Unraid v 6.7.0

diag attached and drive ogs below.

 

This drive is not very old, only 6.3 weeks of runtime.

Nothing logged (telegraf) into Grafana from that drive seems to indicate it going wrong.

 

Could this be a simple HDD failure and nothing to worry about?

 

 

 

May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] 4096-byte physical blocks
May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] Write Protect is off
May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] Mode Sense: 9b 00 10 08
May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] Write cache: enabled, read cache: enabled, supports DPO and FUA
May 18 12:15:22 Server kernel: sdi: sdi1
May 18 12:15:22 Server kernel: sd 7:0:4:0: [sdi] Attached SCSI disk
May 18 12:15:47 Server emhttpd: ST4000DM004-2CV104_ZFN1RHKA (sdi) 512 7814037168
May 18 12:15:47 Server kernel: mdcmd (2): import 1 sdi 64 3907018532 0 ST4000DM004-2CV104_ZFN1RHKA
May 18 12:15:47 Server kernel: md: import disk1: (sdi) ST4000DM004-2CV104_ZFN1RHKA size: 3907018532
May 18 12:15:50 Server emhttpd: shcmd (27): /usr/local/sbin/set_ncq sdi 1
May 18 12:15:50 Server root: set_ncq: setting sdi queue_depth to 1
May 18 12:15:50 Server emhttpd: shcmd (28): echo 128 > /sys/block/sdi/queue/nr_requests
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] Synchronizing SCSI cache
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 6a 24 de 70 00 00 01 40 00 00
May 21 03:14:25 Server kernel: print_req_error: I/O error, dev sdi, sector 1780801136
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] tag#1 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] tag#1 CDB: opcode=0x88 88 00 00 00 00 00 6a 24 df b0 00 00 00 10 00 00
May 21 03:14:25 Server kernel: print_req_error: I/O error, dev sdi, sector 1780801456
May 21 03:14:25 Server kernel: sd 7:0:4:0: [sdi] Synchronize Cache(10) failed: Result: hostbyte=0x01 driverbyte=0x00

 

server-diagnostics-20190527-0933.zip

Disk looks fine, looks more like connection issue, suggest rebuilding after replacing/swapping cables/slot to rule them out if the same disk fails again.