RMAN 热备份脚本

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## hot_database_backup.sh ##

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#!/bin/sh

# $Header: hot_database_backup.sh,v 1.9 2002/02/06 16:48:56 lstrub Stab $

#bcpyrght

#***************************************************************************

#ecpyrght

# ---------------------------------------------------------------------------

# hot_database_backup.sh

# ---------------------------------------------------------------------------

# This script uses Recovery Manager to take a hot (inconsistent) database

# backup. A hot backup is inconsistent because portions of the database are

# being modified and written to the disk while the backup is progressing.

# You must run your database in ARCHIVELOG mode to make hot backups. It is

# assumed that this script will be executed by user root. In order for RMAN

# to work properly we switch user (su -) to the oracle dba account before

# execution. If this script runs under a user account that has Oracle dba

# privilege, it will be executed using this user's account.

# ---------------------------------------------------------------------------

# Determine the user which is executing this script.

# ---------------------------------------------------------------------------

CUSER=`id |cut -d"(" -f2 | cut -d ")" -f1`

# ---------------------------------------------------------------------------

# Put output in <this file name>.out. Change as desired.

# Note: output directory requires write permission.

# ---------------------------------------------------------------------------

RMAN_LOG_FILE=${0}.out

# ---------------------------------------------------------------------------

# You may want to delete the output file so that backup information does

# not accumulate. If not, delete the following lines.

# ---------------------------------------------------------------------------

if [ -f "$RMAN_LOG_FILE" ]

then

rm -f "$RMAN_LOG_FILE"

# -----------------------------------------------------------------

# Initialize the log file.

# -----------------------------------------------------------------

echo >> $RMAN_LOG_FILE

chmod 666 $RMAN_LOG_FILE

# ---------------------------------------------------------------------------

# Log the start of this script.

# ---------------------------------------------------------------------------

echo Script $0 >> $RMAN_LOG_FILE

echo ==== started on `date` ==== >> $RMAN_LOG_FILE

echo >> $RMAN_LOG_FILE

# ---------------------------------------------------------------------------

# Replace /u01/app/oracle/product/10.2.0.3, below, with the Oracle home path.

# ---------------------------------------------------------------------------

ORACLE_HOME=/u01/app/oracle/product/10.2.0.3

export ORACLE_HOME

# ---------------------------------------------------------------------------

# Replace ora81, below, with the Oracle SID of the target database.

# ---------------------------------------------------------------------------

ORACLE_SID=pinnsoft

export ORACLE_SID

# ---------------------------------------------------------------------------

# Replace oracle 10g, below, with the Oracle DBA user id (account).

# ---------------------------------------------------------------------------

ORACLE_USER=oracle

export ORACLE_USER

# ---------------------------------------------------------------------------

# Set the Oracle Recovery Manager name.

# ---------------------------------------------------------------------------

RMAN=$ORACLE_HOME/bin/rman

# --------------------------------------------------------------------------

# Recovery Catalog Connect String

# --------------------------------------------------------------------------

# ---------------------------------------------------------------------------

# Print out the value of the variables set by this script.

# ---------------------------------------------------------------------------

echo >> $RMAN_LOG_FILE

echo "RMAN: $RMAN" >> $RMAN_LOG_FILE

echo "ORACLE_SID: $ORACLE_SID" >> $RMAN_LOG_FILE

echo "ORACLE_USER: $ORACLE_USER" >> $RMAN_LOG_FILE

echo "ORACLE_HOME: $ORACLE_HOME" >> $RMAN_LOG_FILE

# ---------------------------------------------------------------------------

# Print out the value of the variables set by bphdb.

# ---------------------------------------------------------------------------

#echo >> $RMAN_LOG_FILE

#echo "NB_ORA_FULL: $NB_ORA_FULL" >> $RMAN_LOG_FILE

#echo "NB_ORA_INCR: $NB_ORA_INCR" >> $RMAN_LOG_FILE

#echo "NB_ORA_CINC: $NB_ORA_CINC" >> $RMAN_LOG_FILE

#echo "NB_ORA_SERV: $NB_ORA_SERV" >> $RMAN_LOG_FILE

#echo "NB_ORA_POLICY: $NB_ORA_POLICY" >> $RMAN_LOG_FILE

# ---------------------------------------------------------------------------

# NOTE: This script assumes that the database is properly opened. If desired,

# this would be the place to verify that.

# ---------------------------------------------------------------------------

echo >> $RMAN_LOG_FILE

# ---------------------------------------------------------------------------

# If this script is executed from a NetBackup schedule, NetBackup

# sets an NB_ORA environment variable based on the schedule type.

# The NB_ORA variable is then used to dynamically set BACKUP_TYPE

# For example, when:

# schedule type is BACKUP_TYPE is

# ---------------- --------------

# Automatic Full INCREMENTAL LEVEL=0

# Automatic Differential Incremental INCREMENTAL LEVEL=1

# Automatic Cumulative Incremental INCREMENTAL LEVEL=1 CUMULATIVE

# For user initiated backups, BACKUP_TYPE defaults to incremental

# level 0 (full). To change the default for a user initiated

# backup to incremental or incremental cumulative, uncomment

# one of the following two lines.

# BACKUP_TYPE="INCREMENTAL LEVEL=1"

# BACKUP_TYPE="INCREMENTAL LEVEL=1 CUMULATIVE"

# Note that we use incremental level 0 to specify full backups.

# That is because, although they are identical in content, only

# the incremental level 0 backup can have incremental backups of

# level > 0 applied to it.

# ---------------------------------------------------------------------------

if [ "$NB_ORA_FULL" = "1" ]

then

echo "Full backup requested" >> $RMAN_LOG_FILE

BACKUP_TYPE="INCREMENTAL LEVEL=0"

elif [ "$NB_ORA_INCR" = "1" ]

then

echo "Differential incremental backup requested" >> $RMAN_LOG_FILE

BACKUP_TYPE="INCREMENTAL LEVEL=1"

elif [ "$NB_ORA_CINC" = "1" ]

then

echo "Cumulative incremental backup requested" >> $RMAN_LOG_FILE

BACKUP_TYPE="INCREMENTAL LEVEL=1 CUMULATIVE"

elif [ "$BACKUP_TYPE" = "" ]

then

echo "Default - Full backup requested" >> $RMAN_LOG_FILE

BACKUP_TYPE="INCREMENTAL LEVEL=0"

# ---------------------------------------------------------------------------

# Call Recovery Manager to initiate the backup. This example does not use a

# Recovery Catalog. If you choose to use one, replace the option 'nocatalog'

# from the rman command line below with the

# 'rcvcat <userid>/<passwd>@<tns alias>' statement.

# Note: Any environment variables needed at run time by RMAN

# must be set and exported within the switch user (su) command.

# ---------------------------------------------------------------------------

# Backs up the whole database. This backup is part of the incremental

# strategy (this means it can have incremental backups of levels > 0

# applied to it).

# We do not need to explicitly request the control file to be included

# in this backup, as it is automatically included each time file 1 of

# the system tablespace is backed up (the inference: as it is a whole

# database backup, file 1 of the system tablespace will be backed up,

# hence the controlfile will also be included automatically).

# Typically, a level 0 backup would be done at least once a week.

# The scenario assumes:

# o you are backing your database up to two tape drives

# o you want each backup set to include a maximum of 5 files

# o you wish to include offline datafiles, and read-only tablespaces,

# in the backup

# o you want the backup to continue if any files are inaccessible.

# o you are not using a Recovery Catalog

# o you are explicitly backing up the control file. Since you are

# specifying nocatalog, the controlfile backup that occurs

# automatically as the result of backing up the system file is

# not sufficient; it will not contain records for the backup that

# is currently in progress.

# o you want to archive the current log, back up all the

# archive logs using two channels, putting a maximum of 20 logs

# in a backup set, and deleting them once the backup is complete.

# Note that the format string is constructed to guarantee uniqueness and

# to enhance NetBackup for Oracle backup and restore performance.

# NOTE WHEN USING TNS ALIAS: When connecting to a database

# using a TNS alias, you must use a send command or a parms operand to

# specify environment variables. In other words, when accessing a database

# through a listener, the environment variables set at the system level are not

# visible when RMAN is running. For more information on the environment

# variables, please refer to the NetBackup for Oracle Admin. Guide.

# ---------------------------------------------------------------------------

CMD_STR="

ORACLE_HOME=$ORACLE_HOME

export ORACLE_HOME

ORACLE_SID=$ORACLE_SID

export ORACLE_SID

$RMAN nocatalog target / msglog $RMAN_LOG_FILE append << EOF

RUN {

#ALLOCATE CHANNEL ch00 TYPE DISK;

change archivelog all crosscheck;

BACKUP

$BACKUP_TYPE

SKIP INACCESSIBLE

TAG pinnsoft_hot_db_bk_level0

FILESPERSET 5

# recommended format

FORMAT '/u01/app/backup/hotbackup/pinnsoft_%U_%t'

DATABASE;

#To break backup into 3 piece

BACKUP

FILESPERSET 20

FORMAT '/u01/app/backup/hotbackup/pinnsoft_%U_%t'

ARCHIVELOG ALL DELETE INPUT;

#RELEASE CHANNEL ch00;

report obsolete;

delete noprompt obsolete;

#crosscheck backup;

#list backup summary;

}

EOF

# Initiate the command string

if [ "$CUSER" = "root" ]

then

echo "Root Command String: $CMD_STR" >> $RMAN_LOG_FILE

su - $ORACLE_USER -c "$CMD_STR" >> $RMAN_LOG_FILE

RSTAT=$?

else

echo "User Command String: $CMD_STR" >> $RMAN_LOG_FILE

/usr/bin/sh -c "$CMD_STR" >> $RMAN_LOG_FILE

RSTAT=$?

# ---------------------------------------------------------------------------

# Log the completion of this script.

# ---------------------------------------------------------------------------

if [ "$RSTAT" = "0" ]

then

LOGMSG="ended successfully"

else

LOGMSG="ended in error"

echo >> $RMAN_LOG_FILE

echo Script $0 >> $RMAN_LOG_FILE

echo ==== $LOGMSG on `date` ==== >> $RMAN_LOG_FILE

echo >> $RMAN_LOG_FILE

/usr/bin/mailx -s "RMAN Backup - PINNSOFT" jasoname@qq.com < $RMAN_LOG_FILE

exit $RSTAT