I found these error messages on cd / var / log / messages and would like to know what they are.
2020-09-14T00:06:31.924251-03:00 BRGOSV022 kernel: [43093.922745] print_req_error: critical target error, dev sdc, sector 271917056
2020-09-14T00:06:31.924252-03:00 BRGOSV022 kernel: [43093.922752] sd 0:0:2:0: [sdc] tag#14 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
2020-09-14T00:06:31.924254-03:00 BRGOSV022 kernel: [43093.922754] sd 0:0:2:0: [sdc] tag#14 Sense Key : Illegal Request [current]
2020-09-14T00:06:31.924255-03:00 BRGOSV022 kernel: [43093.922757] sd 0:0:2:0: [sdc] tag#14 Add. Sense: Invalid field in cdb
2020-09-14T00:06:31.924257-03:00 BRGOSV022 kernel: [43093.922760] sd 0:0:2:0: [sdc] tag#14 CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
2020-09-14T00:06:31.924258-03:00 BRGOSV022 kernel: [43093.922762] print_req_error: critical target error, dev sdc, sector 271982592
2020-09-14T00:06:31.924259-03:00 BRGOSV022 kernel: [43093.922768] sd 0:0:2:0: [sdc] tag#15 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
2020-09-14T00:06:31.924261-03:00 BRGOSV022 kernel: [43093.922770] sd 0:0:2:0: [sdc] tag#15 Sense Key : Illegal Request [current]
2020-09-14T00:06:31.924262-03:00 BRGOSV022 kernel: [43093.922773] sd 0:0:2:0: [sdc] tag#15 Add. Sense: Invalid field in cdb
2020-09-14T00:06:31.924263-03:00 BRGOSV022 kernel: [43093.922776] sd 0:0:2:0: [sdc] tag#15 CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
2020-09-14T00:06:31.924265-03:00 BRGOSV022 kernel: [43093.922778] print_req_error: critical target error, dev sdc, sector 272048128
2020-09-14T00:06:31.924267-03:00 BRGOSV022 kernel: [43093.922783] sd 0:0:2:0: [sdc] tag#16 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
2020-09-14T00:06:31.924268-03:00 BRGOSV022 kernel: [43093.922786] sd 0:0:2:0: [sdc] tag#16 Sense Key : Illegal Request [current]
2020-09-14T00:06:31.924269-03:00 BRGOSV022 kernel: [43093.922789] sd 0:0:2:0: [sdc] tag#16 Add. Sense: Invalid field in cdb
2020-09-14T00:06:31.924271-03:00 BRGOSV022 kernel: [43093.922792] sd 0:0:2:0: [sdc] tag#16 CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
2020-09-14T00:06:31.924272-03:00 BRGOSV022 kernel: [43093.922793] print_req_error: critical target error, dev sdc, sector 272113664
2020-09-14T00:06:31.924273-03:00 BRGOSV022 kernel: [43093.922800] sd 0:0:2:0: [sdc] tag#2 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
2020-09-14T00:06:31.924275-03:00 BRGOSV022 kernel: [43093.922802] sd 0:0:2:0: [sdc] tag#2 Sense Key : Illegal Request [current]
2020-09-14T00:06:31.924277-03:00 BRGOSV022 kernel: [43093.922805] sd 0:0:2:0: [sdc] tag#2 Add. Sense: Invalid field in cdb
2020-09-14T00:06:31.924278-03:00 BRGOSV022 kernel: [43093.922808] sd 0:0:2:0: [sdc] tag#2 CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
2020-09-14T00:06:31.924279-03:00 BRGOSV022 kernel: [43093.922810] print_req_error: critical target error, dev sdc, sector 272179200
Hi and welcome to the Forum 
Is this a RAID setup? What release of SUSE cat /etc/os-release? That looks like /dev/sdc is failing, and/or the cable needs replacing. Can you check the output from smartctl /dev/sdc as well for errors.
Thank You.