January 3, 20206 yr Hi, I could sure use some help. I have been upgrading my server with new drives over the past year and I am getting enormous number of sync errors. Most recently I installed a new 8 TB Parity drive and 2 new 8TB data drives. All pre-cleared 2 full cycles. Moved files from older 4 TB drives to 8 TB. Ran sync. Everything was okay. Copied some files (about 300GB) through thee cache drive. Moved the files then ran sync. Over 86,000 sync errors reported. I shut the server down afterwards. I have waited several days and just booted the server just over 1 hour ago. No files have been accessed no addition made to the server. After 256GB synced out of 8 TB there is over 600 sync errors and climbing steadily. 75% of my hours on all my drives is parity checks. Prior version of UnRaid 4.7 there wasn't a parity error for years. Since moving to UnRaid 6 series 6.4 & 6.5 I have had a constant barrage of sync errors. I thought it was a problem with the parity drive but that has been replaced and the problem persists. I also replace every disk drive cable. I have uploaded my hardware profile
January 3, 20206 yr Community Expert You should post the diags, but generally running memtest is the place to start.
January 4, 20206 yr Author It's at 3.9 TB with over 100k sync errors. I am canceling the parity check and am sending diagnostics. I will reboot and start memtest. tower-diagnostics-20200104-0409.zip
January 4, 20206 yr Community Expert If memtest doesn't find any errors next step would be to replace the SiI 3132 controllers, some models are known to corrupt data when both ports are accessed at the same time.
January 6, 20206 yr Author would this work as a replacement? IO Crest Internal 5 Port Non-Raid SATA III 6GB/s M.2 B+M Key Adapter Card for Desktop PC Support SSD and HDD. JMB585 Chipset
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