On Fri, 2006-01-06 at 14:37, Bryan J. Smith wrote: > > That doesn't look like an md device error, it looks like > > an IDE driver kernel error that never made it up to the > > raid logic. > > Because you need some sort of hotplug or other logic to trap > the error, instead of letting the storage device being > reported as "removed" from the system. > > When you use 3Ware card as a "dumb" JBOD device, you lose > _all_ of its features for hot-swap. That's because it no > longer hides the "raw" disk and its state from the system. OK, but "raw" scsi disks don't have this problem. > So when you use it in JBOD mode, and the volume = disk, you > need to use _another_ facility to hide the "raw" disk status > from the system. That's where hotplug comes in, and you need > to set it up proper. Why is this different than a scsi drive? > This has been a repeat theme. People don't understand that > all of the 3Ware "advantages" like hot-swap and hiding the > "raw" disc status _only_ work when you use its hardware > arrays. Of course we don't understand it. Is this documented somewhere? -- Les Mikesell lesmikesell at gmail.com