Source:How to use CIFS share (NAS) as data store and how to back up data from CIFS share
Overview
Quick setup
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Warning | |
Do not use CIFS share for deduplication! |
SEP sesam provides efficient backup from as well as to Network Attached Storage (NAS) devices, such as QNap and Synology, which support data transmission through the CIFS protocol. You can use SEP sesam to save your data to CIFS shares (by creating a data store) or to back up your files on CIFS shares to another storage. Note that an Si3 deduplication data store is not supported for backing up to CIFS shares.
If you want to use a CIFS share as a data store, configure it as described in the following procedure.
Prerequisites
- Make sure that the volume, which is going to be used as a data store, is dedicated to the SEP sesam data store exclusively and not shared by other users or applications!
- Ensure maximum network connection stability between the SEP sesam Server and your CIFS share.
Setting SEP sesam service permission
In order to be able to back up to CIFS or from CIFS shares the SEP sesam service has to run as a local Administrator account. By default, SEP sesam is started as a local system account, which does not have access to network drives.
The user which SEP sesam uses can be changed in the services settings like shown here:
After changing the account please restart the service.
- It may be necessary to use the Domain Admin account (WINDOWS_DOMAIN/Administrator), if the target is a domain member.
Log-on with the user name which you have just configured in the service settings and try accessing the share using the explorer via UNC path like shown in this screen shot:
In this example, the storage we want to back up to is represented as \\sepnap.sep.de\winfix.
During access with the Explorer no username or password request for authentication should appear, otherwise, sesam will have problems accessing the network share. Please note that when sharing a folder for CIFS backup on a newer Windows system, you will need to have a user with the same credentials as the SEP sesam service user on the machine that serves the share.
The CIFS share should not be mapped as a network drive at the same time!
The $ symbols are recommended but not required.
Configuration
In order to create a data store which can be able to back up to a CIFS share, the drive, which gets configured for a data store, has to point to the network share like shown in this screenshot:
In this example, the data store should back up to \\sepnap.sep.de\winfix$. The capacity cannot be set during creation. Upon the first backup to this data store, the free space on the CIFS share will be added to the data stores information!
Just like the data store, a media pool location simply points to a certain UNC Path, in this example, the location we want to back up to is \\sepnap.sep.de\winfix$:
File:Backup cifs4.jpg
Start Backup
Starting a backup to the create data store will result in folders and files to be created. If the backup fails with a WIN32 API Error: Access denied, the sesam server still has issues accessing the UNC Path correctly.
Troubleshooting
If a backup fails, check the following topics:
- Does the service really run as local Administrator account?
- Can you create files in the directory via the systems explorer?
- Enough free space on the CIFS share to store enough data?
- Is the same share you want to back up to mapped to some kind drive name?
See also
Configuring a Data Store – Configuring a Media Pool – Standard Backup Procedure – NetApp-CIFS-Backup