How many of these ideas are valid for 17.3 and the SSD TRIM command?

Ifeyegnuhow · 03-17-2016, 10:02 AM

I came across this page that has many modifications for Rosa 17.3 to aid extending the life of an SSD. I know that when I run the manual command to TRIM, it comes up with a huge number of bytes that were trimmed.

It does make me wonder about all the things mentioned on the page. Like so many other things on the web you can't tell how many are true and useful or just nonsense.

Hope it's OK to post the page in question, if not my question is moot

https://sites.google.com/site/easyli...rated-measures

I know that using 17.2 I found a page that showed how to make a TRIM script to run a 'cron' job every day. When I'd check the log file it always worked and looked like it was doing what it was intended to do. Now in 17.3 I don't have that script file installed, just the bare OS.

What in this list do I need or what should I ignore?

Thanks!

"If"

TobiSGD · 03-17-2016, 10:16 AM

So, after looking at the article, much of it is true, but there are some things that I wouldn't consider true anymore, especially the parts where they speak about wearout, which is not an issue anymore with modern SSDs. Overprovisioning is not necessary, modern SSDs already have a spare area to be used for wear-levelling. BTRFS works just fine on SSDs, it detects if it is running on an SSD and optimizes itself for it. Since wearout isn't an issue anymore the noatime setting isn't necessary anymore and I would have recommended to use relatime instead anyways, otherwise certain programs will not work correctly anymore (like the Mutt mail client).

Ifeyegnuhow · 03-17-2016, 02:46 PM

TobiSGD,

Thanks for the information, I still worry about the TRIM and why it seems to be so excessive when I invoke the command to run it manually. I'd like to think that if the system is aware of the SSD, like Win 7 DIDN'T ( but is claimed to ) why is the TRIM rate so high? Last time I ran it it was 33,814,786,048 bytes, seems like a lot to me <shrug> I liked the automatic cron script that I had in 17.2. But you indicate that it isn't necessary now, but there's no harm in having one is there?

Regards!

"If"