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Initiates a process of full rollforward recovery. Scope | |
SQLUtil Only SQLUtil Syntax | |
>> SETUPRECOVERY DBEnvironment Name: DBEnvironmentName Maintenance Word: MaintenanceWord Recover To (mm/dd/y/hh/mm/ss) (opt): RecoverTime New Log Mode (Single/Dual) (opt): NewLogMode Enter New Log File Name(s) Separated By A Blank: NewLogFile1 [NewLogFile2] New Log File Size (opt): NewLogSize Setup Recovery (y/n)? { Y[es] N[o] } Parameters | |
- DBEnvironmentName
is the name of the DBEnvironment you are recovering.
The DBEnvironment name may be entered
either as an absolute pathname or as a pathname relative to
your current working directory.
- MaintenanceWord
is the maintenance word.
- RecoverTime
is the time up to which you want to recover the DBEnvironment.
- NewLogMode
is either Single or Dual. This applies to the new log, not to
the one from which recovery is carried out.
- NewLogFile1 and NewLogFile2
are the names you are specifying for the new log. Use both names
for dual logging.
Files are created in the same directory as the DBECon file unless you
specify a complete pathname.
- NewLogSize
is the size of the new log in 512-byte pages.
Description | |
This command starts a DBEnvironment session and
lets you begin the process of rollforward recovery
after a DBEnvironment and its log files have been restored.
Rollforward recovery uses four commands:
SETUPRECOVERY or SETUPRECOVERY PARTIAL—initiates the process.
RESTORELOG—restores one or more log files from a backup.
RECOVERLOG—issued by you for each log file being applied to the
DBEnvironment.
ENDRECOVERY—ends the rollforward recovery process.
SETUPRECOVERY should be done from the
directory
from which the DBEnvironment was originally stored (usually the
directory
containing the DBECon file and SYSTEM DBEFileSet).
You normally apply SETUPRECOVERY or SETUPRECOVERY PARTIAL once.
For SETUPRECOVERY you can specify a
RecoverTime as the end point for recovery.
For SETUPRECOVERY PARTIAL you must recover all the way forward to the
point of failure.
You then use RESTORELOG to restore each backup log file to
the system in sequence number order, and you use RECOVERLOG
once for each log file that you have restored, to apply
it to the DBEnvironment.
ALLBASE/SQL will recover the transactions in the
file up to the RecoverTime you specified or up to the
end of the file.
You use ENDRECOVERY once after recovering all the log files you wish
to apply to the DBEnvironment.
Normally, you do not use ENDRECOVERY if you specified a
RecoverTime in the SETUPRECOVERY command.
ENDRECOVERY will result in an error if you have not recovered
enough files to make the DBEnvironment consistent. If you used
STOREONLINE to do an online backup of the DBEnvironment, you must recover
starting from the First Log Sequence Number Needed for Recovery up
to and including
the file that was active at the time the last STOREONLINE command
completed. If you did a static backup of the DBEnvironment, you can
recover as little or as much of the log as you desire once you
have restored the most recent copy of the DBEnvironment.
Authorization | |
You must be the superuser, DBECreator or supply the correct
maintenance word to use this command. Example | |
>> setuprecovery
DBEnvironment Name: PartsDBE
Maintenance Word: Return
Recover to: (mm/dd/yy/hh/mm/ss) (opt): Return
New Log Mode (Single/Dual) (opt): single
Enter New Log File Name(s) Separated by a Blank: newlg1
New Log File Size: 250
Setup Recovery (y/n)? y
Recovery Has Been Set Up.
Next Log Sequence Number is 1.
>> restorelog
DBEnvironment Name: PartsDBE
Maintenance Word: Return
Input Device: /dev/tape
Local (y/n) (opt): y
Rename 'lgn1' Log File To: newlog
Restore the Log File (y/n)? y
Log File 'newlog' was Restored.
>> recoverlog
DBEnvironment Name: PartsDBE
Maintenance Word: Return
Next Log File To Recover: newlog
Recover Log File (y/n)? y
Log File Recovered.
Next Possible Log Sequence Number is 2.
>> endrecovery
DBEnvironment Name: PartsDBE
Maintenance Word: Return
End Recovery (y/n)? y
Recovery Has Terminated.
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