On Tue, 15 Apr 2008 03:52:34 pm Brian Buhrow wrote: > Hello. Sorry I wasn't clear about scsi disks and hot pluggable > enclosures. However, perhaps I mis-stated the question. In relased > versions of NetBSD, at least Versions 2, 3 and 4, given a properly designed > scsi enclosure which permits hot pluggability, the scsitl utility can be > used to good effect to rescan buses after disk changes, and raidframe can > be used to rebuild arrays on swapped drives after drive changes on those > properly designed enclosures, all without bringing a running system down. > The same cannot be said for SATA disks, which can also be placed in > enclosures which permit hot plugging. The atactl /dev/atabus0 reset > command does not have the desired effect. > I think this should work, and I wonder how hard it is to make work. Looking at other posts on the net, it appears that FreeBSD can facilitate this with the 'atacontrol' (detach/attach) program but NetBSDs 'atactl' seems to lack the required functionality. I'd say a feature comparison between the two may be a first step. There may completely different heritage though (atactl claims to be based on scsictl) so maybe a port is more appropriate. Sarton