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kernel
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🔍 See Original Answer on Ask Ubuntu ⧉ 🔗
URL:
https://askubuntu.com/q/1188283
Title:
Should I turn off kernel logging (and how?) if I'm running off an SSD?
ID:
/2019/11/12/Should-I-turn-off-kernel-logging-_and-how__-if-I_m-running-off-an-SSD_
Created:
November 12, 2019
Edited: June 12, 2020
Upload:
September 15, 2024
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The linux kernel is well aware of SSDs for a long time and default installations seem to work just fine “out-of-the-box”.
I would leave logging and everything else to the default settings. From time to time I would monitor the life span of the SSD:
The above answer details how to check your remaining life of your SSD:
First step is to install nvme-cli because it provides the most information:
sudo apt install nvme-cli
Next gather information available from SSD:
$ sudo nvme smart-log /dev/nvme0
Smart Log for NVME device:nvme0 namespace-id:ffffffff
critical_warning : 0
temperature : 42 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 0%
data_units_read : 28,149,264
data_units_written : 19,392,109
host_read_commands : 559,538,536
host_write_commands : 171,732,762
controller_busy_time : 1,352
power_cycles : 2,384
power_on_hours : 1,362
unsafe_shutdowns : 133
media_errors : 0
num_err_log_entries : 608
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 1 : 42 C
Temperature Sensor 2 : 55 C
The percentage used is 0% after two years. When it hits 100% then theoretically the drive is all used up and needs replacing. But here is someone who has used up 250% which one would think impossible:
To make a long story short, chances are your SSD will outlast your computer system these days.