topic Re: how to setup snapmirror between two sites using spare shelf? in ONTAP Discussions

how to setup snapmirror between two sites using spare shelf?

rbauman79 — Thu, 05 Jun 2025 05:23:49 GMT

i have to setup several snapmirror relationships between two sites both with a fas3020

site 1

has about 9TB of data/snapshots currently that needs to be setup for replication.

site 2

has about 5.5TB of data/snapshots

i have 4 total (2 in each site) spare MK14II 1TB drive shelfs.

Is there a way to do a snapmirror initialize to one of the shelfs, then ship it to the other site, attach the shelf and complete the snapmirror initialize? i have tried doing it over the wire (Site one has a 50mb pipe, site 2 has a 20mb pipe) but i kept having issues with it stopping and saying idle with restart checkpoint. Second issue is it is taking too long to complete the initial transfer.

Re: how to setup snapmirror between two sites using spare shelf?

rbauman79 — Mon, 01 Dec 2014 20:49:55 GMT

i found this thread but just wanted to confirm this is the supported method.

http://community.netapp.com/t5/Data-ONTAP-Discussions/Volume-SnapMirror-Seeding-Using-Spare-Disk-Shelf/td-p/65887

Re: how to setup snapmirror between two sites using spare shelf?

aborzenkov — Tue, 02 Dec 2014 03:46:57 GMT

7-Mode or C-Mode?

Re: how to setup snapmirror between two sites using spare shelf?

rbauman79 — Tue, 02 Dec 2014 10:23:04 GMT

7-mode
Each site only has one controller in it. Fas-3020

Re: how to setup snapmirror between two sites using spare shelf?

aborzenkov — Tue, 02 Dec 2014 10:34:04 GMT

Yes, it is possible. You would need to shutdown source filer to remove shelves anyway, so there is no need to offline anything - halt filer, unplug shelves. On destination filer you can attach shevles online;l new aggregate will be detected as foreign and you will need to online it. After that just resync from source to re-create SnapMirror.

Re: how to setup snapmirror between two sites using spare shelf?

rbauman79 — Thu, 04 Dec 2014 03:38:42 GMT

awesome thanks for the clarification.