Hi everyone, we started using NDMP over a celerra NAS (NS480) since 2 months and while trying some test restore operation we discovered the following behaviour:
if we restore a differential backup of a filesystem we receive in the restore operation also files that have been deleted between the full backup and the differential.
In other words:
If I then ask for a restore of the image at T=1 then I have restored the following:
/dir/file_a' AND /dir/file_b
which is not what I would like to have restored. I would like to have instead just /dir/file_a'.
Now my questions in decreasing order of relevance:
Is there a way to have NDMP Differential Backup operation keep track of the deleted files?
Is that the normal behaviour of NDMP restore?
Is there a reason why this behaviour has not been already implemented on TSM?
Thanks for any help,
Tommaso
if we restore a differential backup of a filesystem we receive in the restore operation also files that have been deleted between the full backup and the differential.
In other words:
| Time | Files in the filesystem | Operation |
| T=0 | /dir/file_a /dir/file_b | Full NDMP Backup |
| T=0.5 | /dir/file_a' | - |
| T=1 | /dir/file_a' | Differentail NDMP Backup |
If I then ask for a restore of the image at T=1 then I have restored the following:
/dir/file_a' AND /dir/file_b
which is not what I would like to have restored. I would like to have instead just /dir/file_a'.
Now my questions in decreasing order of relevance:
Is there a way to have NDMP Differential Backup operation keep track of the deleted files?
Is that the normal behaviour of NDMP restore?
Is there a reason why this behaviour has not been already implemented on TSM?
Thanks for any help,
Tommaso
