At the bottom of the message I pasted kernel messages relating to storage hangs on my laptop. So far I have only seen one SSD properly fail (it would just deny all writes) so don't have experience of failure cases. Might the below be due to motherboard or storage problems? https://support.lenovo.com/au/en/solutions/pd027202#stor The above page has specs for my laptop, Thinkpad X1 Carbon type 3460-2B9. INTEL SSDSCMMW18 LE9i /dev/sda 180GB Above is the output of "lsscsi -s". Googling the Intel part number gives me nothing useful. https://www.windowscentral.com/how-upgrade-ssd-lenovo-thinkpad-x1-carbon The above states that M.2 SATA is the type of device. Is it likely to take an NVMe device? [683642.347249] ata1.00: status: { DRDY } [683642.347250] ata1.00: failed command: READ FPDMA QUEUED [683642.347253] ata1.00: cmd 60/08:d8:88:8a:5a/00:00:03:00:00/40 tag 27 ncq dma 4096 in res 40/00:01:00:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout) [683642.347254] ata1.00: status: { DRDY } [683642.347255] ata1.00: failed command: READ FPDMA QUEUED [683642.347257] ata1.00: cmd 60/08:e0:d0:8a:5a/00:00:03:00:00/40 tag 28 ncq dma 4096 in res 40/00:01:00:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout) [683642.347259] ata1.00: status: { DRDY } [683642.347260] ata1.00: failed command: READ FPDMA QUEUED [683642.347262] ata1.00: cmd 60/08:e8:d0:8b:5a/00:00:03:00:00/40 tag 29 ncq dma 4096 in res 40/00:01:00:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout) [683642.347264] ata1.00: status: { DRDY } [683642.347265] ata1.00: failed command: READ FPDMA QUEUED [683642.347267] ata1.00: cmd 60/38:f0:48:8c:5a/00:00:03:00:00/40 tag 30 ncq dma 28672 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [683642.347268] ata1.00: status: { DRDY } [683642.347269] ata1.00: failed command: READ FPDMA QUEUED [683642.347272] ata1.00: cmd 60/08:f8:38:92:5a/00:00:03:00:00/40 tag 31 ncq dma 4096 in res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [683642.347273] ata1.00: status: { DRDY } [683642.347276] ata1: hard resetting link [683642.661304] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [683642.672851] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded [683642.672853] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out [683642.672855] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out [683642.692818] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded [683642.692820] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out [683642.692822] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out [683642.702477] ata1.00: configured for UDMA/133 [683642.702838] ata1.00: device reported invalid CHS sector 0 [683642.702848] sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [683642.702850] sd 0:0:0:0: [sda] tag#0 Sense Key : Illegal Request [current] [683642.702852] sd 0:0:0:0: [sda] tag#0 Add. Sense: Unaligned write command [683642.702854] sd 0:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 03 5a 8c 98 00 00 10 00 [683642.702855] print_req_error: I/O error, dev sda, sector 56265880 [683642.702874] sd 0:0:0:0: [sda] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [683642.702875] sd 0:0:0:0: [sda] tag#1 Sense Key : Illegal Request [current] [683642.702876] sd 0:0:0:0: [sda] tag#1 Add. Sense: Unaligned write command [683642.702877] sd 0:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 03 5a 8c b8 00 00 30 00 [683642.702878] print_req_error: I/O error, dev sda, sector 56265912 [683642.702883] sd 0:0:0:0: [sda] tag#2 FAILED Result: hostbyte=DID_O -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/