June 13, 201313 yr Hello! This is my first attempt at building an unraid server, so apologies for the dumb questions. I have followed the wiki and seemed to have everything up and running (parity sync done and drives formatted). After rebooting the server there was a red blob next to one of the hard drives. I used initconfig to reset the array and rebooted again - this time I noticed "Buffer I/O error on device sde" flashing up as unraid booted. I looked in the syslog and there are a number of other errors all related to this drive. I have tried switching mobo SATA ports, SATA cable and power cable but that did not resolve the problem... I performed a 3 cycle preclear on the disk when I added it and they came back fine. I have tried preclearing again and it is going incredibly slow (2.1MB/s on the pre-read). I have attached the syslog and the original preclear report. I'd really appreciate some expert advice on this! The server specs: Mobo: Asus P6T-SE CPU: i7 920 RAM: 3GB DDR3 1333 PSU: Corsair CX430 HDD1: 3TB Seagate barracuda ST3000DM001 HDD2: 2TB Samsung Spinpoint F4 HD204UI HDD3: 1TB Samsung Spinpoint F3 HD103SJ (the problem disk...) HDD4: 500GB Seagate barracuda ST3500418AS Thanks, Rob preclear.txt syslog.txt
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