The NAS volume that has been backed up can be referred to or configured from Web Console.
With this function, it is possible for the NAS backup volume to be referenced as Read-Only, writing back from the NAS backup volume to the NAS volume is possible in units of individual files.
Mounting NAS Backup Volume
Mount the NAS backup volume from Web Console.
After implementing the mounting, the shared folder within the NAS backup volume can be referenced as Read-Only.
When performing restoration in units of individual files, after executing the mounting, manually move the files from the shared folder within the NAS backup volume to the shared folder within the NAS volume.
Refer to "Mount/Unmount Backup Destination" in the Web Console Guide for information on the procedures for mounting.
To access the shared folder within the NAS backup volume, refer to "3.10.4 How to Access Backup Destination Volume".
Whether to mount a NAS backup volume varies with the ETERNUS Disk storage system. Refer to the ETERNUS Disk storage system manual for more information.
Information
When executing mounting of the NAS backup volume, it is required that backup has already been implemented. Confirm whether backup has already been implemented by referring to "Display Shared Folder" or "Display Backup Information" in the Web Console Guide.
Do not mount a NAS backup volume before performing the meta cache distribution. Mounting a NAS backup volume creates meta cache of the NAS backup volume. However, unless the NAS backup volume is mounted with meta cache distribution balanced, access performance to NAS file systems could be degraded.
"Meta cache" is cache data for managing NAS file systems. "Meta cache distribution" is a function to resolve and balance the disproportionation if meta cache is slanted to one CM.
Refer to the ETERNUS Disk storage system manuals for details about meta cache and meta cache distribution.
When accessing it by the CIFS protocol, the shared folder within the NAS backup volume has a suffix ($bak) assigned to its name and is shared as Read-Only.
For example, when the shared folder is created with the name NAS_Share, the shared folder within the NAS backup volume can be referenced with the name NAS_Share$bak.
When the NAS backup volume is mounted, the name of the shared folder within the NAS backup volume is not displayed in Web Console.
While the NAS backup volume is mounted, backup / restore of the NAS volume cannot be executed.
Setup values (shared status, access settings, etc.) in the shared folder within the NAS backup volume are setup values for the NAS volume at the time of execution of the backup.
The settings of the shared folder in the NAS backup volume cannot be changed.
The shared folder in the NAS backup volume cannot be set up so as to be accessible using FTP. When backup is executed, even if the shared folder in the NAS backup volume is set up so as to be accessible using FTP, it is not accessible.
Before unmounting the NAS backup volume, disconnect the network from the client. If unmounted while the network is connected to the client, the NAS backup volume may fail in use.
Unmounting NAS Backup Volume
Unmount the NAS backup volume from Web Console.
Refer to "Mount/Unmount Backup Destination" in the Web Console Guide for information on unmounting procedures.
Note
If an error occurs in the storage device when you unmount the NAS backup volume, Web Console may display that the NAS backup volume is mounted even though it is unmounted in the storage device. In this case, by unmounting the NAS backup volume again, Web Console displays the unmounted state.
