Thanks for the update that i'm not alone Michael.. Have you read my updates tonight.. I think i'm on the case of fixing it (secondary drive on a controller on its own appears to have been the problem.. touch wood) ... I will give it some more hard testing and will consider getting a 3ware card if it doesn't stay fixed... i have quite a good PSU i think and am only using 3 drives, and an old PC.. the PSU shouldn't be too stressed... Good luck.. Jim > -----Original Message----- > From: linux-raid-owner@vger.kernel.org > [mailto:linux-raid-owner@vger.kernel.org]On Behalf Of Michael > Sent: 18 November 2003 00:21 > To: linux-raid@vger.kernel.org > Subject: RE: Software Raid 1 data corruptions.. > > > > > -----Original Message----- > > > From: linux-raid-owner@vger.kernel.org > > > [mailto:linux-raid-owner@vger.kernel.org]On Behalf Of Neil Brown > > > Sent: 17 November 2003 03:19 > > > To: James R Bamford > > > Cc: david.anderson@calixo.net; linux-raid@vger.kernel.org > > > Subject: RE: Software Raid 1 data corruptions.. > > > > > > > > > On Saturday November 15, jim@jimtreats.com wrote: > > > > > <snip> > Just so you don't feel bad, I have the following situation that is > very similar -- used your test procedure to find the problem. > > Three systems with supermicro mbrds and DPT RA4050 controllers (raid > not used). An assortment of Segate and IBM 18 gig drives. Setup is > raid 1 with small boot & swap partitions + one large data partition. > > Symptoms -- raid 1 would build, but data corruption would occur > either during initial data transfer or upon doing the first disk > thrashing i.e. build a kernel or something like that. > > broke the raid down and tested by simply transfering a 30 meg file > from an installed IDE drive to the scsi drive, dismounting, > remounting and doing md5sum of the file. Consistently, the Segate > drives come up with differing cksums. The IBM drives all seem to work > as does the IDE drive. I have 9 Segate drives and they work in other > machines so I have to assume it is some combination of the power > supply, mbrd, controller, etc... that is causing the problem though I > have 3 of these systems and it seems pretty consistent on all of > them. Big mystery, you are not alone -- it may be your hardware. > > Michael > Michael@Insulin-Pumpers.org > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
