They can officially grow to 16 x 24 (aggr size per node x supported nodes in a cluster).  I believe you can have multiple aggregate members on the same filer so in theory you could have 25 16TB aggrs on a 6070c x 12 (cluster limit) to make a single striped volume of ~4.8PB.  In theory…..

Good luck backing that up though.

Jeff Kennedy

QCT Engineering Compute

858-651-6592

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of tmac
Sent: Monday, October 22, 2007 7:15 AM
To: Andrew Siegel
Cc: toasters@mathworks.com
Subject: Re: How many 750G disks can can fit into an aggregate?

You could try GX...

I have 17.3TB and a 20.73TB volumes (after Formatting, after WAFL...i.e. USEABLE)

Not sure (yet) how large these can grow, but they are striped aggregates across two heads
(soon to be four!).

--tmac

On 10/22/07, Andrew Siegel <abs@blueskystudios.com> wrote:

In my opinion (as a 12-year customer), the 16TB limit is the number one
deficiency in NetApp software at the moment, and perhaps their biggest
deficiency ever.  I would be very surprised if they weren't losing
customers over this issue.


Jeff Bryer wrote:
> By simple division it would be about 21 disks.  Which would translate to a shelf
> and a half.  Given the raid group size is 14 (max 16) for ATA disks, it would get
> pretty wasteful if you're trying to maximize your aggregate size.  3 shelves would
> give you 2 aggregates but you'd need 4 raid groups (8 drives gone to parity).
>
> I hope NetApp will raise the max raw aggregate size soon.  I
>
> On Fri, Oct 19, 2007 at 10:20:08PM +0000, Tim McCarthy wrote:
>
>>I am running GX but the vol/aggr code is supposed to be the same.
>>
>>I have 26 disks of 750 per head.
>>I played at the beginning and think I was limited to 21 or 22 disks in an aggregate.
>>
>>It did take the better part of the day to re-zero the disks again
>>
>>They right size to I think 632gb
>>
>>--tmac
>>
>>Sent from my Verizon Wireless BlackBerry
>>
>>-----Original Message-----
>>From: "Stephen C. Losen" < scl@sasha.acc.virginia.edu>
>>
>>Date: Fri, 19 Oct 2007 17:38:13
>>To:toasters@mathworks.com
>>Subject: How many 750G disks can can fit into an aggregate?
>>
>>
>>
>>We're going to buy some shelves of 750G ATA drives.  An aggregate
>>is limited to 16T "raw" (which I presume includes parity disks).
>>Not having any 750G drives yet, we don't know what they size down to.
>>Can anyone tell us how many 750G disks (including parity) that you
>>can stuff into an aggregate?
>>
>>
>>Steve Losen   scl@virginia.edu     phone: 434-924-0640
>>
>>University of Virginia               ITC Unix Support
>
>

--
--tmac

RedHat Certified Engineer #804006984323821