hey guys,
I'm trying to build up a 12.04 Desktop with the following config:
I have a hp microserver n36l that has 4 bays which are connected to a raid card, I've setup the controller options to be single drives so they appear individually. I've additionally got another sata port which has another drive of the same size as well as a 64GB SSD hdd I'll be installing the OS onto.
So it's like this
RAID COntroller = 4x 2TB WD Green Drive (single drive mode)
SATA port = 1x 2TB WD green drive
eSATA port = 64GB SSD (ubuntu desktop install)
What I want to achieve is to software raid the 4xWD green drives to be RAID5 with the extra WD green drive in the SATA port as the RAID spare.
I've tried installing the desktop 12.04 and install mdadm to attempt to build the raid but it never finds the devices despite running gpart which confirms the drives
/dev/sda = WD Green 2TB
/dev/sdb = WD Green 2TB
/dev/sdc = WD Green 2TB
/dev/sde = WD Green 2TB
/dev/sdg = WD Green 2TB (spare)
/dev/sdf = SSD drive (Operating System)
I run the following command within the desktop environment and it gives me an error saying 'no raid devices found' (not exact error message).
here is my syntax
sudo mdadm --create /dev/md0 --chunk=4 --level=5 --raid-devices=4 /dev/sda /dev/sdb /dev/sdc /dev/sde --spare-devices=1 /dev/sdg
am I doing something wrong? or is there a GUI friendly way I could go about creating this RAID? or perhaps there is a limitation to this that I'm missing?
I don't want to complicate it by installing an OS on it and would like to store any RAID config information on the SSD.
any help appreciated.
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