Date: Mon, 28 Oct 1996 10:55:05 -0800 (PST) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: dufault@hda.hda.com (Peter Dufault) Cc: freebsd-scsi@freebsd.org Subject: Re: SCSI harddisk trouble: MEDIUM ERROR Message-ID: <199610281855.KAA19511@GndRsh.aac.dev.com> In-Reply-To: <199610281416.JAA01140@hda.hda.com> from Peter Dufault at "Oct 28, 96 09:16:39 am"
next in thread | previous in thread | raw e-mail | index | archive | help
> Well put - I should have read your message before responding. However: > > > ... Since we don't do read after write verify operations if > > a data hard error occurs in the block during the write that is undeteced > > during the read there is nothing that AWRE/ARRE can do about it... > > Do think this happens often? Almost certainly all of the reported ``why doesn't ARRE/AWRE'' handle this bad block are instances of this occuring, most likely a write operation that went haywire and undetected. > Are there situations where > "write and verify" support would be worth the probable huge > performance hit? It would be really nice to have a knob to turn it on and off via sysctl, Novell servers have had that knob since the 2.x days, Vax/VMS has had it for as long as I can remember, yes, I do think this would be worth it if we have a knob to twist. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation, Inc. Reliable computers for FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199610281855.KAA19511>