Rich Freeman on 23 Oct 2014 04:05:57 -0700

[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

Re: [PLUG] Real (driverless) hardware RAID controller for PC?

On Wed, Oct 22, 2014 at 7:08 PM, James Barrett <> wrote:
> +1 for software raid's stability and lack of catastrophic "gotcha"s, but
> features are lacking. Some motherboards might not cooperate with hotplugging
> drives, and performance will lag since the CPU will be taxed doing RAID
> stuff.

I've never noticed Linux software RAID using any significant amount of
CPU back when I was using it.  Maybe if it was busy it would use a few
percent of one core.  Maybe if you have 50 drives or something it adds
up, but if you're scaling that large you should be using something
like ZFS anyway.

I agree that the hardware side can be more of an issue, but I think
that even most consumer motherboards today support hotplug as long as
they are in AHCI mode.

Philadelphia Linux Users Group         --
Announcements -
General Discussion  --