topic Re: How do I specify an IP interface for a SnapVault policy in Protection Manager? in ONTAP Discussions

How do I specify an IP interface for a SnapVault policy in Protection Manager?

christop — Thu, 05 Jun 2025 07:21:38 GMT

Hi:

I created a policy in Protection Manager to kick off a snapvault backup. We have our e0M interfaces restricted for management only, and all snapvault traffic is directed toward the VIF interface. We do this with the "snapvault.access host=all AND if=vif1".

However, my snapvault job failed because Protection Manager kicked off the relationship with the IP of the system that it discovered - which happens to be e0M.

Here's an example - notice how the source qtree is using the IP of the system, instead of the hostname:

tgt Thu Nov 19 10:08:00 EST ChrisPoz_backup create: Target_start
dst Thu Nov 19 10:08:00 EST 113.132.194.251:/vol/test1/NAS_IN emlana16:/vol/ChrisPoz_backup/NAS_IN Request (Retry)
dst Thu Nov 19 10:08:00 EST 113.132.194.251:/vol/test1/- emlana16:/vol/ChrisPoz_backup/ChrisPoz_emlana14_test1 Request (Retry)
dst Thu Nov 19 10:08:01 EST 113.132.194.251:/vol/test1/qtree_OLD_IN emlana16:/vol/ChrisPoz_backup/qtree_OLD_IN Abort (could not read from socket)
dst Thu Nov 19 10:08:01 EST 113.132.194.251:/vol/test1/- emlana16:/vol/ChrisPoz_backup/ChrisPoz_emlana14_test1 Abort (could not read from socket)
dst Thu Nov 19 10:08:02 EST 113.132.194.251:/vol/test1/NAS_IN emlana16:/vol/ChrisPoz_backup/NAS_IN Abort (could not read from socket)
tgt Thu Nov 19 10:08:03 EST ChrisPoz_backup create: Target_end

How do I specify that Protection Manager use the hostname of a system - or point it to the VIF interface. I do NOT want to rediscover this system through Operations Manager!

Thanks,

Chris

Re: How do I specify an IP interface for a SnapVault policy in Protection Manager?

adaikkap — Thu, 19 Nov 2009 17:49:11 GMT

Hi Chris,

To specify a preferred interface for backups.

Pls specify the following options in the filer.

filer> options ndmpd.preferred_interface
ndmpd.preferred_interface e0b
filer>

Protection Manager will use the perferred interace set by the above options on the filer, for backup transfers.

Below is the job snippet, which show whats the interface thats being used.

Event Id: 1077646

Event Status: normal

Event Type: job-progress

Job Id: 50125

Timestamp: 17 Nov 2009 19:14:06

Message: Retrieving preferred interfaces

Error Message:

Event Id: 1077647

Event Status: normal

Event Type: job-progress

Job Id: 50125

Timestamp: 17 Nov 2009 19:14:06

Message: Retrieved preferred interfaces (XXX.XXX.XXX.XXX)

Error Message:

Regards

adai

Re: How do I specify an IP interface for a SnapVault policy in Protection Manager?

kmancy — Wed, 21 Apr 2010 04:50:09 GMT

Hi Adai,

I'm trying to do the same but manually on the filer.

I have specified

options ndmpd.preferred_interface e0b on both the source and destination filers.

Here is the commnad I run on the destination filer.

snapvault start -S PNFR002:/vol/pnfr002_VMFS_intnr_24e/intnr_24e PNFR011:/vol/SV_intnr_24e/SV_intnr

It works but it is using the e0m 100mb network not the e0b specified.

The DNS names of the filers are set to the IP of e0m in DNS.

Thanks,

Ken

Re: How do I specify an IP interface for a SnapVault policy in Protection Manager?

adaikkap — Thu, 22 Apr 2010 13:53:19 GMT

Hi Ken,

options ndmpd.preferred_interface is when you use ndmp extensions to create SV relationships.

When you use the cli(SnapVault) change the command like the one below.

snapvault start -S PNFR002-e0b:/vol/pnfr002_VMFS_intnr_24e/intnr_24e PNFR011-e0b:/vol/SV_intnr_24e/SV_intnr

Or replace the hostnames with ip address.

Regards

adai

Re: How do I specify an IP interface for a SnapVault policy in Protection Manager?

rogerg — Mon, 28 Jun 2010 18:11:30 GMT

Adai,

If you have multiple IP interfaces that you want to direct specific transfers over, can you control which interface gets used by the Protection Policy? In other words, use e0b for some of the jobs and use e1b for others so that you can take advantage of 2 paths vs. just one?

Roger

Re: How do I specify an IP interface for a SnapVault policy in Protection Manager?

adaikkap — Mon, 28 Jun 2010 18:16:15 GMT

Hi Roger,

As I mentioned, its a filer level option and not Protection Policy or Dataset level one.

Since the options ndmpd_preferredinterface accepts only one port name its not possible.

Regards

adai