topic Re: Moving Shelves from one rack to another: can I just faill over the controller? in ONTAP Hardware

Moving Shelves from one rack to another: can I just faill over the controller?

SEANTRACY — Thu, 05 Jun 2025 04:10:42 GMT

6240 running 8.1.3 and we need to 2 of 5 move shelves from one rack to another. Can I fail over the controller then power down the controller and shelves, move them, power them back on and fail back? I have two shleves I need to move.

Re: Moving Shelves from one rack to another: can I just faill over the controller?

aborzenkov — Fri, 05 Jun 2015 20:35:34 GMT

Is there data (aggregates) on these disks?

Re: Moving Shelves from one rack to another: can I just faill over the controller?

SEANTRACY — Fri, 05 Jun 2015 20:49:36 GMT

These are production shelves with aggregates volumes.

Re: Moving Shelves from one rack to another: can I just faill over the controller?

rwelshman — Fri, 05 Jun 2015 22:55:12 GMT

If you power down the shelves, any data volumes located on those shelves would not be available. So you would need an outage for those volumes, unless you can clear off the aggregates prior to the move. Are you running 7-mode or C-mode?

Re: Moving Shelves from one rack to another: can I just faill over the controller?

aborzenkov — Sat, 06 Jun 2015 04:44:49 GMT

In this case there is no supported way to do it online. Hot shelf unplug is supported starting with 8.2.1 and even then only for shelves containing unused unowned disks.

Re: Moving Shelves from one rack to another: can I just faill over the controller?

Nikola — Thu, 18 Jun 2015 12:42:41 GMT

If it's not to late ...

This type of move is offline / requires extra available space.

You can unassign disks from one shelf (if you can spare the space :). Make shure it's the last one in chain.

If that goes OK, you can switch off the shelf, and move it to another rack.

Add shelf (by the book, as if it was new shelf).

Assign owner to each disk.

If it's OK, you can repeat procedure for each shelf.

Brute force, but might do the job.