On Sun, 8 Jul 2012 22:46:59 +0200 LEVAI Daniel <l...@ecentrum.hu> wrote: > My errors were triggered when I was copying from disk1 to disk2, both > connected to the SIL card. (in this case this was a 2 port card), not > when copying something in parallel to both disks from a separate > location. I think this makes the difference.
Good point. So I did some more testing today by copying from one disk to the other (dd bs=4k), both on the same controller. Btw, I forgot to mention that the SiI is a PCI card and the JMB is a PCI-E. You probably don't have PCI-E in your Pentium 4 ;) 1) Both controllers (SiI3512A, JMB363) showed the same speed, around 17MB/sec (and 8000 interrupts/sec). 2) After more than 4h and 350GB, the JMB still showed no error. 3) But: the SiI3512A reported errors after ca. 3h: Jul 11 16:32:32 pc200 /bsd: wd0c: aborted command writing fsbn 565811920 of 565811920-565811927 (wd0 bn 565811920; cn 35220 tn 41 sn 37), retrying Jul 11 16:32:32 pc200 /bsd: wd0: soft error (corrected) Jul 11 16:50:56 pc200 /bsd: wd0c: aborted command writing fsbn 601990688 of 601990688-601990695 (wd0 bn 601990688; cn 37472 tn 47 sn 47), retrying Jul 11 16:50:56 pc200 /bsd: wd0: soft error (corrected) Jul 11 17:15:59 pc200 /bsd: wd0c: aborted command writing fsbn 651398952 of 651398952-651398959 (wd0 bn 651398952; cn 40547 tn 180 sn 57), retrying Jul 11 17:16:00 pc200 /bsd: wd0: soft error (corrected) Jul 11 17:22:01 pc200 /bsd: wd0c: aborted command writing fsbn 663235184 of 663235184-663235191 (wd0 bn 663235184; cn 41284 tn 122 sn 38), retrying Jul 11 17:22:01 pc200 /bsd: wd0: soft error (corrected) kind regards, Robert