smtape is useful if you need to transfer huge volume over low bandwidth  network.  Let say i have a 7TB volumeA to transfer over to remote site , it is going to take forever to transfer.  smtape comes in as a solution, you can smtape to tapedrive and send the tape over to your remote site.

But what if your remote site does not have any tape library? I am going to show you the workaround smtape to volume(not tape drive) . smtape will create a single dump file and you can just copy it via CIFS/NFS to your external harddisk. Send it over to remote site, then attach the USB harddisk to one of Windows/Linux server, copy it into Netapp vis CIFS/NFS(temp volume) .

Steps
Source : VMware_ISO
Destination : test_restore
smtape temp volume : test_sm2t

Prerequisite : priv set diag

1. smtape backup /vol/VMware_ISO /vol/test_sm2t/dump/disk_file
2. vol restrict test_restore
3. smtape restore /vol/test_restore /vol/test_sm2t/dump/disk_file
4. snapmirror status

Snapmirror is on.
Source                                                      Destination                                           State          Lag        Status
snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0  mynas01:test_restore                                 Snapmirrored   00:01:09   Idle
mynas01:VMware_ISO                                         snapmirror_tape_6a1045a6-1050-11e2-bc32-00a098186ab2  Source         00:01:09   Idle

5. snap list VMware_ISO

Volume VMware_ISO
working...
 
  %/used       %/total  date          name
----------  ----------  ------------  --------
  0% ( 0%)    0% ( 0%)  Oct 05 15:27  snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0 (snapmirror)

6. snap list test_restore

Volume test_restore
working......
 
  %/used       %/total  date          name
----------  ----------  ------------  --------
  0% ( 0%)    0% ( 0%)  Oct 05 15:27  snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0

7. snapmirror resync -S mynas01:VMware_ISO mynas01:test_restore

mynas01*> snapmirror resync -S mynas01:VMware_ISO mynas01:test_restore
NOTE: Destination volume test_restore is already a replica.
NOTE: Resync will not need to revert the volume.
The resync base snapshot will be: snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0
Are you sure you want to resync the volume? y
Fri Oct  5 15:30:04 MYT [mynas01: replication.dst.resync.success:notice]: SnapMirror resync of test_restore to mynas01:VMware_ISO was successful.
Transfer started.
Monitor progress with 'snapmirror status' or the snapmirror log.
 
mynas01*> snapmirror status
Snapmirror is on.
Source                Destination                                           State          Lag        Status
mynas01:VMware_ISO   mynas01:test_restore                                 Snapmirrored   00:00:52   Idle
mynas01:VMware_ISO   snapmirror_tape_6a1045a6-1050-11e2-bc32-00a098186ab2  Source         00:03:41   Idle

8. snapmirror status -l mynas01:test_restore

Source:                 mynas01:VMware_ISO
Destination:            mynas01:test_restore
Status:                 Idle
Progress:               -
State:                  Snapmirrored
Lag:                    00:01:14
Mirror Timestamp:       Fri Oct  5 15:30:05 MYT 2012
Base Snapshot:          mynas01(1574419105)_test_restore.1
Current Transfer Type:  -
Current Transfer Error: -
Contents:               Replica
Last Transfer Type:     Resync
Last Transfer Size:     100 KB
Last Transfer Duration: -
Last Transfer From:     mynas01:VMware_ISO

9. snap list VMware_ISO

Volume VMware_ISO
working...
 
  %/used       %/total  date          name
----------  ----------  ------------  --------
  0% ( 0%)    0% ( 0%)  Oct 05 15:30  mynas01(1574419105)_test_restore.1 (snapmirror)
  0% ( 0%)    0% ( 0%)  Oct 05 15:27  snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0 (snapmirror)

10. snap list test_restore

Volume test_restore
working...
 
  %/used       %/total  date          name
----------  ----------  ------------  --------
  0% ( 0%)    0% ( 0%)  Oct 05 15:30  mynas01(1574419105)_test_restore.1
  0% ( 0%)    0% ( 0%)  Oct 05 15:27  snapshot_for_smtape.6a1045a6-1050-11e2-bc32-00a098186ab2.0