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Re: Nasty bug?

To: Bogdan Costescu <bogdan.costescu@xxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Nasty bug?
From: Eric Sandeen <sandeen@xxxxxxx>
Date: Fri, 1 Aug 2003 10:39:50 -0500 (CDT)
Cc: Paul Furness <paul.furness@xxxxxxxxxxxxxxx>, <linux-xfs@xxxxxxxxxxx>
In-reply-to: <Pine.LNX.4.44.0308011723560.14068-100000@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On Fri, 1 Aug 2003, Bogdan Costescu wrote:

> The numbers are not sequential, but they are monotonically increasing :-)
> The difference between any 2 values is 8388608. Now if these are 512 byte 
> sectors, this is exactly 4294967296 bytes which is 2^32...
> 
> This won't help you directly... but might give somebody some idea :-)

The maximum AG size is 4G, for a very large fliesystem.  mkfs.xfs writes
allocation group headers at the start of each AG.

howver, if this was split into small pieces & mkfs'd, then the AGs should
not be that large...  hm.

-Eric


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