On Fri, 2 Jul 2004 00:40, "Marek Isalski" <[EMAIL PROTECTED]> wrote: > Russell Coker writes: > > Having the OS on one disk means that a single disk failure will kill the > > machine. While you may have good backups it's always more convenient > > if you can leave the machine running with a dead disk instead of having > > to do an emergency hardware replacement job. > > I've not tried Linux's software RAID for about 5 years now. How much does > hotswapping a dead IDE drive kill the machine? Does this at all depend on > the IDE controller or can most modern ones cope with the abuse?
Physically plugging or unplugging a P-ATA (IDE) disk is not supported. Some people have managed to get it to work, but it required the type of engineering effort that most people won't want to apply to their production machines (IE don't do it). If you have a hot-spare disk in the machine then you can have it take the place of a disk that dies while the machine is running and then replace the defective hardware during a scheduled maintenance time. The cheapest hot-swap disk array might be to have the disks in USB devices, USB supports hot-swap. I haven't tried having more than one USB block device in a system so I don't know how well this would work. My USB 2.0 IDE disk box can sustain over 30MB/s so there's no great performance loss unless you have one of the newest and fastest IDE disks. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
