I/O errors during disk pre-clear

[JPilla415]

I recently pre-cleared a new disk, using a USB external enclosure. The pre-clear process went fine, no errors detected. Log attached.

 

However, in my system logs, there were several I/O errors, like so:

 

May 25 14:07:25 Tower kernel: I/O error, dev sdq, sector 216176640 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 25 17:46:47 Tower kernel: I/O error, dev sdq, sector 7100000256 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 25 19:29:54 Tower kernel: I/O error, dev sdq, sector 10371895296 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 25 21:46:52 Tower kernel: I/O error, dev sdq, sector 14667474944 op 0x0:(READ) flags 0x80700 phys_seg 235 prio class 3
May 25 23:15:57 Tower kernel: I/O error, dev sdq, sector 17367803904 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 25 23:25:31 Tower kernel: I/O error, dev sdq, sector 17650579456 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 25 23:28:55 Tower kernel: I/O error, dev sdq, sector 17751074816 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 26 02:26:36 Tower kernel: I/O error, dev sdq, sector 22836414464 op 0x0:(READ) flags 0x80700 phys_seg 143 prio class 3
May 26 04:42:18 Tower kernel: I/O error, dev sdq, sector 26456676352 op 0x0:(READ) flags 0x80700 phys_seg 250 prio class 3
May 26 05:30:42 Tower kernel: I/O error, dev sdq, sector 27685124096 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 26 05:47:47 Tower kernel: I/O error, dev sdq, sector 28108584960 op 0x0:(READ) flags 0x80700 phys_seg 255 prio class 3
May 26 06:38:47 Tower kernel: I/O error, dev sdq, sector 29346476032 op 0x0:(READ) flags 0x80700 phys_seg 255 prio class 3
May 26 06:55:44 Tower kernel: I/O error, dev sdq, sector 29748836352 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 26 09:56:49 Tower kernel: I/O error, dev sdq, sector 33768067072 op 0x0:(READ) flags 0x80700 phys_seg 177 prio class 3
May 26 12:35:24 Tower kernel: I/O error, dev sdq, sector 36843491328 op 0x0:(READ) flags 0x80700 phys_seg 248 prio class 3
May 27 16:50:40 Tower kernel: I/O error, dev sdq, sector 829847552 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 27 17:23:38 Tower kernel: I/O error, dev sdq, sector 1869090816 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 27 18:14:28 Tower kernel: I/O error, dev sdq, sector 3488593920 op 0x0:(READ) flags 0x80700 phys_seg 255 prio class 3
May 27 18:17:12 Tower kernel: I/O error, dev sdq, sector 3575107584 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 27 18:30:54 Tower kernel: I/O error, dev sdq, sector 4006899712 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 27 22:18:08 Tower kernel: I/O error, dev sdq, sector 11223660544 op 0x0:(READ) flags 0x80700 phys_seg 254 prio class 3
May 27 22:38:32 Tower kernel: I/O error, dev sdq, sector 11866187776 op 0x0:(READ) flags 0x80700 phys_seg 218 prio class 3
May 27 22:47:46 Tower kernel: I/O error, dev sdq, sector 12155328512 op 0x0:(READ) flags 0x80700 phys_seg 255 prio class 3
May 28 02:27:18 Tower kernel: I/O error, dev sdq, sector 18810028032 op 0x0:(READ) flags 0x80700 phys_seg 99 prio class 3
May 28 02:53:56 Tower kernel: I/O error, dev sdq, sector 19580878848 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 28 03:22:13 Tower kernel: I/O error, dev sdq, sector 20390768640 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 28 04:57:37 Tower kernel: I/O error, dev sdq, sector 23055421440 op 0x0:(READ) flags 0x80700 phys_seg 36 prio class 3
May 28 06:07:08 Tower kernel: I/O error, dev sdq, sector 24922828800 op 0x0:(READ) flags 0x80700 phys_seg 211 prio class 3
May 28 07:18:30 Tower kernel: I/O error, dev sdq, sector 26779922432 op 0x0:(READ) flags 0x80700 phys_seg 167 prio class 3
May 28 09:10:28 Tower kernel: I/O error, dev sdq, sector 29533231104 op 0x0:(READ) flags 0x80700 phys_seg 248 prio class 3
May 28 10:02:02 Tower kernel: I/O error, dev sdq, sector 30733670400 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3
May 28 13:04:12 Tower kernel: I/O error, dev sdq, sector 34633654272 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 3

 

I'm under the assumption is this due to a flaky USB enclosure disconnecting and reconnecting, but I wanted to ask the experts to be sure. Diagnostics attached.

 

Appreciate any thoughts and feedback!

preclear_disk_8LJBK2XN_8429.txt tower-diagnostics-20240529-0718-ANON.zip

[JorgeB]

Doesn't look like a disk problem.

[JPilla415]

Thanks so much for taking a look. I appreciate it.