Tivoli Storage Manager for Windows: Administrator's Reference

MIRRORREAD

Specifies how mirrored volumes are to be accessed when the server reads a recovery log or database page during normal processing. The defaults are:

mirrorread log normal
mirrorread db normal

Syntax

>>-MIRRORRead--+-LOG-+--+-Normal-+-----------------------------><
               '-DB--'  '-Verify-'
 
 

Parameters

LOG
Specifies that this is the mode to be used for reading recovery log pages.

DB
Specifies that this is the mode to be used for reading database pages.

Normal
Specifies only one mirrored volume is read to obtain the desired page. This is the default.

Verify
Specifies that the server read all mirror volumes for a page every time a recovery log or database page is read. If an invalid page is encountered on a mirror volume, it is automatically re-synchronized with valid contents from another mirror volume. This mode decreases server performance since each mirror volume for the page is accessed on every read.

Examples

Specify that the server read all mirror volumes for a page every time a recovery log or database page is read:

mirrorread log verify
mirrorread db verify


[ Top of Page | Previous Page | Next Page | Table of Contents | Index ]