I have two raid6s running on mythbuntu 14.04. The are built on 6
enterprise drives. So, no hd issues as of now. Still, I plan to upgrade
as it has been a while and the size of the hard drives have become
significantly larger (a indication that my disks may be older) I want to
build new raid using the 16/14tb drives. Since I am building new raid, I
thought I could explore caching options. I see a mention of LVM cache
and few other bcache/xyzcache etc.
Is anyone of them better than other or no cache is safer. Since I
switched over to NVME boot drives, I have quite a few SATA SSDs lying
around that I can put to good use, if I cache using them.
I will move to xubuntu 20.04 as part of this upgrade. So, hopefully, I
will have recent versions of kernel, mdadm and fstools. With these I
should be able to make full use of current features, if any is needed
for caching support.
Please let me know your expert opinion.
Thanks
Ramesh
