Linux Mint jdb2 continuous writing to disk

Questions about applications and software
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Locked
luckypra

Linux Mint jdb2 continuous writing to disk

Post by luckypra »

Captured disk activity from last 2 days using below command but unable to find out why it is writing so much (426MB) on root partition

Code: Select all

iotop -oPa -d 2

Code: Select all

Total DISK READ :       0.00 B/s | Total DISK WRITE :       0.00 B/s
Actual DISK READ:       0.00 B/s | Actual DISK WRITE:       0.00 B/s
PID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND                                                                                   
239 be/3 root          0.00 B    426.21 M  0.00 %  0.17 % [jbd2/sdd2-8]
2678 be/4 root        961.21 M    107.91 M  0.00 %  0.03 % <emby mono-sgen>
2198 be/4 root          0.00 B      0.00 B  0.00 %  0.02 % udisksd --no-debug
6402 be/4 root         16.00 K      0.00 B  0.00 %  0.07 % [kworker/u4:1]
13162 be/4 root         16.00 K      0.00 B  0.00 %  0.09 % [kworker/u4:2]
I have below disk

Code: Select all

/dev/sdd2 on / type ext4 (rw,noatime,errors=remount-ro)
/dev/sda1 on /media/<user>/2TB_EXT4 type ext4 (rw,nosuid,nodev,noatime,uhelper=udisks2)
/dev/sdb1 on /media/<user>/2TB_EXT4_2 type ext4 (rw,nosuid,nodev,noatime,uhelper=udisks2)
What I can do to find out what is writing to disk continuously?

I looked at log dir if there are some excessive log being generated by some process but it all look normal. May be i am not looking correctly. I did find on /var/log and there is no file bigger than 2mb in that location modified in last 3 days.

Code: Select all

find . -type f -mtime -3 -exec ls -lh {} \;
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
WharfRat

Re: Linux Mint jdb2 continuous writing to disk

Post by WharfRat »

That activity is pretty much normal. My output is after a few minutes.

The jbd2 process has to do with journaling.

Code: Select all

Total DISK READ :       0.00 B/s | Total DISK WRITE :       0.00 B/s
Actual DISK READ:       0.00 B/s | Actual DISK WRITE:       0.00 B/s
  PID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND                                                                                                                                          
 2916 be/4 root          0.00 B      0.00 B  0.00 %  0.30 % hddtemp -d -l 127.0.0.1 -p 7634 -s | /dev/sda /dev/sdb /dev/sdc
  858 be/3 root          0.00 B   1888.00 K  0.00 %  0.19 % iotop -oPa -d 2/sda4-8]
  227 be/4 root          4.00 K      0.00 B  0.00 %  0.10 % [kworker/u16:5]
15343 be/4 root          0.00 B      0.00 B  0.00 %  0.03 % [kworker/u16:0]
  367 be/3 root          0.00 B     36.00 K  0.00 %  0.03 % [jbd2/sda2-8]
12364 be/4 bill          6.41 M     13.94 M  0.00 %  0.00 % firefox
  847 be/3 root          0.00 B      0.00 B  0.00 %  0.00 % [jbd2/sda8-8]
19389 be/4 bill         20.00 K      0.00 B  0.00 %  0.00 % python /usr/bin/terminator
 3413 be/4 bill          0.00 B    336.00 K  0.00 %  0.00 % dconf-service
Locked

Return to “Software & Applications”