From: Dave Chinner <david@fromorbit.com>
To: david@lang.hm
Cc: xfs@oss.sgi.com
Subject: Re: 128TB filesystem limit?
Date: Fri, 26 Mar 2010 10:54:33 +1100 [thread overview]
Message-ID: <20100325235433.GM3335@dastard> (raw)
In-Reply-To: <alpine.DEB.2.00.1003251609160.12435@asgard.lang.hm>
On Thu, Mar 25, 2010 at 04:15:42PM -0700, david@lang.hm wrote:
> I'm working with a raid 0 (md) array on top of 10 16x1TB raid 6
> hardware arrays.
>
> fdisk -l shows me 10 drives like
>
> WARNING: GPT (GUID Partition Table) detected on '/dev/sdk'! The util
> fdisk doesn't support GPT. Use GNU Parted.
>
>
> Disk /dev/sdk: 13999.9 GB, 13999999025152 bytes
> 255 heads, 63 sectors/track, 1702069 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x00000000
>
> Device Boot Start End Blocks Id System
> /dev/sdk1 1 267350 2147483647+ ee EFI GPT
>
> and then the md0 device as
>
> Disk /dev/md0: 139999.9 GB, 139999989596160 bytes
> 2 heads, 4 sectors/track, -1 cylinders
> Units = cylinders of 8 * 512 = 4096 bytes
> Disk identifier: 0x00000000
>
> Disk /dev/md0 doesn't contain a valid partition table
>
>
> I then did mkfs.xfs /dev/md0
>
> but a df is showing me 128TB
What is in /proc/partitions?
> is this just rounding error combined with the 1000=1k vs 1024=1k
> marketing stuff,
Probably.
> or is there some limit I am bumping into here.
Unlikely to be an XFS limit - I was doing some "what happens if"
testing on multi-PB sized XFS filesystems hosted on sparse files
a couple of days ago....
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2010-03-25 23:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-25 23:15 128TB filesystem limit? david
2010-03-25 23:54 ` Dave Chinner [this message]
2010-03-26 0:03 ` david
2010-03-26 0:35 ` Dave Chinner
2010-03-26 2:02 ` david
2010-03-26 4:35 ` Eric Sandeen
2010-03-26 4:56 ` david
2010-03-26 6:09 ` Stan Hoeppner
2010-03-26 7:26 ` Steve Costaras
2010-03-27 9:06 ` Emmanuel Florac
2010-03-27 14:28 ` Steve Costaras
2010-03-27 18:45 ` david
2010-03-28 21:17 ` Peter Grandi
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