I&#39;ve done this kind of thing a few times and by far the biggest hassle is dealing with the server side of things. (i.e. getting all of the hosts to look for their luns/cifs/nfs vols on a new head)<div><br></div><div>Roughly, here are the steps I took for moving some shelves to a new head a while back.</div>
<div><br></div><div>* create new igroups/iscsi security on the destination head</div><div>* get a new /etc/exports file ready ahead of time (on destination head) with the new vols that will be exported.</div><div>* get new /etc/exports file ready ahead of time (on source head) that has the moving volumes removed from it, so it doesn&#39;t complain about missing vols.</div>
<div>* unmap luns that are going to move to new head.</div><div>* boot into maint. mode and offline the moving aggregates</div><div>* shutdown the filer</div><div>* move shelf to new head and cable up</div><div>* disk assign</div>
<div>* aggr online</div><div>* aggr rename</div><div>* map back luns to hosts</div><div>* copy over new exports file and export the new vols (exportfs -a)</div><div><br></div><div>Good luck!</div><div><br><div class="gmail_quote">
On Wed, May 18, 2011 at 7:28 AM, Steve Losen <span dir="ltr">&lt;<a href="mailto:scl@sasha.acc.virginia.edu">scl@sasha.acc.virginia.edu</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
Hi Toasters,<br>
<br>
I need to physically move some disks/aggregates to another<br>
controller.  Do you see anything wrong with this procedure?<br>
<br>
1) upgrade DOT to the same version on both heads  (7.3.3)<br>
<br>
2) shut down and power off both heads<br>
<br>
3) physically move the disk shelves<br>
<br>
4) boot the destination head in maintenance mode and use<br>
   &quot;disk assign&quot; to take ownership of the moved disks<br>
<br>
5) boot the destination head normally<br>
<br>
6) aggr online the foreign aggregates<br>
<br>
<br>
I am concerned about step 4 above.  Will it work or do I need<br>
to boot the source filer in maintenance mode and change the disk<br>
ownership to the destination head before moving the disks?<br>
<br>
In step 5 some of the foreign aggregates will have names that<br>
conflict with native aggregates.  I presume that when ONTAP<br>
boots it will automatically rename the foreign aggrs as<br>
necessary.  Or must I rename them on the source filer beforehand?<br>
<br>
I know that some of you do this routinely, so I appreciate<br>
any words of advice.<br>
<br>
Steve Losen   <a href="mailto:scl@virginia.edu">scl@virginia.edu</a>    phone: <a href="tel:434-924-0640" value="+14349240640">434-924-0640</a><br>
<br>
University of Virginia               ITC Unix Support<br>
<br>
<br>
</blockquote></div><br>-- <br>Romeo Theriault<br>System Administrator<br>Information Technology Services<br>
</div>