[CentOS] Replacing SW RAID-1 with SSD RAID-1

Thu Nov 26 09:53:01 UTC 2020
Roberto Ragusa <mail at robertoragusa.it>

On 11/24/20 8:20 AM, Simon Matter wrote:

> Sure, and for large disks I even go further: don't put the whole disk into
> one RAID device but build multiple segments, like create 6 partitions of
> same size on each disk and build six RAID1s out of it. So, if there is an
> issue on one disk in one segment, you don't lose redundancy of the whole
> big disk. You can even keep spare segments on separate disks to help in
> case where you can not quickly replace a broken disk. The whole handling
> is still very easy with LVM on top.

Same setup I've been using for 15 years at least.
Just have a standard partition size and keep using that (or multiple of that,
e.g. 256GiB, then 512GiB, than 1024MiB), so to keep numbers down.

Best regards.

    Roberto Ragusa    mail at robertoragusa.it