3Com NSR-ORA V3.2 No compression is used, Amon Parameters, Now the amon parameters are queried

Models: NSR-ORA V3.2

1 79
Download 79 pages 22.38 Kb
Page 33
Image 33

Installation and Configuration

Configuration

The next query depends on the usage of an NAS filer. When you are using such an NAS filer and so answer y to this question you have to input the information described in section “Configuring NSR-ORA”.

BACKUP_COMPRESS=true false gzip bzip2

Compression of the database files is controlled via the BACKUP_COMPRESS parameter. It may take the following values:

true

Selecting true for BACKUP_COMPRESS causes the default compression mode (Lempel-Ziv) to be used.

false

No compression is used.

gzip

The GZIP mode is used for compression. In addition a compression level may be selected by setting the (hidden) COMPRESS_LEVEL parameter (see below).

bzip2

The BZIP2 mode is used for compression. In addition a compression level may be selected by setting the (hidden) COMPRESS_LEVEL para- meter (see below).

Now configure_nsrora asks you whether you want to perofrm parallel backups of the tablespaces. Answering y an additional parameter has to be set.

AMON Parameters

Now the amon parameters are queried:

AMON_MAX_LOGS

This parameter defines a threshold value for the maximum number of offline redolog files in the archive directory. When this value is reached, the next poll (see AMON_INTERVALL parameter below) will initiate a backup of these redolog files. When the offline redolog files have been backed up success- fully on external media they are deleted from the archive directory.

AMON_MIN_LOGS

You use this parameter to specify how many offline redolog files should not be backed up but should remain in the archive directory when the threshold value AMON_MAX_LOGS is reached. It is always the newest redolog files that remain in the archive directory without being backed up.

System Administrator’s Guide

U42252-J-Z915-1-76

Page 33
Image 33
3Com NSR-ORA V3.2 manual No compression is used, Amon Parameters, Now the amon parameters are queried