Hello Bengt, sil3114 is known to cause data corruption with some disks. So far I only know about Seagate, but maybe there issues with newer Samsungs as well? http://lkml.indiana.edu/hypermail/linux/kernel/0710.2/2035.html Unfortuntely this issue has been simply ignored by the SATA developers :( So if you want to be on the safe side, go an get another controller. I hope I won't frighten you too much, but it also might be possible one of your disks has a problem, I have also seen a few broken disks, which don't return what you write to it... Cheers, Bernd On Fri, Jan 02, 2009 at 07:42:30AM -0500, Justin Piszcz wrote: > > > On Fri, 2 Jan 2009, Bengt Samuelsson wrote: > >> >> Hi, >> >> I need some support for this soft-raid system. >> >> I am running it as RAID5 with 4 samsung spinpoint 500G SATA300 tot 1.3T byte >> >> And it runs in http://sm7jqb.dnsalias.com >> I use mdadm sytem in a Debian Linux >> CPU 1.2Mhz 1G memory ( my older 433Mhz / 512M dont work at all ) >> >> I have 'some courrupt' data. And I don't understand whay and how to fix it. >> Mybee slow it down more, but how slow it down? >> >> Any with experents from this cheep way of RAID systems. >> >> Ask for more information and I can get it, logs, setup files and what >> you want >> to know. >> >> -- >> Bengt Samuelsson >> Nydalavägen 30 A >> 352 48 Växjö >> >> +46(0)703686441 >> >> http://sm7jqb.se >> >> >> -- >> To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx with a >> subject of "unsubscribe". Trouble? Contact listmaster@xxxxxxxxxxxxxxxx >> > > If this is an mdadm-related raid (not dmraid) please show all relevant md > info, mdadm -D /dev/md0, I have cc'd linux-raid on this thread for you. > > You'll want to read md.txt in /usr/src/linux/Documentation and read on > the check and repair commands. > > In addition, have you run memtest86 on your system first to make sure its > not memory related? > > Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html