This option is used to protect virtual machine snapshots so they cannot be expired while an instant restore or instant access operation (of VMware VMs) or a file-level restore (of a Hyper-V or VMware VM) is in progress.
During a mount or restore operation, the snapshot on the Tivoli® Storage Manager server is locked to prevent it from expiring during the operation. Expiration might occur because another snapshot is added to the snapshot sequence. This option specifies whether to prevent or allow snapshot expiration during a mount or a restore operation.
This option can be used with supported Windows clients that are configured to restore virtual machines.
For restoring VMware virtual machines, set this option in the client options file (dsm.opt) or on a restore vm command where the vmrestoretype option is set to instantaccess or instantrestore.
For restoring file-level backups for virtual machines, specify this option in the client options file, or on the restore vm command.
When the snapshot is on a target replication server, the snapshot cannot be locked because it is in read-only mode. A lock attempt by the server causes the mount or restore operation to fail.
To avoid the lock attempt and prevent such a failure, disable expiration protection by specifying No, or by allowing this option to default.
dsmc restore vm vm1 -vmname=new_vm1 -vmrestoretype=instantaccess
-vmexpireprotect=no