Dedicated Storage Node cannot save remote data from client

Question

Hi, Dedicated Storage Node cannot save remote data from client. Cannot open a session with backup server. Best regards, M*

Peregrine1 · Answer

Dedicated Storage is backung up his own savesets, but the error message still appears.SN keep trying contacting client, it's not able to create a save session.Best regards,M*

HabibG2 · Answer

Dedicated Storage Node (DSN) is used to store local data ( the client the storage node is attaches to) . To be able to backup data of remote client you will need Storage Node (SN). You need seperate licenses for DSN and SN.

HabibG2 · Answer

How is your client configured?
What is defined in the Storage node field? For DSN you must use you the Client FQN as your storage node.
Under Monitor, in the Log tab have a look how the backup is progressing.
Take a look at the Daemon.log for error message.

ble1 · Answer

Either you are trying to backup something mounted on server which doesn't belong there, some data not from box or naming convention (aliases not set properly) has mismatch where same box is seen as different one (multihomed or hostname not translated to FQDN).

ccampbell4 · Answer

This problem still exists and pops up occasionally when storage nodes are trying to back up their own local data.

The storage node ONLY has itself and nsrserverhost as storage nodes.

It complains -

* beasttorls3:/boot 1 retry attempted

* beasttorls3:/boot 39078:save: SYSTEM error: Dedicated storage node beasttorls3 cannot save remote data from client coretorls10.

* beasttorls3:/boot

* beasttorls3:/boot 5777:save: Cannot open save session with coretorls10

* : Failed with error(s)

Where beasttorls3 is a Dedicated Storage Node

and coretorls10 is the nsrserverhost (master Networker server)

Would EMC please get off their collective asses and address this issue?

coganb · Answer

Have you opened a Service Request with support for this?  If not, please do so, so that we can investigate this and get it fixed. -Bobby

elvinperez · Answer

Hello, Verified file hosts both servers. Regards, elvin...E

ble1 · Answer

Craig Campbell wrote:This problem still exists and pops up occasionally when storage nodes are trying to back up their own local data.The storage node ONLY has itself and nsrserverhost as storage nodes.It complains - * beasttorls3:/boot 1 retry attempted * beasttorls3:/boot 39078:save: SYSTEM error: Dedicated storage node beasttorls3 cannot save remote data from client coretorls10. * beasttorls3:/boot * beasttorls3:/boot 5777:save: Cannot open save session with coretorls10      * :  Failed with error(s) Where beasttorls3 is a Dedicated Storage Nodeand coretorls10 is the nsrserverhost (master Networker server)Would EMC please get off their collective ***** and address this issue? I have seen this sometimes with nsrauth enabled.  Is this your case?

ccampbell4 · Answer

Apparently some enhanced authorization was enabled quietly and by

default at some version upgrade in the past.

I followed some instructions from EMC to DISABLE the (useless in our

environment) feature and am now waiting to see if the problem remains.

(Change the Authentication Mode field to be: 0.0.0.0/0,oldauth )

No one has yet explained to my HOW/WHY enhanced authentication would

result in this intermittent issue. And more importantly, if this is a

know issue why hasn't it been corrected?

Yes, I am working on the tenuous assumption that some client somewhere

might actually require their enhanced authentication. In our case,

actually having reliable backups is much more critical.

Has anyone vetted this new security mechanism to see if it actually does

enhance anything in the security realm? Just curious.

I should know within a week or two if this corrects the issue.

Hoping.. last time I raised this with EMC (perhaps a year ago or more)

their solution was to upgraded the dedicated storage nodes to non

dedicated storage nodes ($$).

Cheers,

-craig

ble1 · Answer

AFAIK this is known (at least to some people it is) and nsrauth is supposed to be fixed in 7.5.3.x code, but I will stick to 7.5.2.x for now.

NetWorker

Dedicated Storage Node cannot save remote data from client

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