Re: RMAN backups of SAP database
Date: Mon, 24 Feb 2020 10:13:20 -0700
Message-ID: <CAJzM94C=uEOspV0T6ds5AFEn6+S6dx6hG+rnmH9B1H1A+tCiPg_at_mail.gmail.com>
Thanks everyone for you suggestions and comments. I can tell you they are
definitely using the version 7 style of backup where they "alter tablespace
<tablespace_name> begin backup".
Here are the RMAN configuration and backup script they are using. I'm
trying to see if they still have the rman backup log from their last
attempt.
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 4 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
RUN
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; #
default
CONFIGURE DEVICE TYPE DISK PARALLELISM 3 BACKUP TYPE TO BACKUPSET;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT
"/backup_new/Backups/dgcs064/DB01/rman/full_ol_%t_s%s_s%p";
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'MEDIUM' AS OF RELEASE 'DEFAULT' OPTIMIZE
FOR LOAD TRUE;
CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 1 TIMES TO DISK;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO
'/oracle/DB01/112_64/dbs/snapcf_DB01.f'; # default
{
set command id to 'ORCLOnlineBackupFull';
ALLOCATE CHANNEL c1 DEVICE TYPE disk;
ALLOCATE CHANNEL c2 DEVICE TYPE disk;
ALLOCATE CHANNEL c3 DEVICE TYPE disk;
ALLOCATE CHANNEL c4 DEVICE TYPE disk;
backup AS BACKUPSET full database tag ORCL_FULL format
'/backup_new/XXX_SAP_Backups/XXX/rman/XXX_%d_%T_%s_%p_FULL
' plus archivelog ;
backup tag ORCL_CONTROL current controlfile format
'/backup_new/XXX_Backups/XXX/rman/%d_%T_%s_%p_CONTROL'
;
DELETE NOPROMPT OBSOLETE;
release channel c1; release channel c2; release channel c3; release channel c4;
}
Backup log:
Running: online_backup_disk.ksh on xxxxxxxxxxxxx
AS: oraXXX At: 20:00:02 on 02/15/2020
backup processes = 0
Starting RMAN...
Recovery Manager: Release 11.2.0.4.0 - Production on Sat Feb 15 20:00:02 2020
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: XXX (DBID=3807154456) connected to recovery catalog database
RMAN> RUN
2> { 3> set command id to 'ORCLOnlineBackupFull'; 4> ALLOCATE CHANNEL c1 DEVICE TYPE disk; 5> ALLOCATE CHANNEL c2 DEVICE TYPE disk; 6> ALLOCATE CHANNEL c3 DEVICE TYPE disk; 7> ALLOCATE CHANNEL c4 DEVICE TYPE disk; 8> backup AS BACKUPSET full database tag ORCL_FULL format9> backup tag ORCL_CONTROL current controlfile format
'/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/%d_%T_%s_%p_FU
LL' plus archivelog ;
'/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/%d_%T_%s_%p_CONTRO
L'; 10> DELETE NOPROMPT OBSOLETE; 11> release channel c1; 12> release channel c2; 13> release channel c3; 14> release channel c4; 15>
16> }
17>
executing command: SET COMMAND ID
allocated channel: c1
channel c1: SID=21 device type=DISK
allocated channel: c2
channel c2: SID=85 device type=DISK
allocated channel: c3
channel c3: SID=15 device type=DISK
allocated channel: c4
channel c4: SID=51 device type=DISK
Starting backup at 15-FEB-20
current log archived
channel c1: starting archived log backup set
channel c1: specifying archived log(s) in backup set
input archived log thread=1 sequence=37962 RECID=18943 STAMP=1032307471 input archived log thread=1 sequence=37963 RECID=18944 STAMP=1032327553 input archived log thread=1 sequence=37964 RECID=18945 STAMP=1032355400 channel c1: starting piece 1 at 15-FEB-20channel c2: starting archived log backup set channel c2: specifying archived log(s) in backup set
input archived log thread=1 sequence=37965 RECID=18946 STAMP=1032382820 input archived log thread=1 sequence=37966 RECID=18947 STAMP=1032393884 input archived log thread=1 sequence=37967 RECID=18948 STAMP=1032415345 channel c2: starting piece 1 at 15-FEB-20channel c3: starting archived log backup set channel c3: specifying archived log(s) in backup set
input archived log thread=1 sequence=37968 RECID=18949 STAMP=1032420919 input archived log thread=1 sequence=37969 RECID=18950 STAMP=1032426942 input archived log thread=1 sequence=37970 RECID=18951 STAMP=1032433588 channel c3: starting piece 1 at 15-FEB-20channel c4: starting archived log backup set channel c4: specifying archived log(s) in backup set
input archived log thread=1 sequence=37971 RECID=18952 STAMP=1032438208 input archived log thread=1 sequence=37972 RECID=18953 STAMP=1032458451 input archived log thread=1 sequence=37973 RECID=18954 STAMP=1032466012channel c4: starting piece 1 at 15-FEB-20 channel c1: finished piece 1 at 15-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_15/o1_mf_annnn_TAG20200215T200656_h4jmv1t3_.bkp
tag=TAG20200215T 200656comment=NONE
channel c1: backup set complete, elapsed time: 00:00:10 channel c2: finished piece 1 at 15-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_15/o1_mf_annnn_TAG20200215T200656_h4jmv1vz_.bkp
tag=TAG20200215T 200656comment=NONE
channel c2: backup set complete, elapsed time: 00:00:10 channel c3: finished piece 1 at 15-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_15/o1_mf_annnn_TAG20200215T200656_h4jmv2lp_.bkp
tag=TAG20200215T 200656comment=NONE
channel c3: backup set complete, elapsed time: 00:00:09 channel c4: finished piece 1 at 15-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_15/o1_mf_annnn_TAG20200215T200656_h4jmv4w5_.bkp
tag=TAG20200215T 200656comment=NONE
channel c4: backup set complete, elapsed time: 00:00:07 Finished backup at 15-FEB-20
Starting backup at 15-FEB-20
channel c1: starting full datafile backup set
channel c1: specifying datafile(s) in backup set
input datafile file number=00008 name=/oracle/XXX/yyyyyyy5/sr3_5/sr3.data5
input datafile file number=00025
name=/oracle/XXX/yyyyyyy2/sr3700_1/sr3700.data1
input datafile file number=00034 name=/oracle/XXX/yyyyyyy4/sr3_25/sr3.data25
input datafile file number=00002
name=/oracle/XXX/yyyyyyy1/sysaux_1/sysaux.data1
input datafile file number=00003 name=/oracle/XXX/yyyyyyy1/undo_1/undo.data1
input datafile file number=00001
name=/oracle/XXX/yyyyyyy1/system_1/system.data1
input datafile file number=00037
name=/oracle/XXX/yyyyyyy1/system_2/system.data2
input datafile file number=00015 name=/oracle/XXX/yyyyyyy2/sr3_12/sr3.data12
channel c1: starting piece 1 at 15-FEB-20 channel c2: starting full datafile backup set channel c2: specifying datafile(s) in backup set input datafile file number=00035 name=/oracle/XXX/yyyyyyy5/sr3_26/sr3.data26input datafile file number=00031 name=/oracle/XXX/yyyyyyy3/sr3_22/sr3.data22 input datafile file number=00029
name=/oracle/XXX/yyyyyyy2/sr3usr_1/sr3usr.data1 input datafile file number=00026
name=/oracle/XXX/yyyyyyy2/sr3700_2/sr3700.data2 input datafile file number=00030
name=/oracle/XXX/yyyyyyy2/vertex/vertex.data1 input datafile file number=00027
name=/oracle/XXX/yyyyyyy2/sr3fact_1/sr3fact.data1 input datafile file number=00028
name=/oracle/XXX/yyyyyyy2/sr3ods_1/sr3ods.data1
input datafile file number=00036 name=/oracle/XXX/yyyyyyy5/sr3_27/sr3.data27 input datafile file number=00032 name=/oracle/XXX/yyyyyyy5/sr3_23/sr3.data23 input datafile file number=00033 name=/oracle/XXX/yyyyyyy5/sr3_24/sr3.data24 channel c2: starting piece 1 at 15-FEB-20channel c3: starting full datafile backup set channel c3: specifying datafile(s) in backup set
input datafile file number=00013 name=/oracle/XXX/yyyyyyy5/sr3_10/sr3.data10 input datafile file number=00004 name=/oracle/XXX/yyyyyyy1/sr3_1/sr3.data1 input datafile file number=00005 name=/oracle/XXX/yyyyyyy2/sr3_2/sr3.data2 input datafile file number=00007 name=/oracle/XXX/yyyyyyy4/sr3_4/sr3.data4 channel c3: starting piece 1 at 15-FEB-20channel c4: starting full datafile backup set channel c4: specifying datafile(s) in backup set
input datafile file number=00018 name=/oracle/XXX/yyyyyyy5/sr3_15/sr3.data15 input datafile file number=00009 name=/oracle/XXX/yyyyyyy1/sr3_6/sr3.data6 input datafile file number=00006 name=/oracle/XXX/yyyyyyy3/sr3_3/sr3.data3 input datafile file number=00010 name=/oracle/XXX/yyyyyyy2/sr3_7/sr3.data7channel c4: starting piece 1 at 15-FEB-20 channel c3: finished piece 1 at 16-FEB-20 piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200215_35698_1_FULL tag=ORCL_FULL comment=NONE
channel c3: backup set complete, elapsed time: 11:02:29 channel c3: starting full datafile backup set channel c3: specifying datafile(s) in backup set
input datafile file number=00023 name=/oracle/XXX/yyyyyyy5/sr3_20/sr3.data20 input datafile file number=00012 name=/oracle/XXX/yyyyyyy4/sr3_9/sr3.data9 input datafile file number=00014 name=/oracle/XXX/yyyyyyy1/sr3_11/sr3.data11 input datafile file number=00011 name=/oracle/XXX/yyyyyyy3/sr3_8/sr3.data8channel c3: starting piece 1 at 16-FEB-20 channel c4: finished piece 1 at 16-FEB-20 piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200215_35699_1_FULL tag=ORCL_FULL comment=NONE
channel c4: backup set complete, elapsed time: 11:08:38 channel c4: starting full datafile backup set channel c4: specifying datafile(s) in backup set
input datafile file number=00017 name=/oracle/XXX/yyyyyyy4/sr3_14/sr3.data14 input datafile file number=00019 name=/oracle/XXX/yyyyyyy1/sr3_16/sr3.data16 input datafile file number=00016 name=/oracle/XXX/yyyyyyy3/sr3_13/sr3.data13 input datafile file number=00020 name=/oracle/XXX/yyyyyyy2/sr3_17/sr3.data17channel c4: starting piece 1 at 16-FEB-20 channel c1: finished piece 1 at 16-FEB-20 piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200215_35696_1_FULL tag=ORCL_FULL comment=NONE
channel c1: backup set complete, elapsed time: 20:00:10 channel c1: starting full datafile backup set channel c1: specifying datafile(s) in backup set
input datafile file number=00022 name=/oracle/XXX/yyyyyyy4/sr3_19/sr3.data19 input datafile file number=00024 name=/oracle/XXX/yyyyyyy1/sr3_21/sr3.data21 input datafile file number=00021 name=/oracle/XXX/yyyyyyy3/sr3_18/sr3.data18channel c1: starting piece 1 at 16-FEB-20 channel c2: finished piece 1 at 16-FEB-20 piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200215_35697_1_FULL tag=ORCL_FULL comment=NONE
channel c2: backup set complete, elapsed time: 20:19:31
channel c2: starting full datafile backup set
channel c2: specifying datafile(s) in backup set
including current control file in backup set
channel c2: starting piece 1 at 16-FEB-20
channel c2: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35703_1_FULL
tag=ORCL_FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:35
channel c2: starting full datafile backup set
channel c2: specifying datafile(s) in backup set
including current SPFILE in backup set
channel c2: starting piece 1 at 16-FEB-20
channel c2: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35704_1_FULL
tag=ORCL_FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:45
channel c3: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35700_1_FULL
tag=ORCL_FULL comment=NONE
channel c3: backup set complete, elapsed time: 09:34:04
channel c4: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35701_1_FULL
tag=ORCL_FULL comment=NONE
channel c4: backup set complete, elapsed time: 09:33:36
channel c1: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35702_1_FULL
tag=ORCL_FULL comment=NONE
channel c1: backup set complete, elapsed time: 02:54:09 Finished backup at 16-FEB-20
Starting backup at 16-FEB-20
current log archived
channel c1: starting archived log backup set
channel c1: specifying archived log(s) in backup set
input archived log thread=1 sequence=37974 RECID=18955 STAMP=1032496773
channel c1: starting piece 1 at 16-FEB-20 channel c2: starting archived log backup set channel c2: specifying archived log(s) in backup setinput archived log thread=1 sequence=37975 RECID=18956 STAMP=1032532861
channel c2: starting piece 1 at 16-FEB-20 channel c3: starting archived log backup set channel c3: specifying archived log(s) in backup setinput archived log thread=1 sequence=37976 RECID=18957 STAMP=1032548784 channel c3: starting piece 1 at 16-FEB-20 channel c1: finished piece 1 at 16-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_16/o1_mf_annnn_TAG20200216T192139_h4m5l6cj_.bkp
tag=TAG20200216T 192139comment=NONE
channel c1: backup set complete, elapsed time: 00:00:03 channel c2: finished piece 1 at 16-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_16/o1_mf_annnn_TAG20200216T192139_h4m5l6f5_.bkp
tag=TAG20200216T 192139comment=NONE
channel c2: backup set complete, elapsed time: 00:00:03 channel c3: finished piece 1 at 16-FEB-20 piece
handle=/oracle/XXX/oraflash/XXX/backupset/2020_02_16/o1_mf_annnn_TAG20200216T192139_h4m5l7sx_.bkp
tag=TAG20200216T 192139comment=NONE
channel c3: backup set complete, elapsed time: 00:00:03 Finished backup at 16-FEB-20
Starting backup at 16-FEB-20
channel c1: starting full datafile backup set
channel c1: specifying datafile(s) in backup set
including current control file in backup set
channel c1: starting piece 1 at 16-FEB-20
channel c1: finished piece 1 at 16-FEB-20
piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200216_35708_1_CONTROL
tag=ORCL_CONTROL comment=NONE
channel c1: backup set complete, elapsed time: 00:00:01
Finished backup at 16-FEB-20
RMAN retention policy will be applied to the command RMAN retention policy is set to recovery window of 4 days Deleting the following obsolete backups and copies:
Type Key Completion Time Filename/Handle -------------------- ------ ------------------ -------------------- Control File Copy 24619 22-FEB-18 /oracle/XXX/YYYreorg/sexwtcxc/cntrlXXX.old Control File Copy 24620 22-FEB-18 /oracle/XXX/YYYreorg/sexwtcxc/cntrlXXX.new Control File Copy 24621 22-FEB-18 /oracle/XXX/YYYreorg/sexwtnsl/cntrlXXX.old Control File Copy 24622 22-FEB-18 /oracle/XXX/YYYreorg/sexwtnsl/cntrlXXX.new Control File Copy 24623 22-FEB-18 /oracle/XXX/YYYreorg/sexwtthh/cntrlXXX.old Control File Copy 24624 22-FEB-18 /oracle/XXX/YYYreorg/sexwtthh/cntrlXXX.new Control File Copy 24625 22-FEB-18 /oracle/XXX/YYYreorg/sexwttjx/cntrlXXX.old Control File Copy 24626 22-FEB-18 /oracle/XXX/YYYreorg/sexwttjx/cntrlXXX.new Control File Copy 24627 22-FEB-18 /oracle/XXX/YYYreorg/sexwuasu/cntrlXXX.old Control File Copy 24628 22-FEB-18 /oracle/XXX/YYYreorg/sexwuasu/cntrlXXX.new Control File Copy 24629 23-FEB-18 /oracle/XXX/YYYreorg/sexwuqtu/cntrlXXX.old Control File Copy 24630 23-FEB-18 /oracle/XXX/YYYreorg/sexwuqtu/cntrlXXX.new Control File Copy 24631 08-MAR-18 /oracle/XXX/YYYreorg/sexzjthw/cntrlXXX.old Control File Copy 24632 08-MAR-18 /oracle/XXX/YYYreorg/sexzjthw/cntrlXXX.new Control File Copy 24633 11-MAY-18 /tmp/control01.ctl Control File Copy 24634 14-MAY-18 /oracle/XXX/112_64/dbs/snapcf_XXX.f Control File Copy 24635 22-APR-19 /oracle/XXX/YYYreorg/sfaywtzs/cntrlXXX.old Control File Copy 24636 22-APR-19 /oracle/XXX/YYYreorg/sfaywtzs/cntrlXXX.new Control File Copy 24637 22-APR-19 /oracle/XXX/YYYreorg/sfaywukz/cntrlXXX.old Control File Copy 24638 22-APR-19 /oracle/XXX/YYYreorg/sfaywukz/cntrlXXX.new Control File Copy 24639 26-SEP-19 /oracle/XXX/YYYbackup/cntrlXXX.dbf Backup Set 3276340 02-FEB-20 Backup Piece 3276351 02-FEB-20 /backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200202_35669_1_FULL deleted backup piecebackup piece
handle=/backup_new/YYY_Backups/xxxxxxxxxxxxx/XXX/rman/XXX_20200202_35669_1_FULL
RECID=23483 STAMP=103132361 4Deleted 1 objects
RMAN-06207: WARNING: 21 objects could not be deleted for DISK channel(s) due RMAN-06208: to mismatched status. Use CROSSCHECK command to fix status
RMAN-06210: List of Mismatched objects RMAN-06211: ========================== RMAN-06212: Object Type Filename/Handle RMAN-06213: --------------- --------------------------------------------------- RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtcxc/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtcxc/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtnsl/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtnsl/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtthh/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwtthh/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwttjx/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwttjx/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwuasu/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwuasu/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwuqtu/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexwuqtu/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexzjthw/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sexzjthw/cntrlXXX.new RMAN-06214: Datafile Copy /tmp/control01.ctl RMAN-06214: Datafile Copy /oracle/XXX/112_64/dbs/snapcf_XXX.f RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sfaywtzs/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sfaywtzs/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sfaywukz/cntrlXXX.old RMAN-06214: Datafile Copy /oracle/XXX/YYYreorg/sfaywukz/cntrlXXX.new RMAN-06214: Datafile Copy /oracle/XXX/YYYbackup/cntrlXXX.dbf
released channel: c1
released channel: c2
released channel: c3
released channel: c4
Recovery Manager complete.
On Sun, Feb 23, 2020 at 9:15 PM Mladen Gogala <gogala.mladen_at_gmail.com> wrote:
> BR*Tools do leave a log file and have several methods. One of them is > UTL_FILE, the other one is RMAN. UTL_FILE is basially, version 7 style > backup of files with the database in the backup mode. Another brbackup > method is RMAN, with some twists. BR*Tools can't utilize catalog. I wander > what method is used by BR*Tools. BR*Tools, as opposed to RMAN, can also > utilize snapshots. The phrase "SAP backup" doesn't mean much without the > exact configuration of brbackup. BR*backup is also backing up the SAP > configuration files, which are ignored by usual RMAN backups. SAP only > certifies BR*Tools for SAP R3 backup. RMAN backup is not certified. There > are many nuances here, and discussing BR*Tools without knowing the details > is pointless. > On 2/23/20 9:23 PM, Jack van Zanen wrote: > > First question: Can they prove it is your backup causing the Performance > issue. You may be on a wild goose chase > > Even SAP backups most likely leave a log file behind somewhere that should > tell you what the SAP backup is doing (is it actually making a backup?) . > Don't they use RMAN under the hood anyway? > > Regards > > Jack van Zanen > > > ------------------------- > This e-mail and any attachments may contain confidential material for the > sole use of the intended recipient. If you are not the intended recipient, > please be aware that any disclosure, copying, distribution or use of this > e-mail or any attachment is prohibited. If you have received this e-mail in > error, please contact the sender and delete all copies. > Thank you for your cooperation > > > On Sat, Feb 22, 2020 at 6:22 AM Sandra Becker <sbecker6925_at_gmail.com> > wrote: > >> Oracle EE v11.2 >> >> The Basis admin from another team has asked if I can help him find out >> why RMAN backups of his SAP database cause severe performance issues in the >> database with only two channels. Yet the SAP backup method runs with 6 >> parallel processes in about 4-5 hours. I know nothing about how the SAP >> backups are configured and don't have access to any of that information, so >> I'm not sure you'll be able to provide much help to us. I do know the >> following: >> >> - they don't use ASM >> - all files are on the same NFS mount, including the datafiles, >> binaries, logs, audit files, etc. >> - archivelogs are kept for 3 days and written to another NFS mounted >> drive >> - SAP backup method uses 6 channels, backup completes in 4-5 hours >> - RMAN backup was set for 2 channels, backup tool over 12 hours and >> caused significant performance degradation (so I was told, I can't prove it) >> >> Any suggestions on what they should look at to see what's going on or >> adjustments they should look into? I've looked at their RMAN configuration >> and it's actually pretty close to what I use in my production databases, >> just minor differences for path names and the like. >> >> -- >> Sandy B. >> >> -- > Mladen Gogala > Database Consultant > Tel: (347) 321-1217 > >
-- Sandy B. -- http://www.freelists.org/webpage/oracle-lReceived on Mon Feb 24 2020 - 18:13:20 CET