Hi. Thank you for your response. Em [2021-12-08 qua 14:49:50+0000], piorunz escreveu:
> I understand you have one SATA 2.5" slot in your laptop and one NVMe > slot, and you want to utilize them both. That is correct. >> On the SSD I intend to leave 35 GB unpartitioned for extra over >> provisioning. It would have just one 215 GB partition. > > Leave more overprovisioning if you can. Use Btrfs with zstd compression > for your / and /home, you will gain many gigabytes. How much overprovisioning would you recommend? I can probably afford more indeed (because of the 1 TB HDD), but excessive overprovisioning could increase the risk of the system failing due to lack of disk space during some important task. Also, I heard that Linux filesystems like having some reasonable (some say 10%) internal (within the filesystem) free space. > This doesn't make any sense. Don't run RAID1 SSD+HDD. You will kill > all gains SSD NVMe provides. I lack RAID experience, but I assumed the kernel would easily be smart enough to read from the fastest RAID member (SSD), so read performance would be great. And I hoped the kernel would also be smart enough to, on writes, write to the SSD first and later (asynchronously) replicate to the HDD. But now a quick web search indeed suggests that those optimizations are not default or common, so we can drop the RAID idea. > / on NVMe Btrfs > noatime,nodiratime,space_cache=v2,ssd,compress-force=zstd:6,subvol=@ > > /home on NVMe Btrfs > noatime,nodiratime,space_cache=v2,ssd,compress-force=zstd:6,subvol=@home About those options: - noatime: I didn't know about this issue, I thought relatime was efficient enough. Thank you for the tip! - nodiratime: According to the mount manpage, noatime implies nodiratime. - ssd: Does btrfs not autodetect SSD? Why provide ssd option? - Why `compress-force' instead of simply `compress'? For more context, my DE is Gnome and some of my most often used applications are: - GNU Emacs - notmuch and offlineimap (I am considering switching to mbsync) - GNU IceCat and Mozilla Firefox - Gajim and GNU Jami - Nextcloud (it is always running but rarely syncing changes) - Gnome Boxes or Virtual Machine Manager running a VM with 2 GiB RAM and one .qcow2 disk image currently weighting 24 GB. Kind regards! -- - Many people hate injustice but few check the facts; this causes more injustice. Ask me about <https://stallmansupport.org> - I am Brazilian. I hope my English is correct and I welcome feedback. - Free Software Supporter: https://www.fsf.org/free-software-supporter - If an email of mine arrives at your spam box, please notify me.