On Sun, Jul 28, 2019 at 03:59:43PM -0000, Michael van Elst wrote: > tlaro...@polynum.com writes: > > >I can detach with: > > ># drvctl -d wd? > > This will also try to detach the wedges, which fails if a wedge is > still mounted (or opened somehow). > > >But I tried the reverse operation: trying to rescan the bus. > > >On ahcisata?, this is EOPNOTSUPP. > >On atabus?, this is EINVAL. > > atabus has multiple attachment points. You need to rescan with > the attribute ata_hl, i.e: > > drvctl -r -a ata_hl atabus1
Thank you (someone has also kindly pointed me to the man page where this is explicitely stated in the EXAMPLES paragraph---I totally missed this!) I will now be able to compare the attachment of a same disk with two differing connections: SATA (eSATA) and USB (BOT? UAS? UASP?) for 3 areas: - commands available (for example SMART seems to be only available if SATA connected); - speed; - reliability. Best, -- Thierry Laronde <tlaronde +AT+ polynum +dot+ com> http://www.kergis.com/ http://www.sbfa.fr/ Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C