Hello everyone!
I just installed RedHat 6.0 (which contains kernel v2.2.5) on a dual Pentium
Pro machine.
The computer has a 2940UW SCSI controller with 3 external 9GB disks.
Each disk has a 130MB swap partition and a 8.6GB Linux partition.
The three Linux partitions are configured as a raid 5 device /dev/md0.
After defining the device, making an ext2 filesystem on it and waiting for
it to synchronize, I wanted to check the setup: I turned off power to one of
the disk drives while performing a write operation to /dev/md0.
I immediately got a message from the kernel that the disk failed and that
the RAID device is working in degraded mode, which is OK. Now, I want to
simulate installing a new disk drive.
>From all the HOWTOs, I saw that I need to use ckraid. However, in 2.2.5
there is no ckraid: The man page says that "this work is now done by the
kernel", whatever that means.
Anyway, I powered on the other disk. Nothing happened. I tried to raidstop
and raidstart the disks and still nothing happened - it sees the drive as
faulty and continues in degraded mode.
What is the correct procedure to replace a failed drive?
Thanks,
Tal
