From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergey Vlasov Subject: Re: avoiding the initial resync on --create Date: Tue, 10 Oct 2006 23:18:28 +0400 Message-ID: <20061010231828.72d68502.vsu@altlinux.ru> References: <20061009125700.GA10191@piper.madduck.net> <20061009134946.GA26122@harddisk-recovery.com> <1160411520.2917.76.camel@fc6.xsintricity.com> <20061010095524.GF7416@boogie.lpds.sztaki.hu> <1160502476.2917.134.camel@fc6.xsintricity.com> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA1"; boundary="Signature=_Tue__10_Oct_2006_23_18_28_+0400_j2v/Ih5t4zPXiJG/" Return-path: In-Reply-To: <1160502476.2917.134.camel@fc6.xsintricity.com> Sender: linux-raid-owner@vger.kernel.org To: Doug Ledford Cc: Gabor Gombas , Erik Mouw , linux-raid mailing list List-Id: linux-raid.ids --Signature=_Tue__10_Oct_2006_23_18_28_+0400_j2v/Ih5t4zPXiJG/ Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 7bit On Tue, 10 Oct 2006 13:47:56 -0400 Doug Ledford wrote: [...] > So, like my original email said, fsck has no business reading any block > that hasn't been written to either by the install or since the install > when the filesystem was filled up more. It certainly does *not* read > blocks just for the fun of it, nor does it rely on anything the > filesystem didn't specifically write. There are fsck implementations which read potentially unwritten blocks. E.g., reiserfsck --rebuild-tree reads every block on the device, finds anything which looks like a tree block and tries to do something with it. This procedure sometimes recovers files which were deleted, and if an uncompressed image of a reiserfs v3 filesystem was stored in a file on reiserfs, it can confuse reiserfsck badly... --Signature=_Tue__10_Oct_2006_23_18_28_+0400_j2v/Ih5t4zPXiJG/ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFFK/IQW82GfkQfsqIRAscdAJ0VoHkiOJ9XFMvO156571PDoQZc5ACePrxq VY7H8d0ehYlIFoYVthx9Qyo= =sa0c -----END PGP SIGNATURE----- --Signature=_Tue__10_Oct_2006_23_18_28_+0400_j2v/Ih5t4zPXiJG/--