| Chapter 8 |
|
8
|
Performing System Management Tasks on Shadowed Systems
|
|
8.1
|
Upgrading the Operating System on a System Disk Shadow Set
|
|
8.2
|
Modifying Data on Individual Shadow Set Members
|
|
8.3
|
Performing Backup Operations on a Shadow Set
|
|
8.3.1
|
Restrictions on BACKUP Procedures
|
|
8.3.2
|
Using Copy Operations to Create a Backup
|
|
8.3.3
|
Using the OpenVMS Backup Utility
|
|
8.3.4
|
Using BACKUP/IMAGE on a Shadow Set
|
|
8.4
|
Crash Dumping to a Shadowed Disk
|
| Chapter 9 |
|
9
|
Performance Information for Volume Shadowing
|
|
9.1
|
Performance During Steady State
|
|
9.2
|
Performance During Copy and Merge Operations
|
|
9.2.1
|
Improving Performance for Unassisted Merge Operations
|
|
9.2.2
|
Improving Performance for Merge and Copy Operations
|
|
9.2.3
|
Effects on Performance
|
|
9.3
|
Guidelines for Managing Shadow Set Performance
|
|
9.4
|
Striping (RAID) Implementation
|
| Appendix A |
|
Appendix A
|
Messages
|
|
A.1
|
Mount Verification Messages
|
|
A.2
|
OPCOM Message
|
|
A.3
|
Shadow Server Messages
|
|
A.4
|
VOLPROC Messages
|
| Glossary |
|
Glossary
|
Glossary
|
| Index |
| Index |
| Examples |
| 3-1 |
Nodes Not Registered to Use Volume Shadowing |
| 3-2 |
MODPARAMS.DAT File |
| 3-3 |
LANCP Database Example of a Satellite Node |
| 3-4 |
DECnet Database Example of a Satellite Node |
| 4-1 |
Creating a Shadow Set |
| 4-2 |
Using the /NOASSIST Qualifier |
| 4-3 |
Using the /CLUSTER Qualifier |
| 4-4 |
Adding a Disk to an Existing Shadow Set |
| 4-5 |
Creating a Shadow Set and Adding Third Member |
| 4-6 |
Using the /CONFIRM Qualifier |
| 4-7 |
Using the /NOCOPY Qualifier |
| 4-8 |
Reconstructing Shadow Sets With /INCLUDE |
| 4-9 |
Dissolving a Shadow Set |
| 5-1 |
Item List to Create and Mount a Shadow Set |
| 5-2 |
Item List to Add a Member to a Shadow Set |
| 5-3 |
Item List to Create and Mount a Volume Set |
| 5-4 |
Removing a Member from a Shadow Set |
| 5-5 |
Dismounting and Dissolving a Shadow Set Locally |
| 5-6 |
Dismounting and Dissolving a Shadow Set Across the Cluster |
| 6-1 |
Copy Operation: Creating a New Shadow Set |
| 6-2 |
Copy Operation: Adding a Member to an Existing Shadow Set |
| 6-3 |
No Copy Operation: Rebuilding a Shadow Set |
| 6-4 |
Merge Operation: Rebuilding a Shadow Set |
| Figures |
| 1-1 |
Elements of a Shadow Set |
| 1-2 |
Shadow Sets Accessed Through the MSCP Server |
| 2-1 |
Levels of Availability |
| 2-2 |
Configuration of a Shadow Set (One System, One Adapter) |
| 2-3 |
Configuration of a Shadow Set (One System, Two Adapters) |
| 2-4 |
Configuration of a Shadow Set (OpenVMS Cluster, Dual Adapters) |
| 2-5 |
Configuration of a Shadow Set (Highly Available OpenVMS Cluster) |
| 2-6 |
Configuration of a Shadow Set (Multiple Star Couplers, Multiple HSJ Controllers) |
| 2-7 |
Configuration of a Shadowed FDDI Multiple-Site Cluster |
| 2-8 |
Configuration of a Shadowed Fibre Channel Multiple-Site Cluster |
| 3-1 |
Booting Satellite Nodes |
| 7-1 |
Application Writes to a Shadow Set |
| 7-2 |
Application Writes to a Write Bitmap |
| 7-3 |
Member Returned to the Shadow Set (Virtual Unit) |
| Tables |
| 1-1 |
Main Volume Shadowing Tasks, Operation Name, and Related Software |
| 2-1 |
Types of Failures |
| 3-1 |
Volume Shadowing Parameters |
| 3-2 |
SHADOWING Parameter Settings |
| 3-3 |
Write Bitmap System Parameters |
| 4-1 |
MOUNT Command Qualifiers (Shadowing Specific) |
| 4-2 |
Additional MOUNT Command Qualifiers (Not Shadowing Specific) |
| 4-3 |
SET DEVICE Command Qualifiers for Multiple-Site Shadow Set Members |
| 4-4 |
F$GETDVI Item Codes for Volume Shadowing |
| 5-1 |
SYS$MOUNT Item Codes |
| 5-2 |
$DISMOU Flag Options |
| 5-3 |
SYS$GETDVI Item Codes |
| 6-1 |
Information in the Storage Control Block (SCB) |
| 7-1 |
Comparison of Minicopy and Full Copy Performance |
| 7-2 |
Comparison of Minicopy and Hardware-Assist (DCD) Copy Performance |
| 9-1 |
RAID Levels |
