Example 1: Recover to the most recent differential backup acquisition point

Nonstop Database, HiRDB Version 9 System Operation Guide

21.4.1 Example 1: Recover to the most recent differential backup acquisition point

This example recovers user RDAREAs (rdarea01 and rdarea02) to a differential backup acquisition point.

In addition to these RDAREAs, you must also recover all related RDAREAs at the same time. For details about the related RDAREAs, see 6.3 RDAREAs to be backed up together.

Organization of this subsection: (1) Identify the RDAREAs related to the RDAREAs to be recovered; (2) Use the pdclose command to close RDAREAs in error shutdown status; (3) Use the pdrstr command to recover RDAREAs; (4) Use the pdrels command to open recovered RDAREAs by releasing their error shutdown status

(1) Identify the RDAREAs related to the RDAREAs to be recovered

Perform this operation only on user RDAREAs and user LOB RDAREAs (the original RDAREAs of user RDAREAs and the original RDAREAs of user LOB RDAREAs if the inner replica facility is used). If a row-partitioned table is defined, execute the pdrdrefls command with the -t option to identify the RDAREAs comprising the row-partitioned table.

If you need to recover more RDAREAs than the following example shows, add their names following the -r option.

 
pdrdrefls -k chk -e org -c ref
-r rdarea01,rdarea02

(2) Use the pdclose command to close RDAREAs in error shutdown status

 
pdclose -r rdarea01,rdarea02

(3) Use the pdrstr command to recover RDAREAs

 
pdrstr -m /rdarea/mast/mast01 -g backupg1 -K /pdcopy/admfile -r rdarea01,rdarea02

Explanation: -m: Specifies the name of the first HiRDB file in the master directory RDAREA.; -g: Specifies the name of a differential backup group.; -K: Specifies the name of the HiRDB file system area for storing the differential backup management file.; -r: Specifies the names of the RDAREAs (rdarea01 and rdarea02) that are to be recovered.

(4) Use the pdrels command to open recovered RDAREAs by releasing their error shutdown status

 
pdrels -r rdarea01,rdarea02 -o