Re: How many 750G disks can can fit into an aggregate?

I have a GX arriving this week. The underlying aggregates still can't grow past 16TB. You need to stripe across these with the High Performance Option to obtain the larger volume sizes, but you currently lose some of the functionality of 7G flexvols in the whole process.

tmac wrote:

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 mailto: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
<mailto:scl@sasha.acc.virginia.edu>>
 >>
 >>Date: Fri, 19 Oct 2007 17:38:13
 >>To:toasters@mathworks.com <mailto: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 <mailto:scl@virginia.edu>
    phone: 434-924-0640
 >>
 >>University of Virginia               ITC Unix Support
 >
 >

-- --tmac

RedHat Certified Engineer #804006984323821