Re: recommendations for supported, affordable hardware raid controller.
On Fri, Jan 01, 2021 at 01:06:47PM -0500, Steven Mainor wrote:
I'm looking for recommendations for a 6 or 8 port SATA hardware raid
controller that will hopefully be supported by the kernel and/or open
source drivers to put in my desktop computer. Any input welcome,
thanks.
Revenue generating system? Areca with a BBU. I wouldn't spend that much
myself on a home system, and I also don't have a home system large
enough that there'd be a noticeable performance difference even after
spending the money. Where something like that is helpful is if you have
a large number of disks in a RAID6--the nvram cache keeps the write
performance from being terrible. There are ways to do that now with
linux software RAID, but the additional complication and less common
configuration makes the easy hardware solution very attractive. If
you're doing RAID1 or you don't highly value small block write
performance then the md software solution will do just as well.
Depending on your requirements you might also consider lvm mirrors; the
nice thing about those especially in a home environment is that you can
selectively mirror critical data and stripe stuff you don't care if you
lose and relatively easily reallocate storage between different
strategies on the fly.
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