topic Re: How run reallocate after growing an aggregate? in ONTAP Discussions

How run reallocate after growing an aggregate?

nicholas4704 — Fri, 28 Feb 2014 11:44:54 GMT

Hello

I've just added more disks to my data aggregate. I want to stripe all existing data to old+new disks. How can I do this in C-mode?

In 7-mode it was reallocate start -f /vo/vol4

There is reallocate start command in c-mode, but I can't find description for it, so don't know what it really does.

Thank you.

Nikolajs

Re: How run reallocate after growing an aggregate?

StorageAddict — Fri, 28 Feb 2014 11:59:15 GMT

Nikolajs,

Please see the "Reallocate Best Practices" guide here: http://www.netapp.com/us/media/tr-3929-new.pdf

I believe the command your looking for is on page 7.

Hope this helps,

Mark

Re: How run reallocate after growing an aggregate?

nicholas4704 — Fri, 28 Feb 2014 12:16:05 GMT

Thank you Mark for quick reply.

Do you mean free space reallocation? I think it is no what I need.

Check page 5 of that TR for best practice. "Use forced reallocation after adding disks to an aggregate so that existing data is spread onto the new disks, reducing the time required to balance the load across all the disks"

I suppose it it:

reallocate start -vserver vs_name -path /vol/vol_name -force true

Can anybody confirm that this should be run after adding disks?

Nikoaljs.

Re: How run reallocate after growing an aggregate?

nicholas4704 — Fri, 28 Feb 2014 15:51:53 GMT

Look like the answer is in the same TR http://www.netapp.com/us/media/tr-3929-new.pdf

2.3 shows reallocate options

2.5 recommends to use force reallocation

Use forced reallocation after adding disks to an aggregate so that existing data is spread onto the new

disks, reducing the time required to balance the load across all the disks.

Re: How run reallocate after growing an aggregate?

LiaPenn — Mon, 17 Aug 2015 18:48:02 GMT

It appears this document (http://www.netapp.com/us/media/tr-3929-new.pdf) is no longer available.... I get a 404 error "File or Directory Not Found"

Do you know why?

Re: How run reallocate after growing an aggregate?

fenixryan — Fri, 20 Nov 2015 10:22:05 GMT

Could someone from netapp please reply with regards to the document being removed. Has it been superseeded, if so where is the new doc.

@LiaPenn wrote:
It appears this document (http://www.netapp.com/us/media/tr-3929-new.pdf) is no longer available.... I get a 404 error "File or Directory Not Found"
Do you know why?

Re: How run reallocate after growing an aggregate?

ol15 — Fri, 27 Nov 2015 10:36:21 GMT

you can find a link from here :

http://www.getshifting.com/wiki/reallocate

on netapp:

https://fieldportal.netapp.com/viewcontent.asp?qv=1&docid=33904