NDMP Incremental backup on Netapp filer
Good morning everyone.
Do any of you have a NDMP inclremental backup of a filer or Celerra in your platform?
We are trying to switch to incremental backup from full backup, due to media comsuption, but we are having some problems.
The share we are testing over has around 15 million of files and near to 1 TB, so incremental and full backups spend almost same time to complete.
The reason is that incremental backup remains in "Begin writing" state for hours, trying to retrieve the metadata about the files of the share.
I'd be very grateful if you could help me to reduce the time of this incremental backup, either modifying NBU conf or Filer conf.
Thanks in advance!!!
as we only carry out one full save per month anyway.
Could you possibly break your save down into more manageable "chunks"? I know NDMP saves do not allow the use of wildcards, so this would only be viable if you have a reasonable number of "folders" within the volume your are backing up. [EDIT You'd also need to utilise more drives if these streams were to run concurrently due to the inability (at the moment?) to multiplex NDMP saves to a single drive. /EDIT]
e.g.
NEW_STREAM
/vol/vol1/dir1
/vol/vol1/dir2
NEW_STREAM
/vol/vol1/dir3
NEW_STREAM
/vol/vol1/dir4
/vol/vol1/dir5
/vol/vol1/dir6The only other way we've got around this lack of NDMP wildcard functionality is to NFS mount the volume to our Solaris master & utilise the wildcards there - obviously you lose the speed of the NDMP in such a configuration, but it enabled us to reduce the backup window in the long run.