Consider the following when restoring SharePoint environments:
• Free space equivalent to twice the size of the backup is required on the local share for restore processing. If adequate space is not available, the restore fails.
• Restores are performed to the original farm only.
• Full catastrophic farm recovery can only be performed for deployments where the installation type is single server. To check your installation type, see To determine the SharePoint installation type.
• Granular recovery of farm items is supported on both single-server and multi-server farms through the use of a Windows or third-party tool.
• For a restore to succeed, all nodes in the farm must be online and available.
• Only one restore or backup operation per farm can run at any given time.
• For a given farm, any backups initiated while a restore is in progress will fail. Once the restore completes, backups can be run for the farm.
• For a given farm, any restores initiated while a backup is in progress will fail. Once the backup completes, restores can be run for the farm.
• For granular, item-level restores, the backup is unfolded to a local system share. From here you can restore items using a Windows or third-party tool. When you are finished restoring, you must tear down the share. Subsequent backup or restore operations for the given farm will fail until the restore share has been torn down.