> - have you evern wondered about other folks that try to build a sata-based > raid subsystem ?? > - how did their sata pass the "failed disk" test if it > reassigns its drive numbers upon reboot > > > With the second disk removed the disks names are changed, > > exactly.... that is the problem with scsi > - pull the power cord from it to simulate the disk failure > or pull the sata cable ... > > - in either case, if the disk drives rename itself, based on > who's alive, raid won't work to boot after the failed disk > ( but it will stay running until its booted ) > > > the 3rd disk /dev/sdc > > becomes /dev/sdb and the 4th disk (that was the spare disk) /dev/sdd becomes > > /dev/sdc. > > thta's always been true of scsi That's why devfs used names that wouldn't change, e.g. /dev/scsi/bus0/host0/target0/lun0/part1 Of course that's been deprecated in the newer 2.6 kernels and I don't know udev so I don't know if it has a similarly helpful naming scheme...anyone?
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