Em maio 22, 2019 12:27 Ram Kumar via arch-general escreveu:

Hello fellow Archers, I bought a new laptop that has NVMe ssd on it. I would like to install Arch on that, is there any precautions that i need to take? Also i would like to get feedback from Archers who already tried this.

Just don't enable discards at the fs mount options and you should be fine. Install and enable the fstrim.timer so it runs once a week, which is enough. Other than that it is like any other install, only, much faster. Regards, Giancarlo Razzolini

Em maio 22, 2019 12:42 Daurnimator escreveu:

On Thu, 23 May 2019 at 01:34, Giancarlo Razzolini via arch-general wrote:

...

Just don't enable discards at the fs mount options and you should be fine. Install and enable the fstrim.timer so it runs once a week, which is enough.

Oh? Why is this? I've had both enabled for multiple years now.

On NVMe Intel recommends to no have continuous discards at the fs level: https://wiki.archlinux.org/index.php/Solid_state_drive/NVMe#Discards Regards, Giancarlo Razzolini

Just follow the arch wiki on nvme. It's probably not optimal for your specific ssd, but it's close enough. On Wed, May 22, 2019, 10:49 AM Giancarlo Razzolini via arch-general < arch-general@archlinux.org> wrote:

Em maio 22, 2019 12:42 Daurnimator escreveu:

...

On Thu, 23 May 2019 at 01:34, Giancarlo Razzolini via arch-general wrote:

...

Just don't enable discards at the fs mount options and you should be fine. Install and enable the fstrim.timer so it runs once a week, which is enough.

Oh? Why is this? I've had both enabled for multiple years now.

On NVMe Intel recommends to no have continuous discards at the fs level:

https://wiki.archlinux.org/index.php/Solid_state_drive/NVMe#Discards

Regards, Giancarlo Razzolini

Nice, Thanks a lot guys. My first job for tomorrow will be to install Arch on my laptop. can you explain me a little detail on that rewrite stuff?, i am slightly confused On Thu, 23 May 2019 at 01:41, David C. Rankin < drankinatty@suddenlinkmail.com> wrote:

On 05/22/2019 10:27 AM, Ram Kumar via arch-general wrote:

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I bought a new laptop that has NVMe ssd on it. I would like to install Arch on that, is there any precautions that i need to take? Also i would like to get feedback from Archers who already tried this.

Drive it like you stole it!

No special precautions needed for SSD anymore. The old write-limitations have all but disappeared. Samsungs 3/5 year warranties presume a 60% daily rewrite of the drive (so for a 1T drive, that's 600GB of daily writes assumed)

Like 11 sec boots from OFF to Full Desktop? They are pretty amazing compared to platter. Have large builds (like rebuilding php or KDE). Compile times now a fraction of what they were with platter drives.

See https://wiki.archlinux.org/index.php/Solid_state_drive for TRIM or fstrim configs/consideration.

-- David C. Rankin, J.D.,P.E.

Excelent, thanks Now my next immediate task will be to install Arch on Ssd and begin using it... On Thu, 23 May 2019, 9:47 am David C. Rankin, < drankinatty@suddenlinkmail.com> wrote:

On 05/22/2019 10:12 PM, Ram Kumar via arch-general wrote:

...

Nice, Thanks a lot guys. My first job for tomorrow will be to install Arch on my laptop.

can you explain me a little detail on that rewrite stuff?, i am slightly confused

Sure, here is a good article that explains it:

How Long do SSDs Really Last? https://www.ontrack.com/blog/2018/02/07/how-long-do-ssds-really-last/

You can find many more similar articles, and if you find the old (pre-2015) ones, you will see the fear they had on exceeding the cell write limits. SSD's have improved significantly, and the cell re-write issue has gone away for the most part.

As mentioned in the article to hit the lifetime of a 250GB drive in one year, you would need to re-write 190GB per-day, every day, for the entire year.

In normal desktop/laptop use, you rarely write more than 1-2GB a day on average -- so that would translate into a 190-95 year wear-life for the drive under normal use. Even at 10GB a day, that would be a 19 year life for the drive.

So based on those figures, you would install Arch with your choice of desktop, use it for the day, delete everything and repeat the install/delete every day for 10 years and still be fine.

-- David C. Rankin, J.D.,P.E.

On Thu, 23 May 2019 09:01:49 +0100, Ralph Corderoy wrote:

The SSD drive also reports its own personal view of lifetime remaining and other interesting statistics using https://en.wikipedia.org/wiki/S.M.A.R.T%2E.

173 Ave_Block-Erase_Count -O--CK 095 095 000 - 77 202 Percent_Lifetime_Remain ----CK 095 095 001 - 5

`smartctl -x /dev/sda', for example, can gather the data.

Only if it's in the data base. [root@archlinux rocketmouse]# smartctl -x /dev/sda | grep 'Vendor Specific SMART Attributes' -A 11 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE 9 Power_On_Hours -O--C- 100 100 000 - 16224 12 Power_Cycle_Count -O--C- 100 100 000 - 581 167 Unknown_Attribute -O---K 100 100 000 - 0 168 Unknown_Attribute -O--C- 100 100 000 - 0 169 Unknown_Attribute PO---- 100 100 010 - 0 173 Unknown_Attribute -O--C- 161 161 000 - 0 192 Power-Off_Retract_Count -O--C- 100 100 000 - 149 194 Temperature_Celsius PO---K 073 065 020 - 27 (Min/Max 10/35) 241 Total_LBAs_Written -O--CK 100 100 000 - 287072 ||||||_ K auto-keep For the SSDs on my machine I'm using "ocz-ssd-utility" to get erase count, lifetime percentage and other SMART information, let alone that I could update the firmware, while the SSDs are used.

Wow,.. Nice to hear that Dorian. Thank you On Sun, 26 May 2019, 10:56 pm Dorian C via arch-general, < arch-general@archlinux.org> wrote:

I wouldn't install it any other way. I'm using a samsung pro ssd, install date was 3-15-2015 no issues whatsoever, on a 2009 HP 8200 elite mind you, so i'm guessing my pc will go before my ssd. Proper partition alignment is essential for optimal performance and longevity, also check this out: arch_solid_state_drive https://wiki.archlinux.org/index.php/Solid_state_drive

On Wed, May 22, 2019 at 11:49 AM Giancarlo Razzolini via arch-general < arch-general@archlinux.org> wrote:

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Em maio 22, 2019 12:42 Daurnimator escreveu:

...

On Thu, 23 May 2019 at 01:34, Giancarlo Razzolini via arch-general wrote:

...

Just don't enable discards at the fs mount options and you should be fine. Install and enable the fstrim.timer so it runs once a week, which is enough.

Oh? Why is this? I've had both enabled for multiple years now.

On NVMe Intel recommends to no have continuous discards at the fs level:

https://wiki.archlinux.org/index.php/Solid_state_drive/NVMe#Discards

Regards, Giancarlo Razzolini