Backing Up Oracle - Computing at Cornell

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shark_target_volume We only used one volume for our test. If your database uses many ESS volumes for your datafiles, and other Oracle files, you should specify this parameter for each volume you use. We initially put in here the serial number of the FlashCopy device, followed by two dashes (‘- -’). The dashes was updated later with the source volume serial number, and the size of the volume when the backup script was run on the production machine. You must note that the FlashCopy device must be accessible to the backup machine, but must not be known to the operating system when the backup process is running. When the backup process starts on the backup machine, TDP for ESS runs the Configuration Manager and makes the disks and filesystems known to the operating system, runs the backup, then removes the file system and disks from the operating system. We had problems because of this and the errors produced in the trace file were not that obvious. Our backup script file as specified in database_backup_script_file in the production machine looks like this: run { allocate channel t1 type 'sbt_tape' parms 'ENV=(DSMO_NODE=auckland,DSMI_ORC_CONFIG=/usr/tivoli/tsm/client/api/bin/dsm.opt, DSMI_LOG=/orc8/app/oracle/product/815/admin/tokyo/adhoc,DSMO_OWNER=oracle8)'; backup (database); release channel t1; } Here are some things to note on the backup script: TDP for Oracle environment variables The environment variables used by channel t1 are what you would normally use for TDP for Oracle. DSMO_NODE This is the TSM node name to be used to backup the database. This is the node name for TDP for Oracle and not TDP for ESS. 236 Backing Up Oracle using Tivoli Storage Management
DSMO_OWNER You must specify the operating system DBA as the owner. In our case, it is oracle8. If you do not specify DSMO_OWNER, the owner of the files in the TSM server will be daemon. Because oracle8 does not own the files, root will be the only one who can do RMAN crosscheck and recovery. Specifying DSMO_OWNER will ensure that the DBA will have privileges to do crosschecks and recovery for the database. Backup (database) The backup command must be split into two lines as in: backup (database) TDP for ESS modifies the Backup command in the script. Note that in the production machine, it modifies it to backup only the control files. In the backup machine, it modifies it to include the incremental parameter as specified in database_backup_incremental_level. If the backup (database) is in one line, the (database) part gets deleted in the backup machine. Warning: We initially have our backup (database) on one line, and it caused the script to fail. The trace file was helpful in finding out the problem, and it showed how TDP for ESS parsed the backup command. We suggest that the backup script be as simple as possible as TDP for ESS needs to parse and rewrite the RMAN commands. E.3.2 Backing up the database using TDP for ESS Before discussing our tests, let us discuss how we did our backups on the production and backup machine. You should also read the backup and restore chapter in the Tivoli Data Protection for IBM ESS for Oracle Databases Installation and User’s Guide manual SH26-4125-00. The backup chapter also discusses how you can automate the backup using the TSM scheduler. We first ran the backup on the production machine which only backed up the control files and some other files. Then we ran the backup on the backup machine which does the actual backup of the database. Note that you have to use root to run the TDP for ESS backups. Appendix E. TDP for IBM ESS for Oracle databases 237
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Backing Up Oracle Using Tivoli Stor
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Take Note! Before using this inform
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3.1.3 Backup windows. . . . . . . .
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8.3 Recovery examples . . . . . . .
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C.1.1 TDPO.OPT file . . . . . . . .
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x Backing Up Oracle using Tivoli St
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41. Complete or Custom . . . . . .
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xiv Backing Up Oracle using Tivoli
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The team that wrote this redbook Th
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xviii Backing Up Oracle using Tivol
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2 Backing Up Oracle using Tivoli St
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Backup/archive client This allows u
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1.1.2 Tivoli Data Protection for Or
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8 Backing Up Oracle using Tivoli St
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Table A Table B Tablespace 1 Figure
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Table A Table B Tablespace 1 data f
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Figure 4. Log files Database Some R
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2.2 Oracle8i overview The previous
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Online redo logs are commonly multi
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Node 1 Instance Red log Figure 7. P
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Units of recovery (which other tabl
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For each type of event that may occ
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3.2.1 Disk mirroring Often, a combi
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Note You should assume that import
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This is how to recover from a log f
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32 Backing Up Oracle using Tivoli S
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TSM backup-archive client: Tivoli s
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4.4.2 Installing the TSM client Thi
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RMAN> run{ 2> allocate channel t1 t
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Only the owner of the data object o
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tsm: BRAZIL>q copygroup api_domain
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Once the object is sent to the TSM
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A backup object that is the active
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4.7 Policy management consideration
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TDP for Oracle does not send any ar
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4.8 Node considerations A TSM clien
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you can save time by sending the bi
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tsm: BRAZIL>def stg api_disk_a DISK
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If you are planning to use the 64-b
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5.1.3 Edit the client options files
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5.1.4 Registering with the TSM serv
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6.1.1.1 RMAN command The RMAN comma
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Figure 13. RMAN and TSM system comp
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The following are sample print scre
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To list the result of the register
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6.3.2 Whole database backup A whole
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6.3.3.2 Cumulative incremental back
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Figure 17. Whole consistent backup,
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. The second archivelog backup exam
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The following example shows the cod
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The normal way to start SQL*Net ser
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7.2.1 Report utility The list comma
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RMAN> report need backup incrementa
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7.2.1.4 Report on unrecoverable dat
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7.2.2.3 List backup of certain obje
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To list backups of archive logs bet
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#!/bin/ksh # Initialize variables:
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This is an example of TSM SQL SELEC
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106 Backing Up Oracle using Tivoli
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Control file Archive log If the con
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8.3.2 Complete recovery Next, we cr
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Some hours after the successful rec
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We created an RMAN command file inc
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We created an inito.ora file for in
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In this example: - The syntax for t
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With this storage policy defined, t
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Figure 21. Downloading TDP for Orac
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We wanted to change the installatio
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We left the program folder as the d
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The next screen was the registratio
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.. Figure 31. Editing the client op
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Figure 33. First steps to test a RM
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RMAN> run { 2> allocate channel t1
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RMAN> list backup; RMAN-03022: comp
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From the RMAN prompt, we need to al
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From this site, you can select whic
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The next screen will prompt you for
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Select either Complete or Custom. T
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After selecting a Complete or Custo
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If you are using TCP/IP as your com
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9.7.3.1 Coexistence of backup-archi
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10.1.1.1 RMAN command The RMAN comm
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Figure 47. RMAN and TSM system comp
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10.1.3 Registering the target datab
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10.2.2 Whole database backup A whol
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Cumulative backups require more sto
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shutdown immediate ; startup force
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The first statement alter system ar
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After selecting the Archive button,
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To use this command file with the s
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After running that command, a numbe
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Figure 55. Changing the scheduler s
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11.3.1 Report utility The report ut
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RMAN> report need backup redundancy
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11.3.2.2 List old backups You can l
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11.3.3 Crosscheck utility To list b
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Page 274 and 275: F.2 Running a backup and verifying
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