[NBLUG/talk] RAID1 and partitions

[Mark Street]

Hi,

I would go with your gut.  Putting swap on md0 just does not sound like 
a good thing to do.  Your experience with CentOS is similar to what I 
have done in the past.  Is this software RAID?  How much RAM and CPU do 
you have?  Depending on your answer you may not need much swap.  If any, 
put it at the end... or create a swap file on /

I have been running some old mail servers for over 8 years on software 
raid 5 with 4 drives, only 1 drive failure the whole time.  Still 
chugging along... it's an old Penguin Altus 1400 1U. Still kicks ass 
with the old Opterons and 16G of RAM.

Keep /boot on md0 and use ext2, nothing wrong with that.  Good stable 
filesystem.  If you feel you need the LVM go with it or just use ext4 
for /, your filesystem structure seems really basic.  I have done both 
in hardware and in VM environments with few issues.

Best Regards,


On 5/1/2015 10:23 AM, Omar Eljumaily wrote:
> Does anybody have any tips for setting up a RAID1 array on Ubuntu?
>
> I've looked at this:
>
> https://help.ubuntu.com/lts/serverguide/advanced-installation.html
>
> It suggests setting up
>
> md0 as a swap partition and
> md1 as an ext4 / partition which is also bootable.
>
> My experience with Centos is to do:
>
> md0: /boot with ext2
>
> md1: as an LVM volume creating partitions:
>
> swap
> and / as ext4
>
> My goal is reliability and to be able to boot into either volume when 
> the other is degraded.  Is there any standard way to do this?
>
> Thanks,
>
> Omar
>
>
>
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