On Tue, 28 Jun 2022 14:25:36 -0300 Marcelo Laia <marcelol...@gmail.com> wrote:
> Hi, > > I bought a SSD solid disk and will perform a fresh install on it. > Debian testing. I've never used such a disc. > > I bought a Crucial CT1000MX500SSD1 (1TB 3D NAND Crucial SATA MX500 > Internal SSD (with 9.5mm adapter) — 6.35cm (2.5in) and 7mm). > > I read the recommendations on the > https://wiki.debian.org/SSDOptimization page. > > However, I still have some doubts: > > 1. Use ext4 or LVM partitioning? I think you have some confusion here. They are different layers in the mass storage hierarchy. ext4 is a file system. LVM is a system for managing volumes. Volumes are room on mass storage. File systems go into volumes to organize files and their metadata. So I recommend both. I usually build as follows: /dev/sda1: A 500 MB fat32 partition for EFI iff you are going to boot using UEFI. That's probably overkill, but on a 1 TB drive you have room to spare. That will mount to /boot/efi. Debian Installer will do that for you if it can. /dev/sda2: A 500 MB ext4 boot partition. Mounts at /boot. /dev/sda3: Unless you are using GPT, this is an extended partition, containing the rest: /dev/sda5: An encrypted LVM physical volume (PV). It contains: A swap logical volume (LV), sized per your hardware a root LV, mounted at /, and a home LV, mounted at /home All of those have sizes suitable for what you are doing, and I have no idea what you are doing. Any of those volumes or partitions that are mounted get the ext4 file system. With LVM, you can use GParted to expand and contract volumes within the (PV). So if later you decide you don't need swap space, you can delete the swap LV, and expand other LV(s) to use that space. Which means you don't have to create LVs to use up the entire PV when you start. You can expand into the unused space later as needed. > > 2. I read in the Warnming section that some discs contain bugs, > including Crucial. But I don't know if I need to use or not use > "discard" on this disk (CT1000MX500SSD1). If I need to proceed with > use "discard", would you please have any tips on how to do it? I > didn't understand how to do this. > > 3. Should I reserve a swap partition or not? I always had one on hdd > disks. I was in doubt, too. That depends on your hardware and work load, not the type of mass storage you have. If you've had swap in the past, you should almost certainly have it now. > > 4. Any other recommendations to improve the performance and lifespan > of this disk? You will find the performance a noticeable improvement over spinning rust, and life spans of SSDs are comparable to HDDs. I wouldn't worry about it. And for Murphy's sake, do backups! https://charlescurley.com/blog/posts/2019/Nov/02/backups-on-linux/ -- Does anybody read signatures any more? https://charlescurley.com https://charlescurley.com/blog/
