Date: Sat, 10 Feb 1996 14:08:25 -0700 From: Warner Losh <imp@village.org> To: Terry Lambert <terry@lambert.org> Cc: current@FreeBSD.ORG Subject: Re: How Message-ID: <199602102108.OAA01488@rover.village.org> In-Reply-To: Your message of Sat, 10 Feb 1996 13:02:21 MST
next in thread | raw e-mail | index | archive | help
: You mean a hardware failure, right? A single failed metadata write : as a result of a crash before the write completes is *always* : recoverable with fsck. Yes. However, more than a single failed write was happening... : A hardware failure will either transparently forward the failed : sector, or if bad sector forwarding is being handled in software, : the BAD144 layer will cause the soft bad block map to be updated : and, again, the failed write will be remapped. The drive was lying to FreeBSD somehow. The sectors appeared to write correctly, but they were in fact unchanged or "random" for reasons unknown. As far as FreeBSD was concerned, it was dealing with a disk that was perfect. The disk drive, on the other hand, had other notions... It is entirely possible that FreeBSD 2.0R doesn't handle this sort of thing correctly. I've not delved enough to know for sure. I just know that I had a disk go bad and the corruption in the file system was rather large... Warner
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199602102108.OAA01488>