Rman level 0 copy takes 14 hrs for backing up 110 GB !!!!
Hello all,
I 'am using rman to take my backup using grid control.
The database size is around 110 GB and a full ' level 0' backup is taking around 14 hrs.
Does it take this much time??
My production is a 2 node RAC on 10.2.0.2 on Solaris 10.
And the Grid is also another Solaris 10 server with 10.2.0.2
Below is my rman configuration
using target database control file instead of recovery catalog
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 90 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/d01/%F';
CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 4;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE CHANNEL 1 DEVICE TYPE DISK FORMAT '/d01/%U' CONNECT '*';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK FORMAT '/d02/%U' CONNECT '*';
CONFIGURE CHANNEL 3 DEVICE TYPE DISK FORMAT '/d01/%U' CONNECT '*';
CONFIGURE CHANNEL 4 DEVICE TYPE DISK FORMAT '/d02/%U' CONNECT '*';
CONFIGURE MAXSETSIZE TO UNLIMITED;
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON STANDBY;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/BACKUP/RMAN/snapcf_emrep.f';Large_pool_size is around 65 MB.
TIA,
JJ
backup or copy?
The subject line contradicts the rest of your post.
And backup and copy are two entirely different things.
copy will copy the datafile, all of it.
Also, it might not be advantageous to have parallelism > the number of instances.
You now have multiple sessions hitting the same disks.
You also would need to examine progress using gv$backup_sync_io or gv$backup_async_io and gv$session_longops.
Sybrand Bakker
Senior Oracle DBA
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Hi I have taken RMAN level 0 backup and scheduled level1 previously. Now we have moved the old datafiles and backupset and wanted to start from level 0 again. So we are running the same script and it is not running in level 0 but looking for level 1. and throwing errors. Now the flash recovery area is empty but only having the archivelogs and we want to take level 0 freshly. following is the error i am getting.
RMAN> run {
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4> delete backup completed before 'SYSDATE-30' device type disk;
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6> delete archivelog until time 'SYSDATE-30';
7> release channel oem_disk_backup;
8> }
9>
using target database control file instead of recovery catalog
allocated channel: oem_disk_backup
channel oem_disk_backup: sid=564 devtype=DISK
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no copy of datafile 6 found to recover
no copy of datafile 7 found to recover
no copy of datafile 8 found to recover
no copy of datafile 9 found to recover
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channel oem_disk_backup: specifying datafile copies to recover
recovering datafile copy fno=00001 name=/disk02/orabackup/beprod/flash_recovery_area/BEPROD/datafile/o1_mf_system_3bk8d7hk_.dbf
recovering datafile copy fno=00002 name=/disk02/orabackup/beprod/flash_recovery_area/BEPROD/datafile/o1_mf_undotbs1_3bk8f0m4_.dbf
recovering datafile copy fno=00003 name=/disk02/orabackup/beprod/flash_recovery_area/BEPROD/datafile/o1_mf_sysaux_3bk8fhov_.dbf
recovering datafile copy fno=00004 name=/disk02/orabackup/beprod/flash_recovery_area/BEPROD/datafile/o1_mf_users_3bk8fyrp_.dbf
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ldd8z4_.bkp
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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 08/20/2007 21:25:04
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ORA-19505: failed to identify file "/disk02/orabackup/beprod/flash_recovery_area/BEPROD/backupset/2007_08_20/o1_mf_nnnd1_TAG20070820T010830_3dldd8z4_.bkp"
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
Recovery Manager complete.
Please help,
Thanks,
G.Take Level 0 backup using the below command and then go for the one you are executing
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Regards -
RMAN level 0 and level 1 tablespace/database relationships
If I take an incremental level 0 backup of an entire database and then take a level 0 of an individual tablespace, does an incremental level 1 backup of that tablespace reference the incremental level 0 of the tablespace or of the entire database? If I change the order of the level 0 backups, does it change the reference of the tablespace's level 1?
I guess what I'm asking is does the the level 1 incremental reference the latest level 0 regardless of whether it's for the whole database or just the tablespace or does a level 1 always reference it's own level 0?
Also, if I take a level 0 of the database Sunday night, and then a level 1 of the database every night after that as well as multiple level 1s of a tablespace throughout each day, will Tuesday night's database level 1 include all of Monday's tablespace level 1s?
I just can't seem to find oracle documentation about these relationships.Hemant K Chitale wrote:
"Database" and "Tablespace" are logical groupings for our convenience.
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