1

I have a Samsung Gaming Series Laptop that is about 3 years old running 16.04 that I tried to upgrade from 2 750GB HDDs to a 1.5 TB 5400 RPM HDD for Storage and a 500GB Samsung Evo 850. I hit a brick wall here, and most of the info concerning SSDs is more than two years old.

Right now I have a running Ubuntu with partitions all over the place, each with their own mount point. /home, /var and /tmp are on HDD, root and /usr are on SSD. Windows is intalled fully on SSD, because I use it only for gaming (shame on me, but GTAV and Skyrim on Wine would be a pain). While Windows boots in about 5 seconds, Ubuntu needs up to two minutes, which is not what I got a SSD for.

So which directories are save to put on the SSD? Some say I should limit writes as much as I can, some say modern SSDs are fine with loads of writes. Now where should I put which partitions? Can I move /home to SSD? Maybe with links to a bigger HDD Folder for files that don't need to be on the SSD? Which steps should I take to optimize for performance and longevity? And are there any things I should be super cautious about?

  • 2 minutes sounds like there's a different issue than a storage access bottleneck. That would be a long time even to boot from a rotating disk. You should look into creating a boot chart and analysing that for stalling boot processes. – David Foerster Jun 23 '16 at 9:41
2

So which directories are save to put on the SSD?

Any directory you want on it. I would advice the whole system and store your private data on a partition on the HDD.

Can I move /home to SSD?

Yes. I myself only put the directories in /home/$USER/ onto a partition. Since those directories are maintained from a config file (~/.config/user-dirs.dirs) I keep a copy of that on the partition and on re-install copy it over the new one.

Which steps should I take to optimize for performance and longevity?

All I would worry about is "tmpfs". I'd move those into RAM. And make sure "trim" is enabled/working.

And are there any things I should be super cautious about?

I am prepared for the SSD to fail. And that preparation is: have an SSD in the cupboard still in its packaging, install the disk. Install Ubuntu on disk. Mount partitions. Copy /discword/user-dirs.dirs to ~/.config/user-dirs.dirs. Install some extra software.

Takes about 30 minutes in total.

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.