From owner-freebsd-fs@FreeBSD.ORG  Wed Feb 14 17:22:43 2007
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From: Randy Bush <randy@psg.com>
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Cc: freebsd-fs@freebsd.org, Oliver Fromme <olli@lurza.secnetix.de>
Subject: Re: comments on newfs raw disk ?  Safe ? (7 terabyte array)
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> On 02/14/07 00:48, Randy Bush wrote:
>> 4TB
>> newfs  -b 16384 -f 2048 -i 262144
>> 
>> # time fsck -y /dev/da1
>> ** /dev/da1
>> ** Last Mounted on /mnt
>> ** Phase 1 - Check Blocks and Sizes
>> ** Phase 2 - Check Pathnames
>> ** Phase 3 - Check Connectivity
>> ** Phase 4 - Check Reference Counts
>> ** Phase 5 - Check Cyl groups
>> 2 files, 2 used, 2173822273 free (17 frags, 271727782 blocks, 0.0% fragmentation)
>> 
>> ***** FILE SYSTEM MARKED CLEAN *****
>> 
>> real    8m58.571s
>> user    0m31.769s
>> sys     0m1.246s
> 
> Perfect.. Now, if you could only leave it empty, your fscks would take 
> no time at all!! :)

sorry.  forgot to remention that this is a backup store for a dozen
systems' rdump/restores.  so it will have a few hundred large files.
so we do not expect fsck time to go radically gigh.

randy