You can restore a subset of files or directories from local
snapshots using a sample script in case of accidental deletion.
The mmcdpsnapqueryrecover sample script
only works on the Linux® operating
system.
The sample script retrieves files or directories from all file
system and fileset snapshots on the system and presents a list of
files that you can choose to restore.
Regular files are simply copied into the user-specified directory.
If the user specifies a directory to be retrieved, the directory is
copied into the user-specified directory as a compressed tar file.
Files and directories that contain spaces in their names can
also be retrieved.
Use the mmcdpsnapqueryrecover sample script
to restore files or directories from snapshots into the user-specified restorePath directory
as follows.
- Use the following command to list all copies of a file
or directory in a file system or fileset snapshot.
/usr/lpp/mmfs/samples/ilm/mmcdpsnapqueryrecover.sh Device \
--file-path fsPath --destination-dir restorePath
Where:
- device is the name of the file system.
- file-path is the full file path.
- destination-dir is the full path of the restore
directory.
For example, to get all copies of the file
/gpfs0/gplssnapshot in
the file system
gpfs0 and with
/opt as
the restore directory, enter the following:
/usr/lpp/mmfs/samples/ilm/mmcdpsnapqueryrecover.sh /dev/gpfs0 \
--file-path /gpfs0/gplssnapshot --destination-dir /opt
All copies of the specified file are listed as follows:
Found regular file in filesystem snapshot: restorFiles1
1) 5743 Jan 9 08:34 /gpfs0/.snapshots/restorFiles1/gplssnapshot
Found regular file in filesystem snapshot: restorFiles3
2) 5882 Jan 9 08:34 /gpfs0/.snapshots/restorFiles3/gplssnapshot
Found regular file in filesystem snapshot: Restore1
3) 5886 Jan 14 12:33 /gpfs0/.snapshots/Restore1/gplssnapshot
Found regular file in filesystem snapshot: Restore2
4) 5886 Jan 14 12:33 /gpfs0/.snapshots/Restore2/gplssnapshot
Found regular file in filesystem snapshot: global1
5) 5886 Jan 14 12:33 /gpfs0/.snapshots/global1/gplssnapshot
Which copy of the file/directory (1-5) would you like to restore?
- From the list, select the file that you want to restore
by entering the corresponding number.
For example:
Which copy of the file/directory (1-5) would you like to restore? 2
The copy number 2 is restored to the /opt directory.