Date: Fri, 07 Nov 2003 14:06:54 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Kris Kennaway <kris@obsecurity.org> Cc: sos@FreeBSD.org Subject: RE: Too many uncorrectable read errors with atang Message-ID: <XFMail.20031107140654.jhb@FreeBSD.org> In-Reply-To: <20031107181007.GA19911@rot13.obsecurity.org>
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On 07-Nov-2003 Kris Kennaway wrote: > So far this has happened (well, the panic above was new) on 5 separate > machines that were all working on older -current. Now, these are all > IBM DeathStar drives, but previously I was only experiencing ata > errors every month or two, and they were correctable for another month > or two by /dev/zero'ing the drive. > > To suddenly start receiving errors on 5 out of 7 drives in the past > few weeks is a significant anomaly. Perhaps one of the following is > happening: > > 1) All my drives have performed mass suicide at once > > 2) ATAng is detecting errors that the ATAog did not > > 3) ATAng is not trying as hard as ATAog to recover from the errors > from the crappy drives > > 4) ATAng has a bug on this hardware. 5) Interference from abnormally high solar activity. It is known to cause an increase in NMI's from ECC errors, so it could be a possible explanation here even if it's a bit far-fetched. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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