okay here is my problem...I installed a software Raid-5 on mybox last
night. Here is what I did. I downloaded and installed raidtools2
and mdadm. Do I need both? Next I wrote my raidtab file. Here is
what it looked like:
I placed this in the /etc/ directory.
I typed the command: mkraid/dev/md0
It proceeded to start copying data across the 3 drives. I received no
errors during this process. I let the machine run for a while.
Should I have received a message when it was completed? I then went
back and logged out of root and was going to log in and do a normal
shutdown. It would not let me log back in. It would not let me do
anything. I powered it down by the power button, and when I
restarted, I get the error "Fast Data Access MMU missing", and it
won't go any farther. Can anybody give me an idea of what happened?
Do I need to make the drives look identical partition wise with
Linux/swap size or do I need to make them Linux raid auto, or LVM
Linux? Do I need to install the raid-5 drivers at the start of the
system install, or is that useless in my case? System specs:
Sun Enterprise 250
dual sparc2 400's
4 18 gig hard drives
Installing deb woody kernel.
Here is how I would have done it
fdisk all disks you need for raid 5
set the type to fd (raid auto detect)
mdadm -Cv /dev/md0 -n3 -l5 /dev/sda1 /dev/sdb1 /dev/sdc1
the same for all your arrays..... /dev/md1 /dev/md2 (with the right
Please keep in mind that your /boot need NOT to be raid 5, but raid 1 or
no raid (I prefer raid1)
- From: "Huston" <email@example.com>