> On a Shuttle DS47, with a recent Samsung SSD 840, significant I/O churn > (cvs checkout on top of existing repository, while removing another, and > some more) appears to have caused and/or triggered intermittent I/O errors. > > In dmesg, the error shows up as this: > ahci0: attempting to idle device > ahci0: couldn't recover NCQ error, failing all outstanding commands. [...] > sd0 at scsibus0 targ 0 lun 0: <ATA, Samsung SSD 840, DXM0> SCSI3 > 0/direct fixed naa.5002538550409483 > sd0: 122104MB, 512 bytes/sector, 250069680 sectors, thin
The exact model of this disk is MZ-7PD128 (SSD 840 Pro). Off-list, I was asked to check, if the disk runs the latest firmware. I assume it does, because the latest firmware from Samsung is dated June 2013, and I purchased the disk this January. But I don't know, how to confirm this. The firmware version is cut off in the dmesg above (the interesting parts begin right after the "DXM0"). Apart from the disk's serial number, bioctl -q sd0 doesn't show any more either. Is there a way to get more of this string? Moritz
