On Fri, Sep 05, 2014 at 08:01:05AM -0600, Warren Young wrote:
On 9/5/2014 07:18, Richard Zimmerman wrote:
Until I read this thread, I've never heard of building RAIDs on bare metal drives. I'm assuming no partition table, just a disk label?
I don't know what you mean by a disk label. BSD uses that term for their alternative to MBR and GPT partition tables, but I think you must mean something else.
There is another method of disk naming, I think it gained popularity between /dev/sda and UUID, that was something like LABEL=swap or LABEL=root. I haven't used it in years so don't remember the details.
As for building on bare metal, as it stands, during installation, the RedHat way is you make, for example, a /boot, / and swap, then make the same partitions on drive 2 (for a RAID-1). You then create 3 RAID devices, one for each partition. Then, when a drive fails, you have three devices to worry about. In contrast, as mentioned on the CentOS wiki, one can just do a normal install, then mirror the drive with just one RAID device. I'm guessing that is what was meant.