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ONTAP Discussions

How run reallocate after growing an aggregate?

nicholas4704

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

6 REPLIES 6

nicholas4704

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.

StorageAddict

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

Mark Clayton
Principal Architect, NCDA|NCIE, NetApp A-Team
Lenovo
919-522-3767 Mobile
mclayton@netapp.com
@storageaddict

LiaPenn

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?  

fenixryan

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?  


 

Hi

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.

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