Ruslan Sivak wrote:
> B.J. McClure wrote:
>>
>>> I would like to set up CentOS on 4 SATA hard drives that I would like to
>>> configure in RAID10. I read somewhere that Raid10 support is in the
>>> latest kernel, but I can't seem to get anaconda to let me create it. I
>>> only see raid 0, 1, 5, and 6.
>>>
>>> Even when I tried to set up raid5 or raid1, it would not let me put the
>>> /boot partition on it, and I though that this was now possible.
>>>
>>> Is it possible for me to set up the configuration I'm looking for?
>>>
>>> Russ
>>>
>> Cannot speak to raid 10 but have been running 4.4 an 5.0 with raid 1
>> and /boot partition on md0 for some time. Have not seen the issue you
>> refer to.
>>
>> bj
>>
>>
>
> Well as far as Raid10, it's not even an option for the installer. If I
> do select raid1 for the entire array, I only get the space of 3 of the 4
> drives, and the installer still complains that I cannot put boot on a
> raid system.
> Is there a how-to somewhere on getting this to work?
I don't know if the installer will let you do it, but you are supposed
to be able to create RAID1 devices, then stripe across them by using
those md devices in a RAID0. I'm not sure if there is any advantage to
that over using LVM to combine the RAID1 devices though. Personally I
prefer to use RAID1 and deal with the space on separate mounted
partitions since it permits recovering the data from any single drive
but if I had to have a larger chunk I'd probably put /boot on a RAID1
and the rest in mirrored partitions combined in LVM.
--
Les Mikesell
lesmikesell at gmail.com