. Replacing or Adding an LCC Module Removing an LCC B. A. B. A. Installing an LCC B. A. A. B. C. D. Replacing the Drive Fan Pack Removing the Drive Fan Pack Installing the Drive Fan Pack A. B. Replacing or Adding a Power-Supply Module Removing a Power-Supply Filler Module A. B. Page 3. Remove the power-supply module, as shown in Figures 3-29 and 3-30. A. B. Installing a Power-Supply Module Page Page Page A Technical Specifications AC Power Requirements Technical Specifications and Operating Limits Size and Weight Page Safety Standards EMI Standards Fibre Channel Related Standards Operating Limits Shipping and Storage Requirements Page E F H J L M N P R S Page Page Index B C D E F G H I M O P R S T V W