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Accepted
yael
Asked: 2016-03-02 06:38:25 +0800 CST

linux + how to know the time details from df command

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is it possible to know when partition was mounted from storage volume?

for example latly we know about that netapp19:/volume/orsdcp_nfs was mounted on /oraT

but how to know when? ( regarding that we not have info from history command )

 14:28:01 root@serverFF100:/ # df -h
  Filesystem                           Size  Used Avail Use% Mounted on
 /dev/mapper/rootvg-slash             60M  431M  168M  73% /
 tmpfs                                5.G  8.0K  5.9G   1% /dev/shm
 /dev/mapper/opt                      92M  445M  496M  48% /opt
 /dev/mapper/hds                      5G  2.0G  2.8G  42% /opt/hds
 /dev/mapper/usr                      1.G  996M  320M  76% /usr
 /dev/mapper/var                      3G  853M  2.0G  30% /var
 /dev/mapper/home                     28M   40M  196M  17% /home
 /dev/sdb1                            16M   69M   78M  47% /boot
 tmpfs                                3.2G   52K  3.0G   1% /tmp
 netapp10:/volume/eedfede/ildgdb01       1G   50G   65G  44% /erfa
 netapp10:/volume/lwdefe_nfs             77G  713G   54G  94%       /ora/data/lgrerrd
 netapp10:/volume/sdfdcv_nfs             49G   41G  360G  11%   /ora/data/sddfed
 netapp19:/volume/orsdcp_nfs             89G   82G  778G  10% /oraT
linux

1 Answers

  1. Best Answer

    It depends on remote storage server, if it has some logs about nfs accesses. df command will show you only disk usage stats, nothing more. If you don't have any logs, you can prepare cronjob for every 5 minutes, which will run mount and compare result with expected mounts. Maybe something will be in system logs, but I think it will not.

    Basically you cannot detect when some target has been mounted ex-post.

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