Re: Data corruption on software raid.

2007-03-18 Thread Neil Brown
On Sunday March 18, [EMAIL PROTECTED] wrote: > Hello! Long story. Get some coke. And a painful story!. See also http://bugzilla.kernel.org/show_bug.cgi?id=8180 It also involves a Silicon Image PCI/SATA controller, though a different model. But then I have an SI PCI SATA controller that has nev

Re: Data corruption on software raid.

2007-03-18 Thread Neil Brown
On Sunday March 18, [EMAIL PROTECTED] wrote: > > This may be due to a characteristic of RAID1, which I believe Neil > described when discussing "check" failures in using RAID1 for swap. In > some cases, the data is being written from a user buffer, which is > changing. and the RAID software doe

Re: Data corruption on software raid.

2007-03-18 Thread Sander Smeenk
Quoting Bill Davidsen ([EMAIL PROTECTED]): > Here are several pertinent sections from Neils posts, topic > "mismatch_cnt questions" [..] > Does any of that explain why I raise the possibility of the data > changing as the file is written? Yeah, that helps. But as i understand, these 'difference

Re: Data corruption on software raid.

2007-03-18 Thread Sander Smeenk
Quoting Bill Davidsen ([EMAIL PROTECTED]): > >>I'm having an odd problem with using software raid on two Western > >>Digital disks type WD2500JD-00F (250gb) connected to a Silicon Image > >>Sil3112 PCI SATA conroller running with Linux 2.6.20, mdadm 2.5.6 > Your comments below are thoughts on the

Re: Data corruption on software raid.

2007-03-18 Thread Bill Davidsen
(relativelySander Smeenk wrote: Hello! Long story. Get some coke. I'm having an odd problem with using software raid on two Western Digital disks type WD2500JD-00F (250gb) connected to a Silicon Image Sil3112 PCI SATA conroller running with Linux 2.6.20, mdadm 2.5.6 When these disks are in a r

Re: Data corruption on software raid.

2007-03-18 Thread Bill Davidsen
Justin Piszcz wrote: On Sun, 18 Mar 2007, Sander Smeenk wrote: Hello! Long story. Get some coke. I'm having an odd problem with using software raid on two Western Digital disks type WD2500JD-00F (250gb) connected to a Silicon Image Sil3112 PCI SATA conroller running with Linux 2.6.20, mdadm

Re: Data corruption on software raid.

2007-03-18 Thread Wolfgang Denk
In message <[EMAIL PROTECTED]> you wrote: > > But what amazes me is that no media errors can be detected by doing a > write/read check on every sector of the disk with mke2fs, and no data > corruption occurs when moving data to the set locally! > > Can anyone shed some light on what i can try nex

Re: Data corruption on software raid.

2007-03-18 Thread Justin Piszcz
On Sun, 18 Mar 2007, Sander Smeenk wrote: Hello! Long story. Get some coke. I'm having an odd problem with using software raid on two Western Digital disks type WD2500JD-00F (250gb) connected to a Silicon Image Sil3112 PCI SATA conroller running with Linux 2.6.20, mdadm 2.5.6 [[ .. snip ..