Messages in this thread | | | From | Allan Sandfeld <> | Subject | Re: hot IDE change | Date | Thu, 24 Jan 2002 10:19:19 +0100 |
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On Wednesday 23 January 2002 23:07, Wakko Warner wrote: > > This question is more about hardware, but is also related to Linux. > > If I have a harddisk, plugged into the motherboard (IDE cable and power), > > can I turn it off, plugging out first power cable, then IDE cable. > > Can it harm harddisk or motherboard? > > If I can do it, then will Linux detect it back, if I make this > > operation back: i.e. plug IDE cable, then power cable. > > I've read what everyone else has said about this. The one guy talking > about the pins and power has some good points. For me, I've always yanked > the ide cable before the power and made sure the drive was powered and > spinning before applying the ide cable. I have a machine at work dedicated > for this kind of thing. > > anyway, from the linux side, as others have said, make sure it's unmounted. > On my dedicated box at work, it's nfs mounted and the ide driver is a > module. I'm always sure to remove the modules before removing the disk. > > When compiled in, it's trickier. the source to hdparm has a script in the > contrib directory that allows you to turn off and back on an ide > controller. It won't do that if the disk is currently in use. You have to > do this before it will find another drive (ideally, turning off that > channel, swapping drive, turning back on) I've used this on my laptop that > has a hotswap cdrom.
Maybe ask it to spin down before cutting the power will be even better? Also the cable issues are not a problem if you have a controller meant for hotplugging (IDE RAID-controllers)
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