Am installing server 12.04LTS on a server with 2 hardware-controlled arrays. The O/S installed on one, but do not know how to get to the other. Fairly new Linux Server user, but have been with command-line interfaces since CP/M and Vax/VMS, just not familiar with Linux. Thanks for looking at my question--I searched for this answer, but may not have known the right questions to ask.
Installed from CD on an HP Proliant M350 G5 with 7 drives, two 70GB and five 154GB. I have configured the two 70GB in a RAID1 array via the HP setup utility, and the five 154 GB drives as RAID5. There is no spare. I see the two arrays in the HP E200i Smart Array RAID controller utility if I enter it during boot. The RAID1 array is one controller, the RAID5's on the second.
When the setup gets to the partitioning, it thinks it sees two arrays, it did not ask me for any drivers. I told the setup to configure the first array in what seemed to be a good fashion, and it boots to the O/S OK. Either I missed the opportunity to format the second array, or that's handled later.
The O/S and my home directory appear to be living on the 70 GB RAID1 array. I'd expect it to show as a single 70 GB drive, which it does: f -h gives the following result.
Filesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p1 66G 1.2G 61G 2% /
udev 990M 4.0K 990M 1% /dev
tmpfs 401M 420K 400M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 1001M 4.0K 1001M 1% /run/shm
/home/username/.Private 66G 1.2G 61G 2% /home/username
fstab makes reference to c0d0p1 and c0d0p5 (partition 5?) I see instructions that refer to drives as sda and such; I am guessing that setup decided to name my drive as c0d0p1. (Controller 0, drive 0, partition 1?)
1) How do I get prepare (partition, format, mount) the second RAID5 array so I can use it? I can easily wipe the drive and start over and see if I can do it during setup, but would rather not. I've already had fun setting up SAMBA and SSH (Yay, me! Without asking for help...)
2) The Linux server 12.04 documentation says to run dpkg- reconfigure mdadm, but doing so tells me that mdadm is not installed. I thought it was setting up using mdadm, as setup mentioned that in the introduction. Was it just recognizing the controller without needing drivers and is that best, or should I try to use mdadm?
3) Since I will be using the RAID5 array purely for storage on a mostly Windows 7 (sorry) network, what recommendations? ext4, I assume, but since the O/S drive has a swap area, should the storage drive have one?
Again, thanks for answering my questions; I apologize if it has been handled previously.