IntelliSnap - Best Practices - NAS iDataAgent
- Use UTF-8 on NetApp for Volume Language
- NetApp ISCSI LUN Must Be Offline
- Use Load-Balancing to Distribute Job Processes among Several Available MediaAgents
- Use IntelliSnap to Improve Backup Performance of Small Files
- NAS Load Balancing
- Enable NDMP on NetApp File Server
- Reconfiguring Default Subclient Content
To successfully browse and restore NAS data on a NetApp file server, it is recommended to use the UTF-8 setting for volume language. Please consult with NetApp for implications of changing volume language.
For a NetApp iSCSI configuration, the iSCSI LUN must be offline before restoring an iSCSI file from a backup job.
If you do not use Alternate Data Paths, do the following to allow job processes to be distributed among the different available MediaAgents:
- Configure drive pools on multiple MediaAgents so that NAS jobs will not all run on a single MediaAgent, and thus the processor load for these jobs will occur on different machines. See Master Drive Pools, Drive Pools and Drives.
- Configure multiple Storage Policies, each using a different MediaAgent and drive pool. See Storage Policies.
- Distribute the data to be protected among multiple subclients.
- Associate each subclient to a different Storage Policy. See Associate a Subclient to a Storage Policy.
If you do use Alternate Data Paths, the load-balancing of the job processes described above can be achieved just as effectively in addition to the network load-balancing and fault-tolerance that the Alternate Data Paths feature provides.
A bottleneck of too many read/write operations may occur when backing up small files to tape. Therefore, you may want to consider using IntelliSnap to create snapshots of these small files, instead of using regular NAS backups. Using snapshots may increase backup and restore performance in this case.
You can configure the drive pools, storage policies and subclients for NAS in such a way that different MediaAgents are used for backup, restore and auxiliary copy operations. Thus each operation will use resources from different computers.
Enable NDMP on NetApp File Server
Make sure that NDMP is enabled on the file server. This can be done in the following two ways:
Option 1: Command Line
- From a file server command line, run the ndmpd on command.
- Edit the /etc/rc file on the file server and add the command to the end of the file. This ensures that NDMP will be enabled each time the file server is rebooted.
Option 2: Web Browser
- From a standard web browser, enter the URL: http://filername/na_admin.
- Login using your login and password.
- Select NDMP.
- Click Enable NDMP.
NDMP is now enabled and will start automatically each time the file server is rebooted. You can also configure CIFS shares and NFS exports.
We recommend that you do not re-configure the content of a default subclient because this would disable its capability to serve as a catch-all entity for client data. As a result, some data will not get backed up or scanned.