Subject: Re: Data corruption issues, probably involving ffs2 and >1Tb
To: Daniel Carosone , Nino Dehne <ndehne@gmail.com>
From: Brian Buhrow <buhrow@lothlorien.nfbcal.org>
List: tech-kern
Date: 01/21/2007 15:39:26
	Hello Dan.  I've been following this thread somewhat closely, though
not with agonizing detail.  I have a NetBSD-3.x system with a 2.1TB FFSV2
filesystem built atop a 7 disk raid 5  set using SATA (wd) disks.  Are you
suggesting that if I run a file off of that filesystem through MD5 multiple
times, that you think I'll see corruption?  If that's the case, I'll be
happy to run some tests, with variously sized files, and let you know the
results.  Anecdotally speaking, I've been running this system for about 9
months, and I've not seen any problems what so ever with the filesystem or
the files on it.
	So, what test should I perform to help expose this problem?
-thanks
-Brian

On Jan 22,  9:05am, Daniel Carosone wrote:
} Subject: Re: Data corruption issues, probably involving ffs2 and >1Tb
} 
} --NMuMz9nt05w80d4+
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} On Mon, Jan 22, 2007 at 08:45:19AM +1100, Daniel Carosone wrote:
} >  *  - ~1.1Tb ffs2 on cgd on raidframe R5 on 5x wd(4) NetBSD 3.x
} 
} Apologies. It's 4.0_BETA2 from mid december.
} 
} > The next thing to try, if you can, is a -current (or 4-beta) kernel to
} > see if any filesystem fixes since 3.x have been missed. =20
} 
} =2E. which makes this less relevant, but it would still be useful to
} confirm with a recent -4 or current.
} 
} --
} Dan.
} 
} 
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>-- End of excerpt from Daniel Carosone