Hi I am sending you the same reply that sent to someone else. Read below (And remember: I may be wrong partially; ask others to confirm) Some of the Promise cards offer the additional features of Hot Swap and Hot Spare. Check www.promise.com to find out appropriate card if you want either of these features. The card you specified, I think, is the entry model which means that it does not support these additional feature. Therefore you cannot pull disks while system is running. If one of the disks is not ok, you would see error messages on the console and also in /var/log/messages. When you are the only one logged in and no critical apps are running, type "find /" and make sure that the hard disks lights blink alternately. This is a basic check to ensure raid functioning. ataraid drivers are constantly evolving and right now these do not handle hot spare/hot swap issues very well. Neverthless, raid is still worth because your data is intact, in case of disk failure, upto the minute as opposed to your most recent back up. Thanks Murty On Tue, 28 May 2002, anil_tirola wrote: > >>1. How can I controll during the running system, if BOTH disks are ok? > With software-raid I only have to type >>"cat /proc/mdstat". But how do I > handle this with hardware-raid? > > >I'm not sure what you mean. > > >>2. How do I determine that one disk fails? > >From my experience, you'll know if a disk fails.. The system will crash. > > I mean: How do I know that ONE disk of the RAID1-ARRAY fails?????? > > > > > _______________________________________________ > > Ataraid-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/ataraid-list >
