May 16May 16 Hi all,I'm getting read error in "Disk 1" and "Disk 2" got disabled.While copying some data from the array, the server suddenly shutdown (2 times)I would appreciate your suggestion wither I should rebuild the same disabled disk again (Disk 2), or replace it with a new drive. The replacement will be a 18TB as I don't have a spare 8TB.The first diagnostics is directly after booting up the server after the unclean shutdown (20260514), and the second one is recent (20260516).Thank you in advance. tower-diagnostics-20260514-1759.zip tower-diagnostics-20260516-1056.zip
May 16May 16 Community Expert 2 hours ago, HAMANY said:While copying some data from the array, the server suddenly shutdown (2 times)This suggests a hardware issue; recommend addressing this first.Read errors on disk1 are logged as a disk problem; run an extended SMART test.
May 16May 16 Author 4 hours ago, JorgeB said:This suggests a hardware issue; recommend addressing this first.Read errors on disk1 are logged as a disk problem; run an extended SMART test.Thanks JorgeB.The extended SMART test had read failure. It didn't pass the 30% (Attached) tower-smart-20260516-1735.zip
May 17May 17 Community Expert Solution That disk needs to get replaced as well. Since you have dual parity, you can replace both at the same time, or if you don't have a spare, rebuild disk2 first, then replace disk1.
May 23May 23 Author On 5/17/2026 at 11:10 AM, JorgeB said:That disk needs to get replaced as well. Since you have dual parity, you can replace both at the same time, or if you don't have a spare, rebuild disk2 first, then replace disk1.Does Disk 2 has any signs of failing that required replacement? Or rebuilding the same disk is enough?Thanks. Edited May 23May 23 by HAMANY
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