Things to consider and limitations before you use the instant access feature
Note the following about the Instant access virtual machines feature:
This feature is supported with backup copies that are created from the local or cloud LSU (logical storage unit) using the NetBackup web UI or Instant Access APIs.
For more information about limitations of instant access for cloud LSU (logical storage unit), refer to the
NetBackup Deduplication Guide.This feature is supported with backup copies that are created from protection plans or policies.
The download files feature is supported for NetBackup Appliance, NetBackup Virtual Appliance, Flex Appliance, and Build Your Own (BYO) server.
Instant access on Flex WORM storage requires the following services:
NGINX, NFS. SAMBA, WINBIND (if Active directory is required), SPWS, VPFS
This feature is limited to 50 concurrent mount points from a Media Server Deduplication Pool (MSDP) media server or from a WORM storage server. If you have a Flex appliance, this feature is limited to 50 concurrent mount points from each node.
For file or folder download with the option and the create instant access VM feature, the NetBackup web UI must be able to access the media server with the same name or IP address that the primary server uses to connect to that media server.
If the media server appliance uses a third-party certificate, you need to create certain configurations on the NetBackup primary server before you use this feature.
For more information, refer to the "Third-party certificates" and "Implementing third-party SSL certificates" sections in the NetBackup Appliance Security Guide.
A 5-minutes-alive-session threshold is defined in Appliance and BYO web server NGINX. The files and folders that are selected for download must be compressed and downloaded within this threshold.
To ensure that Instant Access works effectively after the storage server and primary server are upgraded from an earlier NetBackup version, restart the NetBackup Web Service on the upgraded primary server with the following commands:
/usr/openv/netbackup/bin/nbwmc stop
/usr/openv/netbackup/bin/nbwmc start
If you have to download or restore files or folders from a Windows VM, ensure that the number of Windows registry hives are less than 10000.
More information is available about registry hives.
This feature does not support VMs that have a disk in the raw device mapping mode (RDM) or the VMs that have a disk in the Persistent mode.
For Windows restore, the ReFS file system is not supported.
The Instant Access feature does not support a Windows 10 compact operating system. To verify if your operating system is compressed, run compact "/compactos:query" on the command prompt before backing up your VM.
To disable the compression, run "compact /compactos:never" on the command prompt before backing up your VM. You can then use the Instant Access feature for your VM backups.
The instant access feature does not support hard links. If you create a universal share from an image and the image has hard link files, vpfsd shows show these hard link files as having 0 bytes size.
For a Linux VM, mirrored volumes are not supported for instant access.