April 10, 20242 yr Hello, Recently i repurposed my main server into a backup server with a plus license. The array has 7 disks with no parity. Cache pool is 2x1Tb ssd btrfs pool. I have a strange issue (see the picture). 2 disks are visible both as array disks and unassigned devices. I can't stop the array. 1 disk has read errors. For the other one with issue i don't know. Perhaps a connection. Before repurposing the server disks had no problems. 2 disks are in a sas das (disks 6&7). The other ones are on internal sata ports. z620-diagnostics-20240410-1357.zip
April 10, 20242 yr Community Expert Solution Looks like an issue with the Intel SCU controller, unless all the disks using it share a power splitter or something, if you have another controller to connect those devices I would try it.
April 10, 20242 yr Author thanks. It looks like it's the right diag. Changed the port to the ahci controller for theses 2 disks (they were the only ones on the scu controller). No issue at booting and currently running diskspeed benchmark. Never had a glitch in years with the scu controller. Luckily i don't need these 4 ports. What drove you to scu in diags ? I made the same deduction but only when i saw that the 2 drives were the only one attached to the scu.
April 10, 20242 yr Community Expert 1 hour ago, caplam said: What drove you to scu in diags ? I've seen issues with those controllers before, especially on older boards, and all affected disks were using it.
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