Bill Davidsen wrote: > John McMonagle wrote: > >> Have a raid1 backup server that seems to get corrupted. >> This is the 3rd time in about a year. >> Have 2 other backup servers that were cloned from this one that have >> no problems. >> >> Done a couple kernel upgrades recently. >> Now has 2.6.18-2 kernel. >> It's based on Debian sarge. >> >> It's a low end Intel server motherboard using ata_piix sata driver. >> Have another mother board just like doing raid1 with sata drives that >> has had no problems but it has a much lighter disk load. >> smartctl has never shown any problems. >> In /sys/block/md2 did >> echo check > syncaction >> No error messages but mismatch_cnt is 1152. >> rc0/errors and rc1/errors are both 0. >> >> I'm guessing a hardware problem. >> Any suggestions? > > > Since memory is the easiest to test, I'd try memtest86+ for at least > 12 hr. If this were PATA I'd suggest replugging the cables, but it's > lower probability with SATA. Still, probably worth trying. > Ran Memtest86+ for over 18 hours with no errors. Also have ecc ram. I can look at the cables next time I'm there. Doesn't sata do some sort of error checking over the cables? Anything else to try? Memtest86+ v1.65 | Pass 74% ############################ Pentium 4 (0.09) 2793 MHz | Test 61% ####################### L1 Cache: 16K 17135MB/s | Test #7 [Random number sequence] L2 Cache: 1024K 15179MB/s | Testing: 112K - 1024M 1024M Memory : 1024M 2059MB/s | Pattern: 189170f4 Chipset : Intel i875P (ECC : Detect / Correct) - PAT : Enabled Settings: RAM : 199 MHz (DDR398) / CAS : 3-3-3-8 / Dual Channel (128 bits) WallTime Cached RsvdMem MemMap Cache ECC Test Pass Errors ECC Errs --------- ------ ------- -------- ----- --- ---- ---- ------ -------- 18:52:27 1024M 120K e820-Std on off Std 56 0 ----------------------------------------------------------------------------- -- John McMonagle IT Manager Advocap Inc. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
