On Fri, Jun 24, 2022 at 7:35 AM John Mellor <john.mellor@xxxxxxxxx> wrote:
On 2022-06-23 23:04, ToddAndMargo via users wrote:
> Any of you guys know of a PCIe card that will do
> hardware RAID 1 with two NVMe drives?
>
> I have found some, but they are way to elaborate,
> and as such, way too expensive.
Maybe you have a weird hardware requirement that explains the question,
but why do you want a RAID-1 card? Software RAID is much cheaper,
faster, uses less power and is considerably more reliable. If you run
BTRFS or ZFS, then it is also easier on the drives, and recovery times
are hundreds of times lower than what you can do with hardware. That
translates directly into hundreds of times better reliability numbers.
Best of all, you do not need matching drives or drive sizes to implement
RAID-1. For a long time now, the only reason to run hardware RAID has
been underneath back-level versions of Windows or VMware.
Agreed. I have a 4x4gb Seagate Terrascale drive array running BTRFS in RAID1. Until it starts to fill up, I'm going to leave it RAID1 while BTRFS continues to improve RAID5 :)
And then I can convert it on the fly!
Thanks,
Richard
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