Max_P

Max_P, 1 year ago

The only reason it will not work would be if OP has manually configured stuff in /etc/X11 in some way. You can even have both in the system at the same time (which does require a little bit of extra configuration). Absolute worst case you check out /var/log/Xorg.0.log it tells you the config you forgot in /etc/X11/xorg.conf.d/20-nvidia.conf 5 years ago doesn’t work because the GPU is gone, you delete it, restart Xorg and you’re good to go.

Even on Windows it’s kind of a myth. Some people are like you need to DDU the old driver in safe mode before swapping them out. You can really have them both installed it’s just going to be weird because on Windows both vendors come with ridiculous amounts of bloat.

AMD cards just works as long as your distro is reasonably up to date. No extra drivers, in fact, installing AMDGPU-PRO is usually worse unless you fit some specific use cases.

Max_P, 1 year ago (edited 1 year ago)

I don’t know, it’s going to depend a lot on usage pattern and cache hit ratio. It will probably do a lot more writes than normal to the cache drive as it evicts older stuff and replaces it. Everything has tradeoffs in the end.

Another big tradeoff depending on the cache mode (ie. writeback mode) if the SSD dies, you can lose a fair bit of data. Not as catastrophic as a RAID0 would but pretty bad. And you probably want writeback for the fast writes.

Thus I had 2 SSDs and 2 HDDs in RAID1, with the SSDs caching the HDDs. But it turns out my SSDs are kinda crap (they’re about as fast as the HDDs for sequential read/writes) and I didn’t see as much benefit as I hoped so now they’re independent ZFS pools.