You can remove any DR Series system from GlobalView except the system to which you are currently logged on, which contains the GlobalView.
When you remove a DR Series system from GlobalView on one system, it does not remove it from any other GlobalViews to which you may have added it on other systems.
To remove a DR Series system from GlobalView, complete the following steps:
- In the left navigation menu, click GlobalView.
- On the GlobalView page, in the appliance list, click the Delete icon next to the system you want to delete.
NOTE: No Delete icon appears next to the system that contains the GlobalView; it is not available to be removed.
A warning dialog box is displayed to confirm that you want to delete the system.
- Click OK to confirm.
Configuring and using Rapid NFS and Rapid CIFS
Rapid NFS and Rapid CIFS enable write operation acceleration on clients that use NFS and CIFS file system protocols. Similar to OST and RDS, these accelerators allow for better coordination and integration between DR Series system backup, restore, and optimized duplication operations with Data Management Applications (DMAs) such as CommVault, EMC Networker, and Tivoli Storage Manager. For the current list of supported DMAs, see the DR Series System Interoperability Guide.
Rapid NFS is a new client file system type that ensures that only unique data is written to the DR Series system. It uses user space components and file system in user space (FUSE) to accomplish this. Metadata operations such as file creates and permission changes go through the standard NFS protocol, whereas write operations go through Rapid NFS.
Rapid CIFS is a Windows-certified filter driver that also ensures that only unique data is written to the DR Series system. All chunking and hash computations are done at the client level.
NOTE: The supported DMAs listed in the DR Series System Interoperability Guide are the DMAs that have been tested and qualified with Rapid NFS and Rapid CIFS. You can use Rapid NFS and Rapid CIFS with other DMAs (such as Veritas products), but those products have not been tested and qualified with Rapid NFS or Rapid CIFS.
When Rapid NFS and Rapid CIFS are used with the DR Series system, they offer the following benefits:
- Reduce network utilization and DMA backup time
- Chunk data and perform hash computation on the client; transfer chunked hash files on the back-end
- Reduce the amount of data that must be written across the wire
- Improve performance
- Support DMAs such as CommVault, EMC Networker, and Tivoli Storage Manager. For the current list of supported DMAs, see the DR Series System Interoperability Guide.
- Compatible with existing NFS and CIFS clients — just need to install a plug-in (driver) on the client
- Can use Rapid NFS and Rapid CIFS to accelerate I/O operations on any client — including a client that uses home-grown backup scripts
- Can service multiple and concurrent media server backups
This topic introduces some recommended best practices for using Rapid NFS operations with the DR Series system.
- Markers must be set on the client, not in the DR Series GUI
- If you are using a DMA that supports a marker, should explicitly set it. Your containers should have the marker type of None until you set the marker using the Mount command on the client (after installing the Rapid NFS plug-in).
- For existing containers, re-set the marker by doing the following:
For example, if you wanted to set the CommVault marker (cv):
mount -t rdnfs 10.222.322.190:/containers/backup /mnt/backup -o marker=cv
Mount command usage:
rdnfs [nfs mount point] [roach mount point] -o marker=[marker]
nfs mount point = Already mounted nfs mountpoint
roach mount point = A new mount point
marker = appassure, arcserve, auto, cv, dump, hdm, hpdp, nw, or tsm
- Your DR Series system must meet the minimum configuration
Rapid NFS is available on a DR Series system and a client with a minimum of 4 CPU cores running at a minimum of 4 GHz cumulative processing power and 2 GB memory. Kernels must be 2.6.14 or later. For a list of supported operating systems, see the DR Series System Interoperability Guide. If you update your operating system, you must update your Rapid NFS plug-in as well. Updates are available on the Support site as well as within the GUI on the Clients page.
- Rapid NFS is stateful
If the DR Series system goes down, the connection will terminate. DMAs will restart from the last checkpoint.
- Rapid NFS and passthrough mode
If Rapid NFS mode fails for any reason, the DR Series system falls back to regular NFS mode automatically. For details, see Monitoring Performance.
- Rapid NFS performance considerations
When using Rapid NFS on your client, Quest recommends that you do not run other protocols to the DR Series system in parallel, as this will adversely affect your overall performance.
- Rapid NFS acceleration constraints
- Rapid NFS does not support:
NOTE: If the client and server do not have the same times, the times seen will not match typical NFS behavior due to the nature of file system in user space (FUSE).