hi ya On 26 Nov 2002, H. Peter Anvin wrote: > Followup to: <3DE3CC8D.2080104@mvista.com> > By author: Steven Dake <sdake@mvista.com> > In newsgroup: linux.dev.raid > > > > IDE was not designed to hotswap. The trays are not "hot swappable" in > > that they can only be swapped while the system is off. > > > > There are IDE cards which can tristate -- effectively disconnect -- their > outputs. Some of them can even control the power to the drive. Such > drives are safe to hotswap, if they have been disconnected before > removing them. This requires driver support, however, and I'm not > sure if Linux has that. electrical hotswap is easy to implement ?? ( many different ways ) since one has to make the hotswap tray too .. i think the problem is after the new drive is inserted, how does the IDE drivers know to start rewriting all the data to the fresh/virgin disk .. that was aborted during the time it was previously attempting to write a 4GB file when the disk was pulled out... - if the raid drivers can do all the right magic... it should be good to build a nice tri-stated hotwap ide tray ( to me.. powering up a system with the system power switch or ( inserting a disk into a properly isolated ide connectors ( is the same issue... start the motors... than allow the cable ( connections than the normal system access to the disks c ya alvin http://www.Linux-1U.net ... 9" 1U w/ 2-4 laptop drives ... 26" 1U w/ 8x 180GB drives - 1.6TB - 1U-Raid5[tm] - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
