sar -F

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Display filesystems usage statistics for currently mounted filesystems. Pseudo-filesystems are ignored. At the end of the report, sar will display a summary of all those filesystems. Use of the MOUNT parameter keyword indicates that mountpoint will be reported instead of filesystem device. Note that filesystems statistics depend on sadc option -S XDISK to be collected.

  • sar -F
  • sar -F --human
  • for i in `ls /var/log/sysstat/sa??`; do sar -f $i -F --human; done

Usage filesystem /dev/root at the end of the day:

for i in `ls /var/log/sysstat/sa??`; do echo "DAY:$i"; sar -f $i -F --human; done | egrep "/dev/root|DAY" | awk '{print $1" "$3}' | egrep "DAY|00:10"


To activate it: sadc option in /etc/sysstat/sysstat -S XDISK or -S XALL activated.

Filesystems statistics, disk and inodes usage
Linux 4.15.0-74-generic (gitlab-runner-2) 	01/19/2020 	_x86_64_	(4 CPU)
08:07:01 PM  MBfsfree  MBfsused   %fsused  %ufsused     Ifree     Iused    %Iused FILESYSTEM
08:08:01 PM      3231      6781     67.73     73.00    541674    113686     17.35 /dev/vda2
08:08:01 PM         0        89    100.00    100.00         0     12842    100.00 /dev/loop0
08:08:01 PM         0        89    100.00    100.00         0     12842    100.00 /dev/loop1
08:08:01 PM     10276     90003     89.75     94.87   4456522   2097078     32.00 /dev/vdb1
Summary:         3231      6781     67.73     73.00    541674    113686     17.35 /dev/vda2
Summary:            0        89    100.00    100.00         0     12842    100.00 /dev/loop0
Summary:            0        89    100.00    100.00         0     12842    100.00 /dev/loop1
Summary:        10276     90003     89.75     94.87   4456522   2097078     32.00 /dev/vdb1
             %fsused
                    Percentage of filesystem space used, as seen by a privileged user.
             %ufsused
                    Percentage of filesystem space used, as seen by an unprivileged user.



sar -F
Requested activities not available in file /var/log/sysstat/sa16
Solution: configure disk collection -S XDISK information in /etc/sysstat/sysstat 


Related terms[edit]

See also[edit]

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