topic Re: aggregate need? in ONTAP Discussions

aggregate need?

saranraj456 — Thu, 05 Jun 2025 06:58:20 GMT

Why we need an aggregate seprately?

why cant we use a raid group directly?

Regards,

Saran

Re: aggregate need?

nigelg1965 — Mon, 14 Mar 2011 15:14:34 GMT

Put simply because there can be more that one RAID group in an aggregate.

Depends on size and type of disk, but with a large of small disks there could be several RAID groups (a RAID is the data and parity disks)

Re: aggregate need?

joostvandrenth — Tue, 15 Mar 2011 08:49:33 GMT

I do not know why you would want to, but maybe traditional volumes are something to look into?

Re: aggregate need?

saranraj456 — Wed, 16 Mar 2011 12:03:34 GMT

no, i am generally asking the need and use of aggregate.....

Re: aggregate need?

joostvandrenth — Wed, 16 Mar 2011 14:55:42 GMT

Having evolved from a traditional volume (which can be seen as 1-1 relation between a RaidGroup and a volume) I see an aggregate as the physical to virtual transformation of storage capacity - it is the construct from which you can provision volumes.

Re: aggregate need?

eric_barlier — Thu, 17 Mar 2011 07:08:19 GMT

because it scales better? its more flexible to manage than a set of X disks. There are many reasons. Maybe we can approach this the other way around:

what is bad about using aggregates?

Eric

Re: aggregate need?

ashritha — Sat, 19 Mar 2011 11:52:45 GMT

Hello ,

The reason is aggregate holds the raid group, aggregate is nothing but a raid group.

hope this helps!!

Ashritha.

Re: aggregate need?

satish_pamarthi — Sat, 02 Feb 2013 19:56:29 GMT

if you start using by raid groups, then you have to create a number of raidgroups as per your space requirement.

In the same way, if you start using aggregate, there is no matter of how many raidgroups it is... still u can handle all the raidgroups in the same aggregate.

Re: aggregate need?

bondbhola — Mon, 04 Feb 2013 11:34:57 GMT

Hi Saran,

To use the diskshelf you must bind the disk in aggrigate. you can' create raidgroup witout creating the aggregate.

Thanks,

Bhola Gond

Re: aggregate need?

bondbhola — Mon, 04 Feb 2013 11:36:52 GMT

Below link will help you to understand the relaionship for disk-aggregate-volume.

https://communities.netapp.com/people/BrendonHiggins/blog/2013/02/03/disks-aggregates-volumes-qtrees-and-luns

aggregate need?

saranraj456 — Tue, 05 Feb 2013 03:58:10 GMT

Frndz,

i got an answer already ,its one of my old post.