topic SnapCreator overwritting snapmirror.conf, making changes to volume options? in Data Protection

SnapCreator overwritting snapmirror.conf, making changes to volume options?

ntitlow01 — Thu, 05 Jun 2025 07:06:33 GMT

I am using SnapCreator in a lab environment to perform snapmirror updates. SnapCreator is run out of cron on two-minute intervals. Once last night and once today, the snapmirror.conf on the destination was overwritten and volume options changed. Speaking with NetApp support, SnapCreator could be the culprit. Has anyone else seen this behavior?

Environment:

- Both source and destination arrays are running ONTAP 7.3.3P5

- SC 3.2 and DFM 4.0 (installed on same server)

List of changes from yesterday:

- SnapCreator installed, jobs configured and run

- Array added to DFM (version 4.0)

- Various tests with Protection Manager both with SnapCreator integration and without. (the data set and policy was deleted last night before the first wipe of snapmirror.conf).

Thanks in advance for any thoughts.

-nathan

Here some auditlog snippets from today:

Prior to problem - connections from SC/DFM server:

Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_09:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.0</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_08:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.1</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_02:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.2</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_00:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.3</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_03:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.4</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:15:02 PDT [lvlabfiler01a: api_mpool_01:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><file-read-file><path>/vol/vol0/etc/log/snapmirror.5</path><offset>0</offset><length>1048576</length></file-read-file></netapp>
Wed Oct 27 13:16:33 PDT [lvlabfiler01a: api_mpool_06:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><system-cli><priv>advanced</priv><args><arg>registry</arg><arg>walk</arg><arg>status.if</arg></args></system-cli></netapp>

The Problem:

Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: FILE: DELETE: /etc/snapmirror.conf#1:csrfiler01-a:nathan_iscsi_test lvlabfiler01a:sm_nathan_iscsi_test restart=never - - - -
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: FILE: DELETE: /etc/snapmirror.conf#2:csrfiler01-a:nathan_sm_test2 lvlabfiler01a:sm_nathan_sm_test2 restart=never - - - -
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: FILE: NEW: /etc/snapmirror.conf#1:#Regenerated by registry Wed Oct 27 20:11:47 GMT 2010
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.convert_ucode:on
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.create_ucode:on
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.extent:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.lang:en_US.UTF-8
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.maxdirsize:41861
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.maxfiles:1182916
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.minra:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.no_atime_update:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.no_i2p:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.nosnap:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.nosnapdir:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.nvfail:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.quotas:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.read_realloc:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.schedsnapname:ordinal
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_iscsi_test.snapmirrored:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.convert_ucode:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.create_ucode:on
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.extent:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.lang:en_US.UTF-8
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.maxdirsize:41861
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.maxfiles:311280
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.minra:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.no_atime_update:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.no_i2p:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.nosnap:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.nosnapdir:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.nvfail:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.quotas:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.read_realloc:off
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.schedsnapname:ordinal
Wed Oct 27 13:30:38 PDT [lvlabfiler01a: registry_control:debug]: root: NEW:options.vols.sm_nathan_sm_test2.snapmirrored:off

Post Problem - connections from SC/DFM server:

Wed Oct 27 13:34:45 PDT [lvlabfiler01a: api_mpool_01:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><system-cli><priv>advanced</priv><args><arg>registry</arg><arg>walk</arg><arg>status.if</arg></args></system-cli></netapp>
Wed Oct 27 13:36:26 PDT [lvlabfiler01a: api_mpool_09:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><system-cli><args><arg>vol</arg><arg>lang</arg></args></system-cli></netapp>
Wed Oct 27 13:36:26 PDT [lvlabfiler01a: api_mpool_09:debug]: root@[10.159.2.45]:API:http in:<?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE netapp SYSTEM 'file:/etc/netapp_filer.dtd'> <netapp xmlns="http://www.netapp.com/filer/admin" version="1.0"><system-available-replication-transfers/></netapp>

Re: SnapCreator overwritting snapmirror.conf, making changes to volume options?

lgreg — Wed, 27 Oct 2010 22:04:15 GMT

I cant imagine that snapcreator edits/changes/overwrites the snapmirror.conf

file. Have used it a lot and have yet to experience that scenario.. Yet, the

integration to Protection Manager may be the variable in the mix

Greg Loughmiller

Global Enterprise Applications Solution Lead, NCIE-SAN

Enterprise Applications Solution Team

NetApp

678.982.6099 Mobile Phone

lgreg@netapp.com

From: ntitlow01 <xdl-communities@netapp.com>

Reply-To: "netapp-dev@sgaur.hosted.jivesoftware.com"

<netapp-dev@sgaur.hosted.jivesoftware.com>

Date: Wed, 27 Oct 2010 14:56:21 -0700

To: gregory loughmiller <lgreg@netapp.com>

Subject: "SnapCreator overwritting snapmirror.conf, making changes to volume

options?" [NetApp Community > Products & Solutions > Databases & Enterprise

Apps > SnapCreator]

NetApp Community <http://communities.netapp.com/index.jspa>

SnapCreator overwritting snapmirror.conf, making changes to volume options?

created by ntitlow01 <http://communities.netapp.com/people/ntitlow01> in

SnapCreator - View the full discussion

<http://communities.netapp.com/message/42213#42213>

I am using SnapCreator in a lab environment to perform snapmirror updates.

SnapCreator is run out of cron on two-minute intervals. Once last night and

once today, the snapmirror.conf on the destination was overwritten and

volume options changed. Speaking with NetApp support, SnapCreator could be

the culprit. Has anyone else seen this behavior? Environment:- Both source

and destination arrays are running ONTAP 7.3.3P5- SC 3.2 and DFM 4.0

(installed on same server) List of changes from yesterday:- SnapCreator

installed, jobs configured and run- Array added to DFM (version 4.0)-

Various tests with Protection Manager both with SnapCreator integration and

without. (the data set and policy was deleted last night before the first

wipe of snapmirror.conf). Thanks in advance for any thoughts. -nathan Here

some auditlog snippets from today: Prior to problem - connections from

SC/DFM server:Wed Oct 27 13:15:02 PDT :