October 30, 201015 yr Hi All, We had a bad power failure the other day after which my unraid box (4.5.6) wouldn't even make it into the bIOS. After swapping stuff out I determined that it had nuked either the MB or CPU on my unraid server so I took the opportunity to upgrade. Went with the following: Motherboard Asus M4A87TD EVO with 2 PCIe 2.0 x16 Slots and 6 x SATA 6Gb/s Processor AMD Athlon™ II X2 250 3.0GHz RAM Kingston ValueRAM 4GB PC3-10600 DDR3 Dual Channel Kit The existing components include: Supermicro AOC-SASLP-MV8 Corsair TX 650W Power Supply Old PCI Trident graphics card for video Currently have 8 drives: Parity Drive - WDC_WD20EADS Data Drives - 2 x WDC_WD20EADS, 3 x WDC_WD10EACS, 1 x WDC_WD10EADS and a single 1TB SAMSUNG_HD103UJ 6 drives (including parity) are on the onboard 6 x SATA 6Gb/s ports 2 drives are on the MV8 SATA card After putting in the new MoBo, RAM and CPU and configuring the BIOS to boot from USB key, the system booted form the flashdisk first time into unraid. I logged into the web UI and configured the drive devices list and all the drives appeared correctly. Final step was to kickoff a parity check. The issue is that the parity check is taking forever. It is estimating 36 hours to complete with speeds in the 12,000 -14,000 KB/sec range. After 33% it's found 3 sync errors so far. Something bad happened around 19:06:18 in the syslog while I was selecting the drives on the devices page but I'm not sure if its a big deal or not. When I hit the start array button it took a really long time to finish mounting the drives, whereas previously it had started very quickly. I was able to play a 720P movie off the array so at first I thought everything was great until I noticed how slow the parity check was going. Any ideas why the parity check would be running so slowly? My syslog is here. Thanks!
October 30, 201015 yr Author Is it OK to stop the parity check while I try to figure out the problem or is that a bad idea?
October 31, 201015 yr I've stopped parity checks before. It's only an issue if there's an error it hasn't found yet and you lose a drive.
January 7, 201115 yr Author Yeah, sure did. BIOS wasn't using AHCI. Set drives to AHCI and now parity check speeds are back to normal.
January 7, 201115 yr Just found the M4A785TD, which is almost identically, but has onboard VGA/HDMI. Suppose this one to be my board for my little 15 drive monster ... Thanks, Herbert
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