2 Iron

Strange Flux on Backup NDMP

Hello everybody,

I have a SAN (CX4 and VNX) with a backup NDMP of many files on this NAS.

But I do not understand the path of the backup stream.

Data are from the NAS pass through the NWS and the SN and finally go on DataDomain. Is this normal ?

The flow should not go directly from the NAS to the SN and finally on DD ?



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3 Argentium

Re: Strange Flux on Backup NDMP


By default this is the behaviour you will see doing NDMP backups and the devices are not attached directly to the filer. NetWorker sends the data to the NetWorker server which then works out which devices it can use for the backup and then passes the data to the relevant storage node.

You can however configure the data to be sent directly to the Storage node you want to by adding flags to the backup command in the client definition.

From the Administration Guide I believe you have to add -M and -P to do this.

you will also have to add the NDMP client name into the Storage node servers file otherwise the backup will fail.

Please see NetWorker Admin Guide NetWorker Server Support for NDMP section for more details.

Hope this helps.


Bill Mason