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Many Tmpfs Filesystems On Oracle Linux 7 (Doc ID 2237368.1)

Last updated on JUNE 02, 2020

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

 There are many  tmpfs seen  as below in df output.Need to know what these mounts below /run/user/1000, /run/user/0, /run/user/45, /sys/fs/cgroup for.


Filesystem Size Used Avail Use% Mounted on
devtmpfs 47G 0 47G 0% /dev
tmpfs 48G 256K 48G 1% /dev/shm
tmpfs 48G 26M 47G 1% /run
tmpfs 48G 0 48G 0% /sys/fs/cgroup
/dev/mapper/ol-root 99G 5.2G 89G 6% /
/dev/sda2 1014M 300M 715M 30% /boot
/dev/sda1 200M 9.5M 191M 5% /boot/efi
/dev/mapper/vg_ora-lv_ref 30G 46M 28G 1% /ref
/dev/mapper/vg_ora-lv_ora 2.0T 81M 1.9T 1% /cht
/dev/mapper/ol-doc 20G 45M 19G 1% /doc
/dev/mapper/ol-opt 40G 49M 38G 1% /opt
/dev/mapper/ol-var 7.8G 4.5G 3.0G 61% /var
/dev/mapper/ol-home 20G 106M 19G 1% /home
/dev/mapper/ol-tmp 20G 45M 19G 1% /tmp
tmpfs 9.5G 68K 9.5G 1% /run/user/1000
tmpfs 9.5G 36K 9.5G 1% /run/user/0
tmpfs 9.5G 16K 9.5G 1% /run/user/42

Cause

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In this Document
Symptoms
Cause
Solution


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