Direct Access restores optimize the restore operations by allowing the file
server
to directly access the backed up data anywhere in the media without having to
traverse the media sequentially. By
default, all restore operations use the direct access restore process.
It is
recommended to perform a direct access restore if the data to be restored is
less than 30-40% of the backup. For example, if you are restoring 25-30 files
from a backup that contains 100 files, you can use this option. However, it is
recommended to disable this option when you restore a major portion of the
backup.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
Select the data that you want to restore and click
Recover All Selected.
Ensure that the Use Direct Access
Restore option is selected.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
Select the data that you want to restore and click
Recover All Selected.
Clear the Restore to same folder checkbox.
Click Browse to locate the destination path and click OK.
Use the options in the Preserve Source Paths area to exclude
folders (and its contents) from the source path.
For Example: If the selected data is
vol/Data/Memos/Sales, and you want to restore data only from the
Sales folder, set the Preserve <n> level from
end of source path option to 1.
If the selected data is
vol/Data/Memos/Sales,
and you want to restore the data from Memos and
Sales folders, set the Remove <n> level from
beginning of source path option to 2.
In order to restore data to a Windows or Unix client, you need to install the File
System Restore Enabler software on the computer where you want the data to
be restored. See the File System Restore Enabler documentation for a
comprehensive list of steps required to perform this type of restore.
You can restore individual files and folders to different locations using a
map file containing a list of files to be restored, with their corresponding
restore paths.
The map file is a text file in the CSV (Command Separated Value) format. Follow the steps given below to create a map file:
Create a text file on the client computer where you want to restore the
data.
Add the mapping information in the file in the following format:
"<source path>","<destination path>"
If the specified destination folder is not available, the necessary destination
folder will be created during the restore.
The specified paths for both the source and destination should be absolute
paths within the same client computer. (Computer names or UNC paths should not be used in the source and destination
names.)
You can provide following information in a map file:
If the path or the filename contains Unicode characters, the Map File
must be converted to a format that can be used by the data protection operation. The
Unicode Conversion utility must be used to convert the Map File to a format
that can be provided as input.
Using a text editor, create a file that contains a list of files/folders
with Unicode characters. Make sure to save the file as a Unicode text file.
From the Command Line, navigate to the <software install folder>/base
folder and type the following:
cvconvertunicode
<source file> <destination file>
Where:
<source file> is the full path
and name of the file created in Step 1.
<destination file> is the full
path and name of the destination file. The file will automatically be created
by the utility.
Use the destination file as the Map File to perform the
restore.
You can restore NAS data from the command line interface.
Command line restores enable you to perform restore operations on multiple
clients at the same time. It also allows you to reuse the command line scripts
for additional restores.
When performing command line restores, note that backups taken from the
CommCell Console can be restored using Command Line and vice versa. However,
backups taken from a previous version of the CommCell Console can be restored
only from the Command Line.
In order to run the restores from command line, you need an input xml file
which contains the parameters for configuring the restore options. This input
xml file can be obtained using one of the following ways:
Download the
input xml file template and save it on the computer from where the
restore will be performed.
Generate the input xml file from the CommCell Console and save it on the
computer from where the restore will be performed.
In addition to the parameters provided in the template xml file, if you want
to include additional options for the restore, you can do so by selecting the
required options from the CommCell Console and generate the command line xml
script for the restore operation.
Follow the steps given below to generate a script which you can use to
perform a restore from the command line interface:
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
In the right pane of the Browse window, select the data that
you want to restore and click Recover All Selected.
Select the required restore options which you want to execute using the
script.
Click Save as Script.
Enter the location where you want to save the script or click
Browse and navigate to the location.
The script will be saved as a .xml file
and a .bat file is created.
If a file with the same name already exists in the specified location,
the .xml file will be created with a timestamp. However, the .bat file will
overwrite the existing file.
Enter the username and password for the user account which you want to
use to perform the restore.
By default, the user account which you have used to login to CommCell
console is used for performing the restore. However, if the user account does
not have access to application and database, click Use a
different account.
Once you initiate the restore operation, a restore job is generated in the Job
Controller. Jobs can be managed in a number of ways. See
Job
Management for a comprehensive information on managing jobs.
The following sections provide
information on the different job management options available:
Jobs that fail to complete successfully are automatically restarted based on
the job restartability configuration set in the Control Panel. Keep in mind that changes
made to this configuration will affect all
jobs in the entire CommCell.
To Configure the job restartability for a specific job, you can modify the
retry settings for the job. This will override the setting in the Control Panel. It is also possible to override the default CommServe configuration for individual
jobs by configuring retry settings when initiating the job. This configuration,
however, will apply only to the specific job.
Backup jobs for this Agent are resumed from the point-of-failure.
Configure Job Restartability at the CommServe Level
From the CommCell Browser, click Control Panel icon.
Select
Job Management.
Click Job Restarts tab and select a Job Type.
Select Restartable to make the job restartable.
Change the value for Max Restarts to change the maximum number of
times the Job Manager will try to restart a job.
Change the value for Restart Interval (Mins) to change the time
interval between attempts for the Job Manager to restart the job.
Click OK.
Configure Job Restartability for an Individual Job
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog
box, click Advanced.
Click the Job Retry tab.
Select Enable Total Running Time and specify the maximum elapsed
time before a job can be restarted or killed
Select Kill Running Jobs When Total Running Time Expires to kill
the job after reaching the maximum elapsed time.
The following controls are available for running jobs in the Job Controller window:
Suspend
Temporarily stops a job. A suspended job is not
terminated; it can be restarted at a later time.
Resume
Resumes a job and returns the
status to Waiting, Pending, Queued, or Running. The status depends on
the availability of resources, the state of the Operation Windows, or
the Activity Control setting.
Kill
Terminates a job.
Suspending a Job
From the Job Controller of the CommCell Console, right-click the job and
select Suspend.
The job status may change to Suspend Pending
for a few moments while the operation completes. The job status then changes
to Suspended.
Resuming a Job
From the Job Controller of the CommCell Console, right-click the job and
select Resume.
As the Job Manager attempts to restart the job,
the job status changes to Waiting, Pending, or Running.
Killing a Job
From the Job Controller of the CommCell Console, right-click the job and
select Kill.
Click Yes when the confirmation prompt
appears if you are sure you want to kill the job. The job status may
change to Kill Pending for a few moments while the operation
completes. Once completed, the job status will change to Killed and
it will be removed from the Job Controller window after five minutes.
A three-way restore consists of restoring the data to a different
file server or computer.
A three-way restore enables more than one file server to share a library
allowing the restore of data to a file server which may not have a locally
attached library.
The following restore methods are supported:
Restoring to a different file server
Restoring from a library attached to a MediaAgent
Restoring to a Windows or Unix computer (using File System Restore
Enabler)
BlueArc, Dell, EMC Celerra, IBM, Hitachi, Hewlett Packard, Isilon, NetApp, ONStor, Pillar Data Systems, Sun
A VBB full destructive restore is an out-of-place restore of a volume based backup. During this process, the last full backup of
an entire volume is restored to a raw file system (rawfs)
created on the file server.
Follow the steps below after
running a volume based backup:
Create a raw file system (rawfs) on the
file server. Refer to the EMC Celerra documentation for more information.
From the CommCell Console, navigate to <Client> |
EMC Celerra NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
Select the root volume to be restored and click
Recover All Selected.
Clear Use Direct Access Restore and Restore to same folder.
Specify the destination path such as
/celerra_vol_1078 where 1078 matches
the volume name from the nas_fs-list command
for the raw file system.
In the Preserve box, set the value to 0.
Click OK.
Once the restore completes, set the volume type as
usable.
SnapMirror to Tape restores from a block based backup. In order to
perform this type of restore, you must have configured and backed up an
image backup set as described in Configuring Block Based Backups.
Restoring from a block based backup is a full destructive
restore because any existing data on the destination location will be
overwritten.
Follow the steps below to restore from an image based backup:
Ensure that the volume you are restoring from is in a restricted mode
(unavailable for user level data access).
From the CommCell Console, navigate to <Client> |
NetApp NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
Click OK.
Select the volume to be restored and click
Recover All Selected.
You can restore data that was backed up from either 32-bit or 64-bit
aggregates with ONTAP 8.0 to 64-bit aggregates with ONTAP 8.1 and later.
However, the data must be restored to volumes that were created using an
ONTAP version within two major consecutive releases of the ONTAP version
that was used to back up the data.
By default, the data in the destination is overwritten when the
restored version is newer than the one in the destination. Use this
option to overwrite data irrespective of the destination version.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
Use this option to prevent simultaneous execution of multiple backup or
restore operations on the same volume. This is useful as it avoids possible data
inconsistency which can be caused by the following operations on the
same volume:
running a backup operation during restore processing
running a restore operation during backup processing
running another restore operation during restore processing
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
You can use this option to restore file names from media. When this option is
enabled, any short file name that was backed up is restored. If a naming
conflict occurs, the file server uses a new file name.
When disabled,
a file name is generated by the file system, which can result in a name
that is different from the backed up file.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
You can use this option to restore user and group quotas. When this
option is disabled,
the tree (hierarchical) quota records are restored, ignoring user or
group quotas.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
You can use this option to restore tree quotas. When this
option is enabled, tree quota information such as default and limit
values are restored. However, usage information is not restored.
When
this option is disabled, no tree quota information is restored from
media.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
You can use this option to restore tree or directory quota information from
media. When this option is disabled, the quota configuration and usage
conditions are not restored and log messages are generated.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
Click the NAS Options tab.
Select Yes for Restore QTree Configuration and Usage.
The following table describes the available additional options to further
refine your restore operations:
Option
Description
related topic
Startup Options
The Startup Options are used by the Job Manager to set priority for resource
allocation. This is useful to give higher priority to certain jobs. You can set
the priority as follows:
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
In the Advanced Restore Options dialog box,
click Startup.
On the Startup tab, select Change Priority.
Enter a priority number - 0 is the highest priority and 999 is the
lowest priority.
Select the Start up in suspended State check box to start the job
in a suspended state.
By default, the system retrieves data from the storage policy copy with
the lowest copy precedence. If the data was pruned from the primary
copy, the system automatically retrieves data from the other copies of
the storage policy in the lowest copy precedence to highest copy
precedence order. Once the data is found, it is retrieved, and no
further copies are checked.
You can retrieve data from a specific
storage policy copy (Synchronous Copy or Selective Copy). If data does
not exist in the specified copy, the data retrieve operation fails even
if the data exists in another copy of the same storage policy. Follow
the steps given below to retrieve the data from a a specific storage
policy copy:
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
In the Advanced Restore Options dialog box,
click Copy Precedence.
On the Copy Precedence tab, select the Restore from copy precedence
check box.
The data recovery operations use a default Library, MediaAgent, Drive
Pool, and Drive as the Data Path. You can use this option to change the
data path if the default data path is not available. Follow the steps
given below to change the default data path:
When restoring NAS data, the same drive pool type
that was used during backup should be selected to restore the data.
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
In the Advanced Restore Options dialog box,
click Data Path.
On the Data Path tab, select the MediaAgent
and Library.
Select the Drive Pool and Drive for optical and tape
libraries.
Select the name of the Proxy server if you
wish to restore using a proxy server.
You can select the Proxy server only when you are restoring from a snapshot.
This option is not available for a regular restore.
If the client's data is encrypted with a pass phrase, you must enter
the pass-phrase to start the data recovery operation. Follow the steps
given below to enter the pass-phrase:
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
In the Advanced Restore Options dialog box,
click Encryption.
This option enables users or user groups to get automatic notification on the
status of the data recovery job. Follow the steps given below to set up the
criteria to raise notifications/alerts:
From the CommCell Console, navigate to Client Computers |
<Client> |
<File Server> NAS NDMP.
Right-click the backup set and click All Tasks
| Browse Backup Data.
In the Browse Options dialog box, click OK.
Select the data that you want to restore and click
Recover All Selected.
In the Restore Options for All Selected Items dialog box,
click Advanced.
In the Advanced Restore Options dialog box,
click Alerts.
Click Add Alert.
From the Add Alert Wizard dialog box, select the required threshold and
notification criteria and click Next.
Select the required notification types and click Next.
Command Line Interface enables you to perform backups or restore from the command line. The
commands can be executed from the command line or can be integrated into scripts.
You can also generate command line scripts for specific operations from the CommCell
Browser using the Save As Script option.
The CommCell Readiness Report provides you with vital information, such as
connectivity and readiness of the Client, MediaAgent and CommServe. It is useful
to run this report before performing the data protection or recovery job. Follow the steps
given below to generate the report:
From the Tools menu in the CommCell Console, click Reports.
Navigate to Reports | CommServe | CommCell Readiness.
Click the Client tab and click the Modify button.
In the Select Computers dialog box, clear the Include All
Client Computers and All Client Groups check box.
The Restore Job Summary Report provides you with information about all the
data recovery jobs that are run in last 24 hours for a specific client and
agent. You can get
information such as failure reason, failed objects, job options etc. It is useful
to run this report after performing the restore. Follow the steps
given below to generate the report:
From the Tools menu in the CommCell Console, click Reports.
Navigate to Reports | Jobs | Job Summary.
Click Data Recovery on the General tab in the right
pane.
On the Computers tab, select the client and the agent for which
you want to run the report.