March 12, 20251 yr Hiya! Looks like this could be a lovely disk failure, but I wanted to ask here to check. The drive appears undetected in Unraid, restarts of the server and array are inconclusive. The server is a HP ProLiant. I've attached the diagnostics below if they are of use. Thank you all! valkyrie-diagnostics-20250312-2031.zip
March 13, 20251 yr Author 3 hours ago, JorgeB said: There's an unassigned disk, was that old disk1? Hiya, it was the same type as disk in drive 2, sadly I can’t see any unassigned disks in the dashboard. Under main, it doesn’t show any other disks as assignable to drive 1.
March 13, 20251 yr Community Expert Power cycle the server, also take the opportunity to check/replace cables for disk1 and post new diags after array start.
March 13, 20251 yr Author 55 minutes ago, JorgeB said: Power cycle the server, also take the opportunity to check/replace cables for disk1 and post new diags after array start. Thanks for your help so far JorgeB! I can confirm that the cabling is correct, the caddy lights are on and active. I have reseated the caddy and power-cycled the server. Diagnostics are attached below as requested. valkyrie-diagnostics-20250313-1305.zip
March 13, 20251 yr Community Expert That unassigned disk is showing some issues: === START OF READ SMART DATA SECTION === SMART Health Status: Data channel impending failure data error rate too high [asc=5d, ascq=32] I would recommend replacing it.
March 13, 20251 yr Author 1 hour ago, JorgeB said: That unassigned disk is showing some issues: === START OF READ SMART DATA SECTION === SMART Health Status: Data channel impending failure data error rate too high [asc=5d, ascq=32] I would recommend replacing it. Ah balls, that's not ideal. What would be the best way to rebuild parity when removing this drive?
March 13, 20251 yr Community Expert You typically rebuild that disk, not parity, or do you mean you want to remove that disk and shrink the array?
March 13, 20251 yr Author 1 hour ago, JorgeB said: You typically rebuild that disk, not parity, or do you mean you want to remove that disk and shrink the array? Preferably shrink the array. Typically I just put new drives into the array last week!
March 14, 20251 yr Community Expert Solution You will need to copy any data from the emulated disk to the other devices, then you can rebuild parity without it: https://docs.unraid.net/legacy/FAQ/shrink-array/
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