On Tue, 2003-05-27 at 22:02, Simon Tischer wrote: > I have a software raid1 (two 40GB ide) on one ide bus running under rh9, and > sometimes one of them breaks down, but /dev/md0 is still working. after > restarting raid, all is working normal. And no damage on one of both discs > Can anyone tell me why it is? > I'm a bit confused by this, but if I understand you right then the software raid is working correctly.
Running 2 raid1 disks on the same IDE channel is not usually a good idea - because of performance, and because if the IDE controller goes bang then you have no system. I bought a second IDE channel for my work PC so that I have one disk (alone) on one channel and the second on the second channel. IDE controllers are pretty cheap nowadays. If you lose a disk, then the system is supposed to be able to carry on - that's what you are using raid1 for :-) However, if you 'cat /proc/mdstat' you may well see one of the actual disks being recovered from the good one. This can take a while depending on the disk size. I tend to leave the computer to finish this, and then carry on working. The idea, again, though is that you should see no difference, although you will only be using one physical disk whilst the second is recovering. John. -- --------------------------------------------------------------- John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914 E-mail: [EMAIL PROTECTED] Fax: +44 (0)1752 233839 -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
