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Date:      Wed, 08 Jun 2005 16:08:11 +0200
From:      "Frantisek Rysanek" <Frantisek.Rysanek@post.cz>
To:        freebsd-questions@freebsd.org
Subject:   12TB GEOM stripe, newfs, then fsck: cannot alloc 768053748 bytes for blockmap
Message-ID:  <42A717EB.8095.9574FF2F@localhost>

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Dear everyone, 

this is not an important issue, but I'd like to ask anyway, 
just in case the solution was obvious: 

I've bundled three 4TB RAID boxes using GEOM::stripe into a 
single 12TB volume. I didn't partition it, I just created UFS 
on it using newfs (a "dangerously dedicated" volume). 
This is not a production setup, I'm just testing the hardware.

I thought "fsck" would be a plausible benchmarking tool. 

-bash-2.05b# fsck_ufs /dev/stripe/data
** /dev/stripe/data
cannot alloc 768053748 bytes for blockmap

***** FILE SYSTEM MARKED DIRTY *****

After a forced mount, the 12TB volume works fine. It just 
can't be fsck'ed. 

The machine is a dual Xeon/Nocona + i7520, with 2 GB of RAM, 
running FreeBSD 5.4-RELEASE with an SMP kernel.

Any ideas are welcome :-) 

Frank Rysanek




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