Database Backups Series - Part 1

Most challenging area for any backup tool administrator is Database backups.
Here we are going to discuss most of the database backups like oracle, sql,db2,sap,exchange  starting with oracle I am going to post my understandings on DB backups .

Example of simple rman cold backup in oracle DB:

SQL> CONNECT sys AS SYSDBA

SQL> STARTUP MOUNT;
ORACLE instance started.
Total System Global Area  1.007E+09 bytes
Fixed Size                    65484 bytes
Variable Size              86917120 bytes
Database Buffers          919568384 bytes
Redo Buffers                  73728 bytes
Database mounted.
SQL>


C:\Documents and Settings\Administrator>rman target sys/xxxxx@dporacle nocatalo
g
Recovery Manager: Release 8.1.5.0.0 - Production
RMAN-06005: connected to target database: DPORACLE (DBID=2406364181)
RMAN-06009: using target database controlfile instead of recovery catalog


RMAN> run {
2>   allocate channel t1 type disk;
3>   backup
4>     format '%d_t%t_s%s_p%p'
5>       (database);
6>    release channel t1;
7> }
RMAN-03022: compiling command: allocate
RMAN-03023: executing command: allocate
RMAN-08030: allocated channel: t1
RMAN-08500: channel t1: sid=12 devtype=DISK
RMAN-03022: compiling command: backup
RMAN-03023: executing command: backup
RMAN-08008: channel t1: starting full datafile backupset
RMAN-08502: set_count=2 set_stamp=824918367 creation_time=31-AUG-13
RMAN-08010: channel t1: specifying datafile(s) in backupset
RMAN-08522: input datafile fno=00001 name=F:\ORACLE\ORADATA\DPORACLE\SYSTEM01.DB
F
RMAN-08011: including current controlfile in backupset
RMAN-08522: input datafile fno=00003 name=F:\ORACLE\ORADATA\DPORACLE\RBS01.DBF
RMAN-08522: input datafile fno=00005 name=F:\ORACLE\ORADATA\DPORACLE\OEMREP01.DB
F
RMAN-08522: input datafile fno=00002 name=F:\ORACLE\ORADATA\DPORACLE\USERS01.DBF
RMAN-08522: input datafile fno=00004 name=F:\ORACLE\ORADATA\DPORACLE\TEMP01.DBF
RMAN-08522: input datafile fno=00006 name=F:\ORACLE\ORADATA\DPORACLE\INDX01.DBF
RMAN-08013: channel t1: piece 1 created
RMAN-08503: piece handle=DPORACLE_T824918367_S2_P1 comment=NONE
RMAN-08525: backup set complete, elapsed time: 00:01:10
RMAN-03022: compiling command: release
RMAN-03023: executing command: release
RMAN-08031: released channel: t1
RMAN> list backup;
RMAN-03022: compiling command: list
List of Backup Sets
Key     Recid      Stamp      LV Set Stamp  Set Count  Completion Time
------- ---------- ---------- -- ---------- ---------- ----------------------
1       1          824918432  0  824918367  2          31-AUG-13
    List of Backup Pieces
    Key     Pc# Cp# Status      Completion Time        Piece Name
    ------- --- --- ----------- ---------------------- ------------------------
    1       1   1   AVAILABLE   31-AUG-13              DPORACLE_T824918367_S2_P1

    List of Datafiles Included
    File Name                                  LV Type Ckp SCN    Ckp Time
    ---- ------------------------------------- -- ---- ---------- -------------
    1    F:\ORACLE\ORADATA\DPORACLE\SYSTEM01.DBF 0  Full 138066     31-AUG-13
    2    F:\ORACLE\ORADATA\DPORACLE\USERS01.DBF 0  Full 138066     31-AUG-13
    3    F:\ORACLE\ORADATA\DPORACLE\RBS01.DBF  0  Full 138066     31-AUG-13
    4    F:\ORACLE\ORADATA\DPORACLE\TEMP01.DBF 0  Full 138066     31-AUG-13
    5    F:\ORACLE\ORADATA\DPORACLE\OEMREP01.DBF 0  Full 138066     31-AUG-13
    6    F:\ORACLE\ORADATA\DPORACLE\INDX01.DBF 0  Full 138066     31-AUG-13
RMAN>