Backup Cmdin DB2

Published on October 2021 | Categories: Documents | Downloads: 4 | Comments: 0 | Views: 48
of 2
Download PDF   Embed   Report

Comments

Content

 

db2 backup commands are very easy and can be sorted into different categories: ONLINE BACKUP: Online backups are a common scenario in any production environment. For online b ackups , you should enable archival logging. With online backups , your applicat ion will remain intact even when the backup is running. Examples: db2 backup db dbname online db2 backup db dbname online compress OFFLINE BACKUP: Offline backup means that the database will not be available for users during th e backup time. But the advantage with this type is that you need not worry about logs during restore You might have to force off the applications and/or deactivate the database befo re you kick off the offline backup. Sometimes quiesce is required Examples: db2 backup db dbname db2 backup db dbname compress BACKUP WITH BUFFERS AND PARALLELISM: This is to tweak with the performance of the backups. Buffers and parallelism ca n be adjusted to enhance the performance Example: db2 backup db dbname with 4 buffers parallelism 2 TABLESPACE BACKUP: Tablespace backups are handy for huge databases. You can manage tablespace backu ps instead of whole database backup Example: db2 backup db dbname tablespace(syscatspace,userspace1) tablespace(syscatspace,userspace1) ONLINE DELTA BACKUP: Deltas and incrementals are handy for big databases. Deltas capture only changes after previous delta. TRACKMOD needs be turned on for deltas Example: db2 backup db incremental delta INCREMENTAL BACKUP: Incrementals capture the changes from the last full backup time. TRACKMOD needs to be turned on for incrementals Example: db2 backup db incremental

 

BACKUP INCLUDE LOGS: When you want to rollforward you need logs and this backup command comes handy.. With recent versions of db2 logs are included in backup implicitly.Kindly note t hat you need to specify the LOGTARGET when you restore a backup that includes lo gs Example: db2 backup db $DBNAME online to $BACKUPDIR COMPRESS COMPRESS ing

include logs without prompt

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close