September 19, 20187 yr Recently bought 2x 8tb Ironwolfs and a RES2SV240 to expand my array (had 18TB before, LSI 9220-8i in IT-mode). Started preclears on both drives right after installation and everything seemed good. 30 hours later and both drives were done. Problem is they both showed UDMA CRC errors, 3 and 6 each. Researching tells me its normally a bad cable. I refitted everything, changed cables/ports, without success. Started extended SMART tests on 3 random drives from before and they passed without issues. Then I connected the new drives to the LSI9220 directly and did a new preclear (only zeroing). No errors.. Is the RES2SV240 faulty? Why didnt the other drives get UDMA CRC errors when connected through the RES2SV240? Is it because I have not written that much data to the old array after I installed the RES2SV240?
September 19, 20187 yr Community Expert 9 times out of 10 the problem are the cables, but it can also be the expander or HBA.
September 19, 20187 yr Author Pretty sure I tried the same cable in both configurations (res2sv240 + LSI9220 and directly to the LSI9220). Only got errors when the res2sv240 was involved. Has to be that one then?
September 19, 20187 yr Community Expert 1 hour ago, antindragonslayer said: Has to be that one then? Most likely
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