Hi people,
We are heavy users of snapmirror DR.
We started to convert those relations to XDP from DP.
We used: - break snapmirror - snapmirror release on source - snapmirror delete on target - wait (no idea what goes on behind the scenes here) - snapmirror create -destination-path <path> -type XDP -policy MirrorAllSnapshots -identity-preserve true - source-vserver <name> -source-cluster <name> - snapmirror resync -destination-path <path>
This works a treat unless you have unprotected volumes.
If there are source volumes flagged unprotected and therefore not on the destination vserver you appear to be doomed. We have found no way to ever resynmc the source to destination vservers.
What you up wirth is something like:
Cluster Source Destination State Status Policy Progress Size Lag SRC svm-esx: svm-esx-dr: Broken-off Idle MirrorAllSnapshots - 39GB - SRC svm-esx:esx_03 svm-esx-dr:esx_slinux_03 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_04 svm-esx-dr:esx_slinux_04 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_00 svm-esx-dr:esx_sscratch_00 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_01 svm-esx-dr:esx_sscratch_01 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_10 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_11 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_12 Broken-off Idle MirrorAllSnapshots - - -
The above is hand edited so ignore any errors. You get the idea.
No amount of stuffing around (and there has been a lot) has ever go this relationshp to work properly again.
Anyine else seen this and/or have a solution.
We have guessed that the unprotected flag is no longer supported which is annoying in itself.
Regards, pdg
Peter Gray Ph (direct): +61 2 4221 3770 Information Management & Technology Services Ph (switch): +61 2 4221 3555 University of Wollongong Fax: +61 2 4229 1958 Wollongong NSW 2522 Email: pdg@uow.edu.au Australia URL: http://pdg.uow.edu.au
I think you may have been missing the quiesce to start with....
snapmirror quiesce -source-path svm1:volA -destination-path svm_backup:volA_dst snapmirror break -source-path svm1:volA -destination-path svm_backup:volA_dst volume snapshot autodelete modify -vserver svm_backup -volume volA_dst -enabled false snapmirror delete -source-path svm1:volA -destination-path svm_backup:volA_dst snapmirror create -source-path svm1:volA -destination-path svm_backup:volA_dst -type XDP -schedule my_daily -policy MirrorAllSnapshots snapmirror resync -source-path svm1:volA -destination-path svm_backup:volA_dst
-tmac
*Tim McCarthy, **Principal Consultant*
*Proud Member of the #NetAppATeam https://twitter.com/NetAppATeam*
*I Blog at TMACsRack https://tmacsrack.wordpress.com/*
On Thu, Jan 3, 2019 at 8:41 PM Peter D. Gray pdg@uow.edu.au wrote:
Hi people,
We are heavy users of snapmirror DR.
We started to convert those relations to XDP from DP.
We used: - break snapmirror - snapmirror release on source - snapmirror delete on target - wait (no idea what goes on behind the scenes here) - snapmirror create -destination-path <path> -type XDP -policy MirrorAllSnapshots -identity-preserve true - source-vserver <name> -source-cluster <name> - snapmirror resync -destination-path <path>
This works a treat unless you have unprotected volumes.
If there are source volumes flagged unprotected and therefore not on the destination vserver you appear to be doomed. We have found no way to ever resynmc the source to destination vservers.
What you up wirth is something like:
Cluster Source Destination State Status Policy Progress Size Lag SRC svm-esx: svm-esx-dr: Broken-off Idle MirrorAllSnapshots - 39GB - SRC svm-esx:esx_03 svm-esx-dr:esx_slinux_03 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_04 svm-esx-dr:esx_slinux_04 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_00 svm-esx-dr:esx_sscratch_00 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_01 svm-esx-dr:esx_sscratch_01 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_10 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_11 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_12 Broken-off Idle MirrorAllSnapshots - - -
The above is hand edited so ignore any errors. You get the idea.
No amount of stuffing around (and there has been a lot) has ever go this relationshp to work properly again.
Anyine else seen this and/or have a solution.
We have guessed that the unprotected flag is no longer supported which is annoying in itself.
Regards, pdg
Peter Gray Ph (direct): +61 2 4221 3770 Information Management & Technology Services Ph (switch): +61 2 4221 3555 University of Wollongong Fax: +61 2 4229 1958 Wollongong NSW 2522 Email: pdg@uow.edu.au Australia URL: http://pdg.uow.edu.au
Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
I think your problem might be the snamirror release on the source. That removes the snapmirror baseline snapshot on the source, so if there are no other snapshots in common, resync is impossible.
The procedure tmac outlined has worked for us across several hundred DP to XDP conversions.
John
On Fri, Jan 04, 2019 at 12:36:41PM +1100, Peter D. Gray wrote:
Hi people,
We are heavy users of snapmirror DR.
We started to convert those relations to XDP from DP.
We used:
- break snapmirror
- snapmirror release on source
- snapmirror delete on target
- wait (no idea what goes on behind the scenes here)
- snapmirror create -destination-path <path> -type XDP -policy MirrorAllSnapshots -identity-preserve true
- source-vserver <name> -source-cluster <name>
- snapmirror resync -destination-path <path>
This works a treat unless you have unprotected volumes.
If there are source volumes flagged unprotected and therefore not on the destination vserver you appear to be doomed. We have found no way to ever resynmc the source to destination vservers.
What you up wirth is something like:
Cluster Source Destination State Status Policy Progress Size Lag SRC svm-esx: svm-esx-dr: Broken-off Idle MirrorAllSnapshots - 39GB - SRC svm-esx:esx_03 svm-esx-dr:esx_slinux_03 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_04 svm-esx-dr:esx_slinux_04 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_00 svm-esx-dr:esx_sscratch_00 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_sscratch_01 svm-esx-dr:esx_sscratch_01 Uninitialized Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_10 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_11 Broken-off Idle MirrorAllSnapshots - - - SRC svm-esx:esx_10 svm-esx-dr:esx_12 Broken-off Idle MirrorAllSnapshots - - -
The above is hand edited so ignore any errors. You get the idea.
No amount of stuffing around (and there has been a lot) has ever go this relationshp to work properly again.
Anyine else seen this and/or have a solution.
We have guessed that the unprotected flag is no longer supported which is annoying in itself.
Regards, pdg
Peter Gray Ph (direct): +61 2 4221 3770 Information Management & Technology Services Ph (switch): +61 2 4221 3555 University of Wollongong Fax: +61 2 4229 1958 Wollongong NSW 2522 Email: pdg@uow.edu.au Australia URL: http://pdg.uow.edu.au
Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
-
John Clear -
Peter D. Gray -
tmac