for me 4 new hdd (4tb wd red plus), want to use a raid 5 system.
Additional it got an 250gb ssd in the system which I don't use for anything. So my idea was to use this ssd as cache for the raid 5.
Before I used madam for the raid. But If I read it right in the internet, mdadm is not supporting this feature.
So far I found out that LVM ist support the ssd cache with dm-cache.
Did anyone already use this setup in production and give me some advice?
Btrfs is not an option because there is no stable support for RAID5.