NEC Express5800/320Ma Guía de usuario descargar pdf (Pagina 5)

Contents

Contents v

4. Disk Storage Management 4-1

Data Fault Tolerance 4-1

Guidelines for System Disks 4-2

Using RDR for Fault Tolerance 4-2

Automatic Virtual Disk Expansion 4-3

Managing RDR Disks 4-4

Notes on Using RDR to Mirror Disks in Internal Storage 4-5

Disk Failures during Resynchronization 4-5

Write Caching 4-6

Read-load Balancing 4-6

Mirroring Dynamic Disks with RDR 4-10

Setting the Active RDR Disk (Plex) 4-10

Deleting the RDR Configuration on a Physical Disk 4-11

Removing a Physical Disk from an RDR Virtual Disk 4-12

Deporting a Physical Disk from an RDR Virtual Disk 4-13

Creating a Spare Bootable RDR Disk 4-14

Breaking a Physical Disk from an RDR Virtual Disk 4-14

Setting or Clearing the MTBF for Disks 4-15

Setting the MTBF Faultcount Limit for Disks 4-15

Booting a System with a Backup RDR Boot Disk 4-16

Reusing Data Disks 4-16

Reusing a Stored-Data Disk 4-16

Removing the RDR Configuration from a

Stored-Data Disk 4-16

Resynchronizing RDR Disks 4-17

Resynchronizing a Backup Boot RDR Disk 4-18

Recovering and Replacing RDR Disks 4-18

Verifying RDR Disks 4-19

Configuring the Priority of RDR Virtual Disk

Resynchronization 4-20

Using Volume Mirroring for Fault Tolerance 4-20

Mirrored Volume Resynchronization 4-21

Volume Resynchronization After Rebooting 4-21

Inserting or Removing More Than One Disk at a Time 4-22

ftSMC Interface for Storage Enclosures and Subsystems 4-22

Storage Enclosure Node 4-23

Slot Node 4-23

Disk Node 4-23

Sensor Nodes 4-23

EMC Attached Storage 4-24

Mirroring Disks in Your Express5800/320Ma System 4-24

Mirroring Disks in Internal Storage 4-25

Configuring and Creating RDR Disks 4-25

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